Equipment Engineering Education

Water-to-Air Heat Exchanger Trainer

EEELAB14001

Water-to-Air Heat Exchanger Trainer

Heat Exchanger Supply Unit

EEELAB14002

Heat Exchanger Supply Unit

Tubular Heat Exchanger

EEELAB14003

Tubular Heat Exchanger

Plate Heat Exchanger

EEELAB14004

Plate Heat Exchanger

Shell & Tube Heat Exchanger

EEELAB14005

Shell and Tube Heat Exchanger

Jacketed Vessel with Stirrer & Coil

EEELAB14006

Jacketed Vessel with Stirrer and Coil

Heat Transfer in the Fluidised Bed

EEELAB14007

Heat Transfer in the Fluidised Bed

Trainer Tubular Heat Exchanger

EEELAB14008

Trainer Tubular Heat Exchanger

Heat Transfer in a Tubular Heat Exchanger

EEELAB14009

Heat Transfer in a Tubular Heat Exchanger

Cross-Flow Heat Exchanger

EEELAB14010

Cross-Flow Heat Exchanger

Multipurpose Air Duct and Heat Transfer Unit

EEELAB14011

Multipurpose Air Duct and Heat Transfer Unit

Heat Transfer Bench

EEELAB14012

Heat Transfer Bench

Trainer for Various Heat Exchangers

EEELAB14013

Trainer for Various Heat Exchangers

Wet Cooling Tower

EEELAB14014

Wet Cooling Tower

Cooling Column, Type 2

EEELAB14015

Cooling Column, Type 2

Cooling Column, Type 3

EEELAB14016

Cooling Column, Type 3

Cooling Column, Type 4

EEELAB14017

Cooling Column, Type 4

Cooling Column, Type 5

EEELAB14018

Cooling Column, Type 5

Assembly Station: Pipes and Valves and Fittings

EEELAB14019

Assembly Station: Pipes and Valves and Fittings

Assembly and Alignment of Pumps and Drives

EEELAB14020

Assembly and Alignment of Pumps and Drives

Assembly Station: Spur Wheel / Worm Gear Mechanism

EEELAB14021

Assembly Station: Spur Wheel / Worm Gear Mechanism

Assembly Exercise: Spur Wheel / Worm Gear Mechanism

EEELAB14022

Assembly Exercise: Spur Wheel / Worm Gear Mechanism

Assembly Station: Piston Compressor

EEELAB14023

Assembly Station: Piston Compressor

Assembly Exercise Piston Compressor: Functional Test

EEELAB14024

Assembly Exercise Piston Compressor: Functional Test

Assembly Exercise: Piston Compressor

EEELAB14025

Assembly Exercise: Piston Compressor

Multimedia Learning Software: Piston Compressor

EEELAB14026

Multimedia Learning Software: Piston Compressor

Assembly Exercise: Spur Gear

EEELAB14027

Assembly Exercise: Spur Gear

Assembly Exercise: Shut-off Valve

EEELAB14028

Assembly Exercise: Shut-off Valve

Assembly Exercise: Wedge Gate Valve and Angle Seat Valve

EEELAB14029

Assembly Exercise: Wedge Gate Valve and Angle Seat Valve

Assembly Exercise: Butterfly Valve and Non-Return Valve

EEELAB14030

Assembly Exercise: Butterfly Valve and Non-Return Valve

Assembly Exercise: Ball Valve and Shut-off Valve

EEELAB14031

Assembly Exercise: Ball Valve and Shut-off Valve

Hydraulic Valves and Fittings Test Stand

EEELAB14032

Hydraulic Valves and Fittings Test Stand

Assembly Exercise: Shaft with Journal Bearings

EEELAB14033

Assembly Exercise: Shaft with Journal Bearings

Assembly Exercise: Hydrodynamic Journal Bearing

EEELAB14034

Assembly Exercise: Hydrodynamic Journal Bearing

Alignment of Drives, Shafts and Gears

EEELAB14035

Alignment of Drives, Shafts and Gears

Calibrating a Pressure Sensor

EEELAB14036

Calibrating a Pressure Sensor

Principles of Industrial Sensors

EEELAB14037

Principles of Industrial Sensors

PLC Module

EEELAB14038

PLC Module

PLC Application: Materials Handling Process

EEELAB14039

PLC Application: Materials Handling Process

Computer Integrated Manufacturing and Handling System

EEELAB14040

Computer Integrated Manufacturing and Handling System

Fuzzy Control: Ball-on-Beam

EEELAB14041

Fuzzy Control: Ball-on-Beam

Fuzzy Control: Inverted Pendulum

EEELAB14042

Fuzzy Control: Inverted Pendulum

Fuzzy Control: Ball-on-Plate

EEELAB14043

Fuzzy Control: Ball-on-Plate

Fuzzy Control: Carrier Vehicle with Inverted Pendulum

EEELAB14044

Fuzzy Control: Carrier Vehicle with Inverted Pendulum

Training System: Fundamentals of Hydraulics

EEELAB14045

Training System: Fundamentals of Hydraulics

Components Set Electrohydraulics

EEELAB14046

Components Set Electrohydraulics

Hydraulic Servo System

EEELAB14047

Hydraulic Servo System

Training System: Pneumatics, Electro-Pneumatics and PLC

EEELAB14048

Training System: Pneumatics, Electro-Pneumatics and PLC

Biotechnical Production of Ethanol

EEELAB14049

Biotechnical Production of Ethanol

Biogas Plant

EEELAB14050

Biogas Plant

Airlift Reactor

EEELAB14051

Airlift Reactor

Tubular Reactor

EEELAB14052

Tubular Reactor

Continuous Stirred Tank Reactor

EEELAB14053

Continuous Stirred Tank Reactor

Tubular Reactor

EEELAB14054

Tubular Reactor

Stirred Tanks in Series

EEELAB14055

Stirred Tanks in Series

Discontinuous Stirred Tank Reactor

EEELAB14056

Discontinuous Stirred Tank Reactor

Fixed Bed Catalysis

EEELAB14057

Fixed Bed Catalysis

Flow Injection Analysis

EEELAB14058

The flow injection analysis (FIA) supplements CE 380. It uses the photometer in as a detector to detect the reaction product glucose.   The multi-channel pump permanently conveys three liquid flows into the FIA. The dissolved reaction products from CE 380 and an indicator reagent are first mixed in one chamber. The mixture then flows through a helical reaction ....

Hydroturbines

EEELAB14093

     Absorption and Adsorption          Adsorption and Membrane Separation Processes          Aerobic Processes          Anaerobic Processes        &....

3 Series Featuring Simple Control Systems

EEELAB14094

3 Series Featuring Simple Control Systems          Assembly & Maintenance Exercises: Pumps          Assembly Exersises Fittings          Assembly Projects          Automati....

Control of 4 Variables from Process Engineering

EEELAB14095

facilitates practical learning in the control of four controlled variables which are commonplace in process engineering.   A circuit with a graduated transparent tank is provided for the control of flow rate, level and pressure. Two actuator possibilities are included for use, namely, a variable-speed pump and a pneumatic control valve. A disturbance variable can be generated by a....

Fault Finding in Control Systems

EEELAB14096

facilitates practical learning in the control of three controlled variables which are commonplace in process engineering.   A circuit with a collecting tank, pump and graduated tank is provided for control of level and flow rate. A pneumatic control valve is used as the actuator. There is a valve in the tank outlet to generate a disturbance variable in level control. Cascade contro....

Process Control Engineering Experimentation Plant

EEELAB14097

The supply of processes with media such as water and compressed air in industry is usually provided from a separate, centralised supply unit. Control and monitoring of the processes are also centralised from a control station. RT 590 enables familiarisation with a practical scenario of this nature.   The trainer includes a water circuit with a pump, collecting tank and ....

Process Control Software for RT 681 and RT 682

EEELAB14098

process control software (SCADA) was developed specifically for the and the. It is possible to connect both trainers simultaneously. The software and the trainers communicate via Profibus DP modules. Changes to the software are transmitted to the controller of the relevant trainer.   The process is represented in the "Process schematic" window. The reference vari....

Multivariable Control: Vacuum Degassing

EEELAB14099

the complexities of a multivariable control system can be learned in a practical manner. The model for the controlled process is a typical application from process engineering: separation of gas dissolved in liquid. The pressure falls below the vapour pressure of the dissolved gas in a vacuum tank, so that it passes into the gas phase and can be removed (desorption).   The l....

Multivariable Control: Stirred Tank

EEELAB14100

the complexities of a multivariable control system can be learned in a practical manner. The model for the controlled process is a typical application from process engineering: A chemical reaction taking place in a heated stirred tank. The reactants entering the stirred tank are pre-heated by the outflowing products in order to enhance energy efficiency.   Water is used as th....

PLC Application: Mixing Process

EEELAB14101

This trainer for PLC applications can be used to create complex PLC control functions from the field of process engineering, particularly for processes involving metering and mixing. The system consists of the base frame with a storage tank, a centrifugal pump and a demonstration panel on which all components are clearly laid out. A pump delivers water to three tanks, controlled via so....

Calibration Trainer

EEELAB14102

The calibration trainer is used to investigate the transmission behaviour of electrical and pneumatic control loop components such as transducers and control valves. Electrical and pneumatic signals can be generated to effect actuation of the individual control loop components. A precision measuring technique facilitates the recording of the output signals from the control loop components.....

Calibration Station

EEELAB14103

The calibration station is used in the investigation of the transmission behaviour of electrical and pneumatic control loop components. Electrical and pneumatic signals can be generated to effect actuation of the individual control loop components. A precision measuring technique facilitates the recording of the output signals from the control loop components. The supply of auxiliary power....

Operation of Industrial Controllers

EEELAB14104

This experimental unit familiarises students with the operation and function of a state-of-the-art industrial controller.     The controller has freely accessible inputs and outputs. Defined input levels and step signals can be produced with a signal generator. A digital voltmeter is used to measure the input and output signals. A simple first order lag is simulate....

Networking of Industrial Controllers

EEELAB14105

One of the aims of process automation is to monitor and control plant or plant components centrally from a computer. This task performed by a process control system.   This experimental unit demonstrates the operation of a process control system based on a simple application. The experimental unit consists of two industrial controllers interconnected via a field bus interface (....

Set-up of Field Bus Systems

EEELAB14106

Field bus technology plays a key role in modern-day process automation. The field bus permits networking of terminal devices such as controllers, sensors or actuators in the plant system (field level) with the higher-level control room (control level). A network of this kind can be quite extensive; line lengths of as much as 1000 metres and more are possible.    ....

Optimization of Control Loops

EEELAB14107

  This experimental unit with the interaction between controller and controlled system, the objective being for the closed control loop, comprising the controller and the controlled system, to exhibit the desired optimum response. The setting of controller parameters - a key practical aspect - can be practised safely and intensively using simulation software. Concepts such as op....

Test Stand for Control Valves

EEELAB14108

  Control valves are key components of process engineering systems. They act as an actuator and create a link between the controller and the system. Control valves are generally used for regulating flows of gases or liquids. Optimum control loop design depends on a sound knowledge of control valve behaviour as well as knowledge of the controlled system response.   The m....

Cutaway Model: Standard Orifice Plate

EEELAB14109

Standard orifice plate, prepared as a cutaway model. Mounted on a demonstration panel.  Familiarization with the construction and functionality of all parts

Cutaway Model: Flow Nozzle

EEELAB14110

Standard nozzle, prepared as a cutaway model. Mounted on a demonstration panel. Familiarization with construction and functionality of all parts

Cutaway Model: Standard Venturi Meter

EEELAB14111

Standard venturi meter, prepared as a cutaway model. Mounted on a demonstration panel. Familiarization with the construction and functionality of all parts

Cutaway Model: Straight-Way Valve

EEELAB14112

Standard venturi meter, prepared as a cutaway model. Mounted on a demonstration panel. Familiarization with the construction and functionality of all parts

Cutaway Model: Corner Valve

EEELAB14113

Standard corner valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Angle Seat Valve

EEELAB14114

Standard angle seat valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved.  Familiarization with the construction and functionality of all parts

Cutaway Model: Non-Return Valve

EEELAB14115

Standard flanged non-return valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Pressure Reducing Valve

EEELAB14116

Standard pressure reducing valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Strainer

EEELAB14117

Standard line strainer, prepared as a cutaway model. Mounted on a demonstration panel.   Familiarization with the construction and functionality of all parts

Cutaway Model: Gate Valve

EEELAB14118

Standard gate valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved.  Familiarization with the construction and functionality of all parts

Cutaway Model: Straight-Way Plug Valve

EEELAB14119

Standard straight-way plug valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: 3-Way Plug Valve

EEELAB14120

Standard flanged 3-way plug valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Ball Valve

EEELAB14121

Standard ball valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts  

Cutaway Model: Safety Valve

EEELAB14122

Standard safety valve, prepared as a cutaway model. Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Models: Various Screwed Pipe Connections

EEELAB14123

Three screwed pipe connections, made from different materials: gun metal, PVC and brass. Arranged on demonstration panel. Familiarization with the construction and functionality of all parts

Cutaway Models: Pressure Gauges

EEELAB14124

A demonstration panel is equipped with a Bourdon tube pressure gauge and a leaf spring manometer. The set also includes the working mechanisms of the different pressure gauges. These unencapsulated mechanisms show the principle of operation of each pressure gauge. An air pump is included for demonstration purposes. Familiarization with the construction and f....

Cutaway Model: Centrifugal Pump

EEELAB14125

A single stage centrifugal pump, prepared as a cutaway model. Mounted on a base plate. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Piston Pump

EEELAB14126

Standard reciprocating pump, prepared as a cutaway model. Mounted on a base plate. The functionality of all moving parts is preserved.  Familiarization with the construction and functionality of all parts

Cutaway Model: Gear Pump

EEELAB14127

Standard gear pump, prepared as a cutaway model. Mounted on a base plate. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Pump Impeller Display Panel

EEELAB14128

Demonstration panel with various types of pump impellers. Comprising radial flow impeller, centrifugal impeller for pump handling semi-solids, axial flow impeller, open type centrifugal impeller and centrifugal impeller for self-priming pump. Familiarization with construction parts and their function

Cutaway Model: Underground Hydrant

EEELAB14129

Standard underground hydrant, prepared as a cutaway model. With flange fitting, mounted on a base plate. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Resilient Seated Gate Valve

EEELAB14130

Resilient seated gate valve, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Screw Down Valve

EEELAB14131

Standard screw down valve, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. The functionality of all moving parts is preserved Familiarization with the construction and functionality of all parts

Cutaway Model: Changeover Valve

EEELAB14132

Standard changeover valve, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Gas Meter

EEELAB14133

Standard gas meter, 2-pipe system, prepared as a cutaway model. With 1” fittings, and mounted on a demonstration panel. Viewing windows located at the front and top of the meter. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Backflow Preventer

EEELAB14134

Standard backflow preventer, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Non-Return Butterfly Valve

EEELAB14135

Standard non-return butterfly valve, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Water Meter

EEELAB14136

Standard water meter, prepared as a cutaway model. The rotation of a propeller which is counted by an inductive transducer is used to measure water flow rate.  Mounted on a demonstration panel. The functionality of all moving parts is preserved. Familiarization with the construction and functionality of all parts

Cutaway Model: Strainer

EEELAB14137

Standard strainer, prepared as a cutaway model. With flange fittings, and mounted on a demonstration panel. Familiarization with the construction and functionality of all parts

Dimensional Metrology I: Training Kit 1

EEELAB14138

         Dimensional Metrology I: Training Kit 1         Dimensional Metrology I: Training Kit 2         Dimensional Metrology I: Training Kit 3         Dimensional Metrolo....

Gear Trains Apparatus

EEELAB14139

This apparatus is used to demonstrate belt drives, wheel and disk drives, and gear trains. Basic terminology and relationships, e.g. the transmission ratio, direction of rotation reversal, reference circle and modulus, the function of intermediate gears, and so on can be clearly demonstrated. A solid frame made of anodised aluminium section forms the base for the unit. The bearings for the....

Gear Trains Model

EEELAB14140

This benchtop unit conveys the relationship between the number of gear teeth on spur gears and the transmission ratio of gear trains. The unit consists of a metal base plate with a fixed axle and a rail made of steel. Two further axles can be clamped to the rail in any position. In this way it is is possible to construct one and two stage gear trains with any combination of gears. By und....

Ship Vibration Apparatus

EEELAB14141

used to investigate the dynamic behaviour of a ship structure. It therefore allows the first steps in the area of experimental vibration analysis or modal analysis.   Experimental vibration analysis is an indispensible element of modern shipbuilding development activity. This trainer allows the natural frequencies and modes of the model ship to be measured and recorded. The ....

Crank and Connecting Rod Apparatus

EEELAB14142

This experimental unit demonstrates the conversion of smooth rotary motion into reciprocating motion.   The input angle is set on a ball bearing mounted crank disc made of anodised aluminium and read off on an angle measuring scale integrated into the base plate. A millimetre scale is fitted for the outlet stroke. The crank radius can be adjusted in three positions. ....

Slotted Link Apparatus

EEELAB14143

The experimental unit is used to generate and investigate pure harmonic reciprocating motion.   An anodised aluminium disc used as crank is mounted on ball bearings on a white plate. This disc has a pointer so that the input angle can be exactly read on the integrated angle measuring scale. The crank pin can be set at different radii on the disc. The slider crank is attached to ....

Four Bar Chain

EEELAB14144

Using the four bar chain model, rotary motion is converted into oscillatory motion. An anodised aluminium disc is mounted on ball bearings as a crank. The disc has a scale so that the input angle can be exactly measured. The crank pin can be set at different radii on the disc. The connecting rod and the oscillating lever, made of black anodised aluminium, can be connected together in diff....

Whitworth Quick Return Apparatus

EEELAB14145

Whitworth's quick return is used to generate uneven reciprocating motion with slow feed and quick return. This table model clearly demonstrates the transmission behaviour of such a layout. The input angle is set by turning the crank. The output stroke is read on a ruler on the slider. The transmission components are manufactured in aluminium. All axles are equipped with ball bearin....

Hooke's Coupling Apparatus

EEELAB14146

The table model demonstrates the transmission of angular motion to joint shafts, the related gimbal error and how this error can be rectified using Hooke's couplings. The model consists of two Hooke's couplings that are connected by a split intermediate shaft. The deflection angle of both joints can be set individually and read on the scales. Drive is achieved by turning a....

Ackermann Steering Demonstrator

EEELAB14147

The objective of this kinematic model is to explain the special features of the Ackermann steering mechanism. The lead angle of a steering trapezoid is determined as are the disadvantages of incorrectly adjusted track rods. The units consists of two levers, an intermediate steering rod, two track rods and two track rod arms. The indicators attached to these rotate with the arms and indicat....

Experimental Set Free Vibration of a Bar

EEELAB14148

The bending bar in can be mounted vertically (standing or hanging) or horizontally into the frame . By varying the free clamping length or moving additional weights, the natural frequency of the bar is changed. The bar is deflected manually to start damped vibrations. A non-contact position sensor measures the corresponding amplitudes. The additionally required sensor supply module TM 15....

Wheel and Axle Apparatus

EEELAB14149

The model demonstrates in experiments the laws on the formation of an equilibrium of moments in static systems. Two pulleys made of anodised aluminium with different radii are fitted to a steel shaft mounted on ball bearings. Easy to change weight discs can be hung on cords placed around the pulleys. In this way it is possible to quickly make changes to the peripheral force on the pulleys....

Wheel and Differential Axle Apparatus

EEELAB14150

The model demonstrates the conditions of equilibrium on a differential pulley block. Three anodised aluminium pulleys of different diameter are fitted to a shaft mounted on ball bearings. The forces act, on the one hand, directly on the peripheral of the largest pulley, on the other hand, via a loose pulley on two smaller pulleys. Easy to interchange weights permit the l....

Spur Gear Lifting Apparatus

EEELAB14151

The mechanism demonstrates the relationship between the ratio of the number of teeth on spur gears and the transmission ratio of gears. With straightforward experiments, the torque conversion in gear wheel pairs and the efficiency of a gear unit are investigated.   The model is intended for wall mounting. The well-structured instructional material sets out the....

Worm and Wheel Apparatus

EEELAB14152

permits investigations of the torques and the efficiency of the gear unit. The transmission ratio of the gear can be determined. Students learn the basic terminology of gearing in a simple manner: numbers of teeth; modulus; reference circle and axle base.   The worm gear wheel and worm are ball bearing-mounted. The forces are generated by the sets of weights and can be quickly ....

Winch

EEELAB14153

allows to study a winch concerning its lifting velocity and its load transmission. Additionally, the functioning of a back-run safety device is demonstrated. Load transmission and efficiency can be determined by force equilibrium. Both rope drums are ball-bearing mounted. The forces are generated by sets of weights and can be quickly and easily varied.   The model is intended ....

Torsional Vibration System

EEELAB14154

This experimental unit is used to explain torsion and torsional vibration in experiments. Demonstrations and student experiments are both foreseen in equal measures. The core of the experiment is a metal torsion bar. With the aid of chucks, mass discs of varying inertia can be attached to the bar. It this way it is possible to assemble torsional vibrator systems with up to three m....

Universal Vibration System

EEELAB14155

The trainer covers a wide range of topics in mechanical vibration technology. It is mounted on a sturdy, low-vibration frame which is installed on a laboratory trolley with braked wheels. Quick fastening elements for the formed grooves for quick and accurate experimental set-up.   Forced vibration is generated with an electrical motor-driven imbalance exciter. The exciter f....

Free and Damped Torsional Vibrations

EEELAB14156

The experimental set includes three different torsion bars and two different mass discs. An oil damper makes it possible to reduce the amplitude. The components are straightforwardly and accurately placed in slots of the frame on the vibration system Natural frequency of torsional vibration - Effect of torsional stiffness, rotating mass and damping

Sensor Supply Module

EEELAB14157

The sensor supply module is used to provide power to vibrations sensors as or The module provides the necessary power and outputs the corresponding measured signals. Up to four sensors can be connected simultaneously using 7-pole DIN sockets. The analogue measured signals in the range from 1...9 Volts are output on 4mm lab jacks and can be displayed on a measuring instrument or an oscil....

Free and Forced Vibration Apparatus

EEELAB14158

All set-ups of this experimental unit on the theory of vibrations are rapidly and securely assembled on a double profile frame made of aluminium using slot nuts and clamping levers. The oscillator consists of a beam mounted in ball bearings at one end; a helical spring is hung on the other end of the beam. The attachment of springs, the exciter and a damper to a perforated panel permits ....

Compound Pendulum Apparatus

EEELAB14159

The model is used to investigate the oscillation of pendulums. During this process a physical pendulum is compared with a mathematical pendulum. The unit includes a metal bar with additional sliding weights as a rigid pendulum. The suspension point can be adjusted at the knife edge bearing of the pendulum. The length of the thread pendulum included can be easily varied using a clamping d....

Bifilar / Trifilar Suspension Apparatus

EEELAB14160

The model permits oscillations on pendulums with bifilar or trifilar suspension to be investigated. For this purpose a bar, a cylinder, or a hollow cylinder made of galvanised steel can be hung from a wall mounted carrier plate made of aluminium and placed in oscillation. The bodies used in the experiments have strong steel hooks for attachment to the suspension cords. The length of the c....

Torsional Vibration Apparatus

EEELAB14161

The model enables rotary vibration on torsion bars to be investigated. The model consists of a wall mounted base frame made of aluminium. The carrier plate has a strong chuck with the aid of which the torsion bars can be clamped in position. In the same way the mass disc and the mass ring are clamped to the torsion bar using a chuck. The effective length is easy to adjust. &nbsp....

Vibration of Spiral Spring Apparatus

EEELAB14162

A spiral spring made of cold rolled steel is clamped between a ball bearing mounted shaft and a fixed bracket. Two levers are fitted to the shaft diametrically opposite each other. Two sliding weights of metal on the levers can be securely fixed in position using clamping screws. These form the rotating mass with an adjustable moment of inertia. The system is displaced by hand. The angle ....

Static and Dynamic Balancing Apparatus

EEELAB14163

The main element of the benchtop unit is a smooth shaft to which four variable unbalance weights can be attached at any angle or distance. The rotor is supported horizontally in ball bearings and is driven by a speed-controlled motor. The speed is measured electronically and shown on a digital display. For determination of the unbalance weight by measuring the balance of moments ....

Forces at Reciprocating Engines

EEELAB14164

Every reciprocating engine generates mass forces. The mass forces of the oscillating masses can't be compensated completely while the mass forces of the rotating masses are fully compensated. By using several cylinders it is possible that the forces compensate each other. Still, disturbing moments may occur.   The experimental unit TM&....

Vibrations on Machine Foundations

EEELAB14165

An indispensible element of machine design is targeted reduction of vibrations. An elastic, vibration insulating installation of the machine avoids the transmission of harmful vibrations to the surroundings.   The TM 182 can be used to investigate the problems of foundations and vibration isolation using a practical example. To do this, vibrations are generated and mea....

Piston Compressor for TM 182

EEELAB14166

A piston compressor is a typical machine, on which imbalance and oscillating masses generate vibrations. Balancing the “machine” does not adequately reduce these vibrations. In this case, a vibration isolating machine foundation helps to avoid unwanted vibrations from being transmitted to the surroundings.  compressor is used as a model of a “real ma....

Centrifugal Force Apparatus

EEELAB14167

The unit enables the forces exerted on rotating masses to be studied. The core of the unit is a rotating arm with a vertical axis of rotation. Mass bodies made of metal are anchored to the arm in retaining holes. The centrifugal force exerted is transmitted from the arm to a bending bar. The deformation of the bar, which is proportional to the force, is recorded by an electronic measuring....

Coriolis Force

EEELAB14168

When a mass moves relative to the reference system within a rotating reference system, this movement is deflected. This deflection is caused by the Coriolis force, an apparent or inertial force. The Coriolis force plays a crucial role in meteorology and physical oceanography, since it influences the course of air and water currents due to the Earth's rotation.   In engin....

Inertia in Rotational Motion Apparatus

EEELAB14169

his apparatus enables experiments to be performed on rotational motion in general. Weights can be fitted to a rotating rod at marked distances from the centre. A dumbbell-shaped arrangement is thus created; the inertia properties of this arrangement can be changed easily and recalculated. The arrangement is fitted to a low friction ball bearing mounted rotating drum. The system is accele....

Rolling Disc on Inclined Plane

EEELAB14170

This benchtop unit enables basic experiments to be performed on dynamics and is ideal for laboratory experiments. A metal carrier with a three point support is used as an inclined plane for the experiment; the different rotating masses are rolled down this plane. The inclined plane can be precisely aligned using two integrated sprit levels and three bolts. The angle of inclination....

Flywheel Apparatus

EEELAB14171

Using the basic experiments on uniformly accelerated angular motion can be performed. A flywheel mounted in ball bearings is placed in motion by a weight attached to a pulley. The inertia of the flywheel can be determined from the fall time of the weight.   The unit is intended for wall mounting. Due to the clear, robust construction the unit is excellently suited to stude....

Bending Elasticity in Rotors

EEELAB14172

At a certain speed the imbalance forces of a rotating mass can cause part of the machine or the entire machine to vibrate in resonance with bending vibrations. This speed is known as the critical speed. The rotor and shaft on a motor or a turbine, for example, form a system that can resonate. In rapidly rotating machinery this state presents a danger because it can lead to breakage and da....

Whirling Shaft Apparatus

EEELAB14173

The modes of oscillation and resonances of rotors with continuous mass distribution can be clearly demonstrated using this unit. Due to the use of thin, elastic rotor shafts made of high-strength steel, the oscillatory phenomena can be easily understood. A range of shaft diameters and the free choice of the bearing arrangement make it possible to perform a wide variety of experiments. Ad....

Gyroscope

EEELAB14174

The moments generated by the gyroscopic effect can be investigated using this unit. The basic component is a flywheel driven about its own axis. This is mounted together with its drive motor as a yoke and forms the gyroscope. This arrangement is placed in rotation about a vertical axis with the aid of a second motor. The rotational speeds of both motors are electronically regulated and disp....

Centrifugal Governor

EEELAB14175

Centrifugal governors use the properties of centrifugal force to regulate the speed of a machine. Due to centrifugal force, a rotating flyweight mass has the tendency to move away from the axis of rotation and is prevented by counteracting mechanisms. These mechanisms are differentiated into those governors that use weights and those that use springs. Corresponding kinematics cause a def....

Three-Dimensional Display with Geometric Models

EEELAB14176

  three-dimensional display is an educational concept for beginners in technical drawing. A three-dimensional stand which consists of three Plexiglas planes has a receptacle for the precision-manufactured models. The associated view can be inserted on each plane of the stand, enabling a direct comparison between the workpiece and the drawing. ....

Cylindrical Work Samples with Cut-Outs Parallel to Axis

EEELAB14177

The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing.   The  set contains 18 aluminium drawing models. The cylindrical models have cut-outs parallel to the main axis of the model. The models are precision....

Cylindrical Work Samples with Slanted Cut-Outs

EEELAB14178

The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing.   The  set contains 18 aluminium drawing models. The cylindrical models have cut-outs parallel to, and at an angle t....

Prismatic Work Samples with Cut-Outs Parallel to Edges

EEELAB14179

The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing.   The set contains 18 aluminium drawing models. The prismatic models have cutouts parallel to the edges of the model. The models are precisio....

Prismatic Work Samples with Slanted Cut-Outs

EEELAB14180

The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing.   The  set contains 18 aluminium drawing models. The prismatic models have cut-outs parallel to, and at an angle to, the edge....

Bending Device

EEELAB14181

The bending device model forms part of the extensive GUNT course providing an introduction to technical drawing. The didactic approach involves teaching the systematic and transferable learning matter based on an operational mechanism.  presents an eccentrically-operated bending device which can be used to press a clamp profile out of a sheet-metal strip. All parts are ....

Bearing Housing, Casting

EEELAB14182

A bearing housing made from sand-cast aluminium is used in teaching as an example to illustrate the subject of cast parts in technical drawing in a detailed and practical way. comprises two elements: an unmachined cast part, professionally 'polished', as it is delivered from the foundry; and a post-machined cast part additionally presented in the form of a cutaway m....

Drilling Jig for a Casting

EEELAB14183

The model comprises two elements: the actual drilling jig and a cast part representing the workpiece. The cast part is to be drilled with four through-holes using a standard drill. It is clamped in the jig and the drill is fed to it by way of bushes.   Core didactic aspects are reading and understanding technical drawings, standardised and production-oriented dimensioning o....

Drilling Jig for an Annular Disc

EEELAB14184

The drilling jig model forms part of the extensive  course providing an introduction to technical drawing. The didactic approach involves teaching the systematic and transferable learning matter based on an operational mechanism.   All parts, made from steel, are precision-manufactured on CNC machines. The surfaces of the steel parts have a gunmetal fin....

Lever Shears

EEELAB14185

The lever shears model forms part of the extensive  course providing an introduction to technical drawing. The didactic approach involves teaching the systematic and transferable learning matter based on an operational mechanism.   The lever shears model can be considered to be a project enabling interdisciplinary, action-oriented tea....

Safety Catch

EEELAB14186

The safety catch model forms part of the extensive  course providing an introduction to technical drawing. The didactic approach involves teaching the systematic and transferable learning matter based on an operational mechanism.   All parts, made from steel, are precision-manufactured on CNC machines. The surfaces of the steel parts have a gun....

Drilling Jig for Flat Part

EEELAB14187

The drilling jig model forms part of the extensive course providing an introduction to technical drawing. The didactic approach involves teaching the systematic and transferable learning matter based on an operational mechanism.   All parts are precision-manufactured on CNC machines. The surfaces of the steel parts have a gunmetal finish to prevent corrosion.   Comprehe....

Bending Device Assembly Kit

EEELAB14188

The kit contains all the parts required to assemble a functional bending device. The parts are clearly laid out on a base plate. They are grouped into individual assembly sequences. The base plate is covered with a  transparent cover panel on which a graphical representation of the assembly structure is printed. The graphic symbolises standard ....

Drawing Demonstration: Drilling Jig

EEELAB14189

The basis for the course is a drilling jig which can be used to drill holes in a bearing cover. All drilling jig components are clearly laid out on a base plate. It can facilitate the drilling of the workpiece and other small parts. An exploded-view of the jig is printed on the cover to illustrate the construction of the jig.   A quart....

Lever Shears Assembly Kit

EEELAB14190

The kit contains all the parts required to assemble a functional lever shears. The parts are clearly laid out on a base plate. They are grouped into individual assembly sequences. The base plate is covered with a  transparent cover panel on which a graphical representation of the assembly structure is printed. The graphic symbolises standard a....

Lever Press Assembly Kit

EEELAB14191

The kit contains all the parts required to assemble a functional lever press. The parts are clearly laid out on a base plate.   All parts are precision-manufactured on CNC machines and feature standard engineering tolerances and surface finishes. The surfaces of the parts have a gunmetal finish to prevent corrosion.   Multiple trays are stackable, providing for ....

Transient Drainage Processes in Storage Reservoirs

EEELAB14192

Transient drainage processes are taken into consideration when deciding on the dimensions of storage reservoirs. The processes occur for example, in rainwater retention basins and dams.  The main purpose of the rainwater retention basin is to delay the drainage process by temporary intermediate storage. Dams are used as permanent storage reservoirs in applications such as....

Hydraulic Ram � Pumping Using Water Hammer

EEELAB14193

Abruptly interrupting the water flow can cause water hammer in the pipeline. This generally undesired effect is used specifically in special equipment (hydraulic ram) to raise water to a higher level. Unlike conventional pumps, no additional mechanical drive is required here. can be used to demonstrate the formation and effect of water hammer and to study how a hydraulic ram works. The w....

Water Hammer in Pipes

EEELAB14194

Water hammer in pipes is a significant problem in engineering as they can cause severe damage to piping, fittings and system components. Water hammer is caused by the inertia effect of the flowing fluid being subjected to an abrupt changes in velocity, e.g. when rapidly closing a valve. Therefore, knowledge about the emergence of water hammer is an important aspect of designing pipework ....

Water Hammer and Surge Chamber

EEELAB14195

In structures such as hydroelectric power stations, or in systems for supplying water, changes in flow rate result in pressure fluctuations. For example during startup and shutdown of hydraulic machines or by opening and closing shut-off elements. There is a distinction to be made between rapid pressure changes that propagate with the sound velocity (water hammer) and slow pressure change....

Instructional Kit: Assembly with Dowel Pins

EEELAB14196

The practice kit provides the material necessary for students to systematically learn how components can be joined together in a professional way using pins. Both flat and cylindrical parts are pinned together. We recommend that the exercises are carried out in a workshop, as all preparations such as scribing, drilling, clamping, reaming and joining must be carried out in a correct and ....

Instructional Kit: Assembly with Keys

EEELAB14197

This instructional kit provides the necessary material for students to learn systematically how a hub and a shaft can be joined together in a professional way using feather keys. We recommend that the exercises are carried out in a workshop, as all preparations such as filing, drilling, countersinking and tapping must be carried out in a correct and proper manner by the student. &nb....

Instructional Kit: Assembly with Taper Keys

EEELAB14198

This instructional kit provides the necessary material for students to learn systematically how a shaft is joined to a hub or a coupler in a professional way using taper keys. We recommend that the exercises are carried out in a workshop, as all preparations such as filing, drilling, countersinking and tapping must be carried out in a correct and proper manner by the student.   Th....

Instructional Kit: Threaded Fasteners and Lock Washers

EEELAB14199

This training kit provides the necessary material for joining workpieces with threaded joints. In the process, specific influencing factors (e.g. type of bolt locking, bolt length) can be analysed independently of each other. Bolt tightening and breakaway torques are measured using a torque wrench. The workpieces are held securely in a vice during the experiments.   The materia....

Nuts and Bolts Kit

EEELAB14200

This instructional kit is used for demonstration and information purposes. No provision is made for conducting exercises or experiments. The industrially-standard items are clearly laid out, screw-fitted into an aluminium panel. The symbols on the panel show the correct graphical representation as well as the DIN and standard designations of the items concerned.   The kit is cl....

Screw-Locking Devices Kit

EEELAB14201

  This instructional kit is used for demonstration and information purposes. No provision is made for conducting exercises or experiments. Screw-locking devices are presented in the as-fitted position on an aluminium panel. A transparent multi-compartment storage tray holds large numbers of screw-locking devices.   The kit is clearly laid out on a plastic tray. The we....

Visualisation of Flow Fields

EEELAB14202

Fine gas bubbles are perfectly suited to visualising flow fields. Due to  Reynolds scaling, many flow processes that occur in air can also be demonstrated by experiments in water.   The experimental unit HM 133 can be used to visualise laminar and turbulent flow processes in a water channel. Hydrogen bubbles are generated electrolytically at a cathode made of t....

Flow through Packed Columns

EEELAB14203

Packed columns have a variety of uses in process engineering, waste water and air purification and in biotechnical systems. For example, in an adsorption column the two substances can be brought into close contact using the packing. When used as a fixed bed reactor, the packing carries the catalyst necessary for the reaction. Packing is available in the widest variety of shapes and materi....

Potential Flow

EEELAB14204

  The laminar, two-dimensional flow in HM 152 is a good approximation of the flow of ideal fluids: the potential flow. All physical systems described with the Laplace equation can be demonstrated with potential flow. This includes current and thermal flows as well as magnetic flux.   The core element of the HM 152 trainer is a classic Hele-Shaw cell with ....

Visualisation of Different Flows

EEELAB14205

In research and training, flow processes are often considered in simplified models, e.g. in pipe flows, open channel drainage processes or the incident flow of structures.  can be used to visualise flow around bodies, pipe flows and flow phenomena in open channels. Various models are fixed in the flow section. The streamlines are made visible by using injected ink as a contrast ....

Open Wind Tunnel

EEELAB14206

A wind tunnel is the classic experiment system for aerodynamic flow experiments. The model being studied remains at rest while the flow medium is set in motion, and thus the desired flow around the model is generated. is an "Eiffel" type open wind tunnel used to demonstrate and measure the aerodynamic properties of various models. For this purpose, air is drawn in from ....

Boundary Layers

EEELAB14207

During incident flow of bodies fluids such as air "stick" to the surface of the body and form the so-called boundary layer. The kind of flow within the boundary layer - laminar or turbulent - significantly affects the drag. The findings from studying the boundary layer are taken into consideration when designing aeroplanes, vessels and turbo machines.   The exper....

Drag Forces

EEELAB14208

Every body immersed in a flow is subject (besides hydrostatic lift) to a flow-induced force, which depends mainly on the velocity of flow, the size of the body and the shape of the body. The shape of the body is represented by the dimensionless number, the drag coefficient cd.   The goal of scientific study and practical application (e.g. in vehicle construction) is to design t....

Air-Operated Impulse Turbine

EEELAB14209

This demonstration unit is part of an equipment series that facilitated investigations on pneumatically driven turbines. On the HM 270 unit, the characteristic behaviour of an impulse turbine can be investigated. For exact measurements, the table unit is equipped with electronic sensors for recording temperature, speed and torque, the values recorded are indicated on digital displays. Inle....

Air-Operated Reaction Turbine

EEELAB14210

This demonstration unit is part of an equipment series that facilitated investigations on pneumatically driven turbines. On the HM 272 unit, the characteristic behaviour of a reaction turbine can be investigated. For exact measurements the table unit is equipped with electronic sensors for recording temperature, speed and torque, the values recorded are indicated on digital displays. Inlet....

Trainer Centrifugal Pump

EEELAB14211

The trainer is a mobile system with a closed water circuit that is intended both for training in vocational colleges and also for laboratory experiments in higher education.   The system is equipped with a centrifugal pump and various transducers, e.g. the torque on the shaft of the speed-controlled pump motor is measured and indicated on the switch box, as is also the rotatio....

Universal Drive and Brake Unit

EEELAB14212

the core element of a modular equipment series enabling experiments at the most varied engines and machines, e.g. pumps, turbines or combustion engines. The machine under investigation is connected to the via a belt drive. Fasteners couple the and the engine or machine under investigation mechanically.   The main function of the  is the provision of the required drive or ....

Supply Unit for Water Pumps

EEELAB14213

Pumps are work machines and serve to convey incompressible fluids. Depending on their principle of operation, they are divided into dynamic pumps and positive displacement pumps.   In dynamic pumps, the energy is transferred by means of vanes on an impeller. The vanes are shaped in such a way that the flow of the medium around them generates a pressure difference between the i....

Standard Centrifugal Pump

EEELAB14214

Standard type centrifugal pumps represent an economical to manufacture basic model for all possible applications for irrigation and drainage. The pump is fitted to a base plate ready for installation. This is simply slid into the Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, t....

Centrifugal Pump Module with Side Channel Stage

EEELAB14215

Self-priming pumps can start even if there is no column of liquid in the intake pipe. The air drawn in is expelled via a bleed pipe. The pump is fitted to a base plate Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, the pump is connected to the experimental set-up using flexible ....

Multistage Centrifugal Pump Module

EEELAB14216

Multiple stage centrifugal pumps are used if a particularly high head is to be overcome. The pump is fitted to a base plate ready for installation. This can be easily and straightforwardly slide into the mounting on the Basic Module, Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, the pump i....

Centrifugal Pumps: Series and Parallel Connected

EEELAB14217

On series and parallel configurations of pumps, a particularly good analogy to electrical circuits may be formed. The pumps are fitted to a base plate ready for installation. This is slid into the mounting on the HM Basic Module Water Pumps and fixed in place. The pumps are equipped with electronic sensors for the acquisition of the intake and delivery pressure. After filling with water, ....

Side Channel Pump

EEELAB14218

Because of its low weight per unit of power, this type of pump is wide spread in industry. The pump is fitted to a base plate ready for installation. This is simply slid into the Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, the pump is connected to the experimental set-up us....

Lobe Pump Module

EEELAB14219

Lobe pumps are used, when highly viscous liquids have to be transported through pipes. The pump is fitted to a base plate ready for installation. The plate is simply slid into the Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, the pump is connected to the experimental set-up u....

Reciprocating Piston Pump

EEELAB14220

Reciprocating pumps are used, when a high delivery head is required. The pump is fitted to a base plate ready for installation. The base plate is simply slid into the Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. The pump is connected to the experimental set-up using flexible hoses. To be able to interch....

Gear Pump Module

EEELAB14221

Gear pumps are lubricated by the pumping medium itself. One typical example of use is as an oil pump in cars and trucks. The pump used in this application is a special model, which is able to pump water. The pump is fitted to a base plate which is simply slid into the Basic Module Water Pumps and fixed in place. The pump is equipped with electronic sensors for recording intake and deliver....

Vane Pump Module

EEELAB14222

Impeller pumps are used, when high delivery pressure is a must. The pump is fitted to a base plate ready for installation. The plate is simply slid into the Basic Module Water Pumps and fixed in place. The unit is equipped with electronic sensors for recording intake and delivery pressure. After filling with water, the pump is connected to the experimental set-up using flexible hoses. To b....

Oil Pump Supply Module

EEELAB14223

The  is part of an equipment series that facilitates the investigation of a wide range of engines and machines. Different oil pumps can be operated on the supply module and investigated in terms of their characteristic behaviour. The pumps are connected into the experimental set-up using hydraulic hoses with quick action couplings. The flow is adjusted on a pressure valve and re....

Screw Oil Pump Module

EEELAB14224

Screw type pumps are constant pumps. Due to their quietness, they are often used on lifts. The pump is ready for installation and mounted on a base plate, which is slid into the and fixed in place. It is connected into the experimental set-up using hydraulic hoses and connected to the sensors on the supply module. The motor necessary for operated is part of the In conjunction with t....

Gear Type Oil Pump Module

EEELAB14225

Gear pumps are often used as oil pumps in motor vehicles. The pump is mounted on a base plate ready for installation, and is slid into the and fixed in place. Hydraulic hoses are used to connect the supply module and the pump. The sensors on the supply module are connected to the pump. The pump is powered by the In conjunction with the and the the following experiments are possible: ....

Vane Cell Oil Pump Module

EEELAB14226

Vane cell pumps can be operated with constant or adjustable displacement. They are suitable for medium operating pressures. The pump is ready for installation and mounted on a base plate, which is slid into the HM 365.20 and fixed in place. It is connected into the circuit using hydraulic hoses and connected to the sensors on the supply module. The motor required for operation is ....

Cycloide Gear Oil Pump Module

EEELAB14227

Cycloid gear pumps are constant pumps. They have a high efficiency (approx. 90%) and a low noise level. They can be used instead of reciprocating pumps at high operating pressures. The pump is ready for installation and mounted on a base plate, which is slid into the HM 365.20 and fixed in place. It is connected into the circuit using hydraulic hoses and connected to the sens....

Pelton and Francis Turbine

EEELAB14228

Water turbines are turbomachines utilising water power. They convert pressure and flow energy into mechanical energy and mostly are used for driving electrical generators. Water turbines can be divided into impulse and reaction turbines depending on their operating principle.   The accessories contain a Pelton turbine as an example for an impulse turbine and a Francis turbine....

Turbine Supply Unit

EEELAB14229

Together with supply unit can be used to operate a Pelton or Francis turbine, whose characteristic operating behaviours can then be investigated.   The separate turbines from are placed on the working surface of the supply unit and screwed in place. The turbine is connected to the supply unit via a hose. After the water has flowed through the turbine, it flows back into the tank....

Axial-Flow Pump Module

EEELAB14230

Axial propeller pumps are used when large flow rates at small heads are required. The module is part of a series of units for the investigation of engines and machines. By means of the usage of electronic sensors in the entire series, it is possible to use PC data acquisition. The  is equipped with such data acquisition. In addition, it includes a supply tank, sensors for the recor....

Kaplan Turbine Trainer

EEELAB14231

Water turbines are turbomachines which convert water energy into mechanical energy. Mostly, they are used for driving generators for power generation purposes. The Kaplan turbine is a reaction turbine with an axial through flow. It has a high specific speed and is suitable for large water flows and small to medium heads. Therefore, the Kaplan turbine is used as a "classic&qu....

Francis Turbine Trainer

EEELAB14232

The Francis turbine is part of the reaction turbines which convert the pressure energy of the water into kinetic energy in the control device and in the impeller. Francis turbines are used for medium heads. The turbine power is controlled by adjusting the vanes in the control device. In practice, Francis turbines are used in run-of-the-river power stations and in storage power stations. ....

Fluid Mechanics Experimental Plant

EEELAB14233

allows precise investigations of different fluidic problems. The large scale of the experimental plant and the use of industrial components deliver results close to reality. The dimensions of the experimental plant allow sufficient inlet and outlet sections for the flow formation.  consists of several assemblies: a pump station with two differently sized centrifugal pump....

Training System: Level Control, HSI

EEELAB14234

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a level control system.   The experimental set-up is mounted in a housing which also accommodates all the electronics. The transparent level-controlled tank is fed from the storage tank with the aid of a speed-controlled pump. The liquid level is ....

Training System: Flow Control, HSI

EEELAB14235

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a flow control system. The experimental set-up is mounted in a housing which accommodates all the electronics.   A piping system with two flowmeters is supplied with flow by a speed-controlled pump from the transparent storage tank. The rotamete....

Training System: Pressure Control, HSI

EEELAB14236

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a  pressure control system.   The experimental set-up is mounted on a housing which accommodates all the electronics. The pressure tank is charged with compressed air by a diaphragm gas pump. The advantage of the dial-gauge manome....

Training System: Temperature Control, HSI

EEELAB14237

  This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a temperature control system.   The experimental set-up is mounted on a housing which accommodates all the electronics. A metal bar, which is thermally insulated with cladding, is heated or cooled at one end by a Peltier element. Thre....

Training System: Speed Control, HSI

EEELAB14238

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a  speed control system.   The experimental set-up is mounted on a housing which accommodates all the electronics. A transparent protective cover permits safe observation of the experiments. A DC motor drives a shaft with a mass flywheel. ....

Training System: Position Control, HSI

EEELAB14239

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a linear position control system.   The experimental set-up is mounted on a housing which accommodates all the electronics. A transparent protective cover permits safe observation of the experiments. A carriage can be moved by a DC motor via a tooth....

Room Temperature Control

EEELAB14240

This experimental unit aids introduction to industrial control engineering. The objective is to control the temperature in a virtual room. The individual components of this temperature control loop are laid out separately on panels. They are inserted in the frame and interconnected by cables.     The controlled system is a soldering iron. The soldering iron represents ....

Determination of Gear Efficiency

EEELAB14241

unit is a complete test system with drive and brake unit and two different gears. Driving and braking power are calculated to determine the efficiencies. The components used are common in drive technology and therefore closely related to practice.   A three-phase AC motor with variable speed via frequency converter serves as the drive unit. An electromagnetic brake is used as th....

Cam Mechanism

EEELAB14242

Cam mechanisms are used in many areas of technology, such as for valve control in combustion engines. The simple experimental set-up permits quick demonstration of the action principle, and can be used to demonstrate the influence of different cam shapes. The cam follower can work either as a roller tappet, cup tappet, or trailing lever. The stroke is measured using a me....

Cam Analysis Apparatus

EEELAB14243

The allows the dynamic investigation of cam mechanisms, as used in motors for actuation of the valves. The cam mechanism consists of 4 interchangeable cam plates and 2 different tracers. A mass and a spring are used to simulate the valve. In order to demonstrate the so-called "valve wobble", the spring rate, mass and speed are adjustable within broad li....

Demonstrator for Lathe Gearing Layout

EEELAB14244

This clearly laid out gear model has all the key features and properties of a workshop lathe. As the functional elements are open to view, all the functions of the gears can be clearly observed. On this model, the motor drive is replaced by a hand wheel with a disc and scale. The action of the gears is thus slow and completely hazard-free. A removable plotter drum simulates the work piece,....

Dynamic Behaviour of Multi-Stage Spur Gears

EEELAB14245

Gears are employed as a link between drive machine and work machine. They are used to vary torque and speed and to change direction. The aim of dynamic gear analysis is an understanding of the motion sequences and the influence of inertia.   The unit is used to study the dynamic behaviour in single-stage, two-stage and three-stage spur gears during transient operation. &nbs....

Dynamic Behaviour of Multi-Stage Planetary Gears

EEELAB14246

The planetary gear is a special type of gear drive, in which the multiple planet gears revolve around a centrally arranged sun gear. The planet gears are mounted on a planet carrier and engage positively in an internally toothed ring gear. Torque and power are distributed among several planet gears. Sun gear, planet carrier and ring gear may either be driving, driven or fixed. Planetary g....

Cutaway Model: Worm Gear

EEELAB14247

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model: Mitre Gear

EEELAB14248

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model: Spur Gear

EEELAB14249

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to which....

Cutaway Model: Two-Stage Spur Gear

EEELAB14250

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model: Planetary Gear

EEELAB14251

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to which....

Cutaway Model: Variable Speed Belt Drive

EEELAB14252

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model: Control Gear

EEELAB14253

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model: Multiple-Disc Clutch

EEELAB14254

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Cutaway Model Electromagnetic Single Disk Brake

EEELAB14255

range consists of a series of different cutaway models of drive system components. These are all original industrial parts that have been prepared such that individual active parts are clearly visible to the user, but their mechanical functionality is retained in full. Each of the cutaway models is firmly mounted on a base plate to which hand grips are also attached for carrying. Drive is....

Cutaway Model: Pedestal Bearing

EEELAB14256

range consists of a series of different cutaway models of drive system components. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to whic....

Gear Assembly Unit: Simple Drives

EEELAB14257

This laboratory system is used to introduce the basics of gearing and the correct method of assembling drive elements. The programme of exercises enables familiarisation with six different drive implementation and analysis methods: understanding the brief and the drawing, assembly, setting, adjusting, testing, and making calculations.   The flexibility of the set-up and the mod....

Gear Assembly Unit: Combined Drives

EEELAB14258

This laboratory system is used to introduce combined drives and their correct assembly. The programme of exercises enables familiarisation with six different drive implementation and analysis methods: understanding the brief and the drawing, assembly, setting, adjusting, testing, and making calculations.   The flexibility of the set-up and the modularity of the components&....

Gear Assembly Unit: Step and Shift Gears

EEELAB14259

This laboratory system is used to familiarise students with the design and correct assembly of step and shift gears. The programme of exercises enables familiarisation with six different drive implementation and analysis methods: understanding the brief and the drawing, assembly, setting, adjusting, testing, and making calculations.   The flexibility of the set....

Belt Friction Apparatus

EEELAB14260

This experimental unit enables experiments to be performed on belt drives and belt friction. The core of the unit is a cast iron pulley with grooves in its circumference for V-belts and flat belts. The pulley is mounted in ball bearings and is operated with a hand crank. The inertia of the pulley contributes to even rotation. The belts grip the pulley at an angle of contact from ....

Tribology Trainer Base Module

EEELAB14261

Friction refers to the obstruction of movement that occurs between two solid bodies in contact with each other. The resulting friction forces are dependent on the normal force and the friction coefficients of the surface pairing. enables different cases of rolling and sliding friction to be studied. The parameters of a tribological system are recorded and evaluated. The device forms ....

Experimental Module Rolling / Sliding Disc

EEELAB14262

The slip forces between two rotating friction discs in contact can be determined using this accessory module. The unit is intended for operation with the basic module Connection to the basic module is made using a clamped coupling. The slip between the discs is maintained at a constant 4% by a gearbox. The contact pressure can be adjusted in steps (10N) up to max. 80N. This adjustment is....

Experimental Module Optical Elastohydrodynamics

EEELAB14263

The set-up is operated together with the basic module A steel sphere is pressed against the underside of a driven glass disc. The light from a reflected light microscope passes through the glass disc and the film of oil at the point of contact, it is then reflected from the surface of the steel sphere. The thickness of the film of lubricant is determined visually from the colours of the ....

Experimental Module Pin on Disc

EEELAB14264

Using the experimental module, friction forces between a vertical pin and rotating disc can be investigated. The unit is intended for use with the basic module The end of each pin specimen made of steel, aluminium or brass rubs against the rotating, hardened, ground steel disc. The contact pressure between the components can be varied using a lever with weights. The friction force is meas....

Experimental Module Slip / Stick & Friction Vibration

EEELAB14265

Using this experimental module, static friction and sliding friction, and the related friction vibrations and slip-stick effects can be clearly demonstrated. The unit is used in conjunction with the basic module For the experiments, cylindrical weights are placed on a horizontally rotating stainless steel disc. This is prevented from turning by a cord. The cord is coupled to force measuri....

Experimental Module Block on Ring Friction

EEELAB14266

Using this instructional unit, investigations are performed on wear. The unit is intended for operation with the basic module A dog coupling transmits the force from the drive unit. For the experiments, pins made of various materials rub against the external surface of a rotating disc under varying lubrication conditions. Initially a point contact is formed, as the wear increases, this ch....

Radial Pressure Distribution in the Journal Bearing

EEELAB14267

The field of tribology covers all forms of friction. Dry, mixed and fluid friction all occur in journal bearings. Under operating conditions there is completely distinct fluid friction, so that the shaft and bearing shell are separated by a supporting lubricating film. The supporting function of the lubricating film can be described by the pressure distribution in the bearing gap. &n....

Hertzian Contact Apparatus

EEELAB14268

This portable unit demonstrates the characteristics of the contact area in the case of Hertzian contact.   A pressure pad made of rubber is pressed against a transparent plastic plate using a lever. Plate and pressure pad are convex. In this way both circular and also elliptical contact areas can be generated.   The force on the lever is measured....

Pressure Distribution in Journal Bearings

EEELAB14269

In hydrodynamic journal bearings the shaft and the bearing shell are separated from each other during operation by a lubricating film. The supporting function of the lubricating film in the journal bearing can be described by the pressure distribution in the bearing gap.   The unit is used to visualise the axial and radial pressure profile in the journal bearing with hydrodynami....

Friction in Journal Bearings

EEELAB14270

There a many factors of influence concerning the friction states in a hydrodynamic journal bearing. Speed, load, and viscosity are focused in particular. enables to study various factors of influence on friction. The journal bearing consists of an electrically driven journal rotating in a freely movable bearing housing. The transparent bearing housing enables the observation of the displa....

Hydrodynamic Bearing Apparatus

EEELAB14271

The behaviour of a classical journal bearing with hydrodynamic lubrication can be investigated with the apparatus  The experimental capability ranges from the measurement of friction torque under load, to determine the pressure distribution in a journal bearing, to plot a locus curve of a journal and to determine the bearing attitude for different conditions of load and speed. Th....

Thread Efficiency Testing Equipment

EEELAB14272

This benchtop unit is based on the vertical combination of a threaded spindle and a nut. It contains two spindles with trapezoid threads and varying lead. To match these spindles, three long nuts made of different materials with single lead, and a cast iron nut with a double lead are provided. A spring balance with a nylon cord enables a turning moment&....

Screw Tester

EEELAB14273

  The main element of the unit is a slotted, elastically deformable steel block. By tightening the bolt joint, the slotted area is deformed, thereby generating an axial tension force in the bolt. The resulting deformation is recorded by a mechanical dial gauge, and is directly related to the bolt tension force generated. The bolt joint is tightened and slackened using a....

Hydrostatics Trainer

EEELAB14274

Hydrostatics is the study of fluids at rest. Phenomena occurring as a result of hydrostatic pressure are analysed and the force effect determined. Hydrostatic aspects play a crucial role in various areas of engineering, such as in plumbing and domestic engineering, in pump manufacturing, in aerospace and in shipping (buoyancy, load on the sides of a ship).   The HM 115 t....

Plastic Tank with Submersible Pump

EEELAB14275

  Using this simple arrangement, it is possible to provide a supply of water for e.g. if there is no mains water supply where the equipment is to be used.  includes a plastic tank with a powerful submersible pump and connecting hoses.  

Determination of the Settling Velocity

EEELAB14276

The settling velocity of solids in fluids is an important factor in fluid mechanics and process engineering. For example, the settling velocity is the decisive factor when planning sedimentation tanks for water treatment. contains two transparent cylinders for comparative examinations. The two cylinders enable comparing the influence of the sphere diameter, sphere density and different ....

Base Module for Experiments in Fluid Mechanics

EEELAB14277

The series of devices permits a varied experimental cross-section in the fundamentals of fluid mechanics. The base module HM 150 provides the basic equipment for individual experiments: the supply of water in the closed circuit; the determination of volumetric flow rate and the positioning of the experimental unit on the working surface of the base module and the collection of....

Pipe Friction for Laminar / Turbulent Flow

EEELAB14278

  During flow through pipes, pressure losses occur due to internal friction and friction between the fluid and the wall. When calculating pressure losses, we need to know the friction factor, a dimensionless number. The friction factor is determined with the aid of the Reynolds number, which describes the ratio of inertia forces to friction forces.   HM 150.01 ....

Calibration of Pressure Gauges

EEELAB14279

In the field of metrology, calibration describes a process for detecting deviations in a measuring instrument compared to a reference instrument or universally accepted standard value. This observed deviation is taken into account in the subsequent use of the calibrated measuring instrument and adjusted if necessary. is a device designed as an introduction to the basics of checking and ca....

Plate Weirs for HM 150

EEELAB14280

Sharp-crested weirs are a type of control structure that dam up an open channel in a defined manner. They are often used to determine the discharge of an open channel. contains two different plate weirs as sharp-crested weirs. The two weirs are typical measuring weirs with defined weir openings: in the Thomson weir the opening is triangular; in the Rehbock weir it is rectangular. &....

Centrifugal Pump

EEELAB14281

Centrifugal pumps are turbomachines that are used for conveying fluids. The unit can be used to study a centrifugal pump and to record a typical pump characteristic curve.   The experimental unit includes a self-priming centrifugal pump, a ball valve on the delivery side and manometers on the intake and delivery side. It is driven by an asynchronous motor. The speed is infinitely ....

Hydrostatic Pressure in Liquids

EEELAB14282

The weight of fluids at rest causes a pressure that is known as hydrostatic pressure or gravitational pressure. This pressure acts on any area that is in communication with the fluid, exerting a force that is proportional to the size of the area.   The effect of hydrostatic pressure is highly important in many fields of engineering: in shipbuilding, in hydraulic engineering whe....

Stability of Floating Bodies

EEELAB14283

In hydrostatics, the metacentre is an important point to be considered when assessing the stability of floating bodies. Stability refers to the ability of a ship to right itself from a heeled position. The metacentre is the intersection of the buoyancy vector and the vessel's axis of symmetry at a certain heel.   The unit can be used to study the stability of a floating ....

Bernoulli's Principle

EEELAB14284

Bernoulli's principle describes the relationship between the flow velocity of a fluid and its pressure. An increase in velocity leads to a reduction in pressure in a flowing fluid, and vice versa. The total pressure of the fluid remains constant. Bernoulli's equation is also known as the principle of conservation of energy of the flow.    The e....

Measurement of Jet Forces

EEELAB14285

During deceleration, acceleration and deflection of a flowing fluid, there is a change of velocity and thus a change in momentum. Changes in momentum result in forces. In practice, the motive forces are used to convert kinetic energy into work done, for example in a Pelton turbine.   In jet forces are generated and studied with the aid of a water jet that acts on and is diverte....

Horizontal Flow from a Tank

EEELAB14286

  Hydrodynamics considers the relationship between the trajectory, the outlet contour and the outlet velocity during flow from tanks. These considerations have practical applications in hydraulic engineering or in the design of bottom outlets in dams, for example.  allows a user to study and visualise the profile of a water jet. Additionally, the contraction coefficient....

Visualisation of Streamlines

EEELAB14287

The laminar, two-dimensional flow in is a good approximation of the flow of ideal fluids: the potential flow.  can be used to visualise streamline fields for flows around drag bodies and flow through changes in cross-section. The streamlines are displayed in colour by injecting a contrast medium (ink). Sources and sinks are generated via four water connections in the bottom glass ....

Losses in a Pipe System

EEELAB14288

 Pressure losses occur during the flow of real fluids due to friction and turbulence (vortices). Pressure losses in pipes, piping elements, fittings and measuring instruments (e.g. flow meter, velocity meter) cause pressure losses and must therefore be taken into account when designing piping systems.  allows to study the pressure losses in pipes, piping eleme....

Vertical Flow from a Tank

EEELAB14289

Pressure losses in the flow from tanks are essentially the result of two processes: the jet deflection upon entry into the opening and the wall friction in the opening. As a result of the pressure losses the real discharge is smaller than the theoretical flow rate.  determines these losses at different flow rates. Different diameters as well as inlet and outlet contours of the op....

Methods of Flow Measurement

EEELAB14290

Measuring the flow rate is an important aspect in measurement technology. There are several ways to measure the flow of fluids in pipes.   With students can familiarise themselves with various methods for measuring flow in the pipe system and apply them in practice.   The experimental unit contains different measuring instruments to determine the flow rate. These i....

Vortex Formation

EEELAB14291

In fluid dynamics, a vortex is a circular flow of a fluid caused by sufficiently large velocity gradients. In practice, this can be observed when water flows out of a basin into a pipe or when two fluids with different speeds meet each other.   The experimental unit allows you to produce and study free and forced vortices.   The experimental unit has a transparent tank ....

Series and Parallel Connected Pumps

EEELAB14292

  In complex systems, pumps can be connected in series or in parallel. In series operation the heads are added together and in parallel operation, the flow rates of the pumps are added.   With pumps are studied individually, in series and in parallel.   The experimental unit contains two identical centrifugal pumps and an intake tank with overflow. The overflow....

Osborne Reynolds Experiment

EEELAB14293

The Osborne Reynolds experiment is used to display laminar and turbulent flows. During the experiment it is possible to observe the transition from laminar to turbulent flow after a limiting velocity. The Reynolds number is used to assess whether a flow is laminar or turbulent.   With HM 150.18 the streamlines during laminar or turbulent flow are displayed in colour wit....

Operating Principle of a Pelton Turbine

EEELAB14294

Water turbines are turbomachines utilising water power. The Pelton turbine is a type of free-jet or impulse turbine; such turbines convert the pressure energy of water into kinetic energy entirely in the control device. During the conversion, the water jet is accelerated in a nozzle and directed onto the vanes of the impeller tangentially. The water jet is redirected by approximately 180&....

Operating Principle of a Francis Turbine

EEELAB14295

Water turbines are turbomachines utilising water power. The Francis turbine is a type of reaction turbine which converts the pressure energy of the water into kinetic energy in the control device and in the impeller. The water is fed in the control device by means of a spiral housing. The flowing water is accelerated in the control device by the adjustable guide vanes and directed onto t....

Visualisation of Streamlines in an Open Channel

EEELAB14296

can be used to visualise flow around drag bodies and flow phenomena in open channels.   Either a drag body or weir is fixed in the experimental flume. The streamlines are made visible by injecting a contrast medium. The experimental flume is made of transparent material so that the streamlines and the formation of vortices can easily be observed. The water lev....

Energy Losses in Piping Elements

EEELAB14297

When water flows through a pipe system, the flow resistances causes pressure losses to occur at pipe fittings and valves and fittings.   The unit can be used to investigate and visualise the pressure losses in pipe elements. The experimental unit can be used to assess how different pipe geometries affect the flow.   The experimental unit comprises a pipe section contai....

Floating Bodies for HM 150.06

EEELAB14298

The ccessory includes two transparent floating bodies with different frame shapes (hard chine and round bilge). The floating bodies are used together with and extend this device's range of experiments.   The design of the floating bodies and the possible experiments are similar to those of comparison of two different frame shapes: hard chine and round bilge

Open Channel and Closed Channel Flow

EEELAB14299

  is used to demonstrate different flow processes at different control structures in the open channel. In the closed channel, pressure components in a pipe are determined.   The trainer includes a transparent experimental flume with upper limit, a height-adjustable sill and a closed water circuit. The water level in the experimental section is set with an adjustable pl....

Corrosion Experimental Unit

EEELAB14300

Corrosion damage to metallic components causes considerable economic and technical damages. The issue of corrosion and corrosion protection therefore plays an important role in technical training.   The allows a variety of factors that influence corrosion processes to be investigated in parallel. Eight glass vessels are available to do this. They allow different materials to be....

Multi-Head Diaphragm Pump

EEELAB14301

Multi-head diaphragm pumps are used for metering in many process engineering areas. In food technology, for example, multi-head diaphragm pumps enable the precise observation of mixing ratios in order to ensure consistent high quality of the products. In addition, diaphragm pumps are leak-free and thus prevent germs from entering the piping system. This ensures that the high hygiene re....

Rotary Vane Vacuum Pump

EEELAB14302

Vacuum plays an important role in process engineering. It can, for example, be used to siphon off various fluids or for vacuum filtration. In vacuum distillation, vacuum is used to lower the boiling point and thus be able to separate substances that would decompose at higher temperatures. Another important area is the separation of sorbed substances from the solvent by means of vacuum in....

Change of State of Gases

EEELAB14303

Gas laws belong to the fundamentals of thermodynamics and are dealt with in every training course on thermodynamics.   The unit enables two changes of state to be studied experimentally: isothermal change of state, also known as the Boyle-Mariotte law, and isochoric change of state, which occurs at constant volume. Transparent tanks enable the change of state to be observed. Air....

Fundamentals of Humidity Measurement

EEELAB14304

The measurement of air humidity plays an important role in many branches of industry, e.g. during drying or in the air conditioning of buildings and vehicles. There are different measuring methods to determine humidity.     The trainer enables the measurement of air humidity with four different instruments which can be directly compared to each other: two dif....

Fundamentals of Temperature Measurement

EEELAB14305

Recording temperature is one of the basic tasks in metrology. Electric temperature sensors are the most widely used in automation applications but conventional thermometer types are still widely applied in many areas. The experimental set-up covers the full range of temperature measurement methods. As well as non-electrical measuring methods, such as gas- and liquid-filled thermometers an....

Fundamentals of Pressure Measurement

EEELAB14306

  Measuring pressure is important in the engineering industry, e.g. in plant, turbomachine and aircraft construction and in process engineering. Other fundamental factors such as flow rate or flow velocity can also be determined based on a pressure measurement.   The experimental unit enables the user to measure the pressure with two different measuring methods: directl....

Vapour Pressure of Water - Marcet Boiler

EEELAB14307

In a closed system filled with fluid, a thermodynamic equilibrium sets in between the fluid and its vaporised phase. The prevailing pressure is called vapour pressure. It is substance-specific and temperature-dependent.   When a fluid is heated in a closed tank, the pressure increases as the temperature rises. Theoretically, the pressure increase is possible up to the critical po....

Evaporation Process

EEELAB14308

During the generation of vapour, the medium that is to evaporate runs through different flow forms dependent on the heat transfer area. The medium flows into a tube evaporator as a single-phase fluid and exits the tube evaporator as single-phase superheated vapour. In practice, the water vapour generated in big systems is used e.g. for heating plants or machine drives. To design steam gener....

Boiling Process

EEELAB14309

Heating a liquid over a heating surface produces different modes of boiling dependent on the heat flux density. They can accelerate the evaporation process (nucleate boiling) or impair it (film boiling). In practice, a limitation of the heat flux density must be assured in order to prevent damage to the heating surface. This knowledge is applied in practice e.g. when designing steam boile....

Condensation Process

EEELAB14310

Condensation forms when steam meets a medium with a lower temperature than the saturation temperature for the existing partial pressure of the steam. Factors such as the material and surface roughness of the medium influence the heat transfer and thus the type of condensation. In practice, it is usually film condensation. Dropwise condensation only forms when the cooling surface is very s....

Heat Transfer by Convection

EEELAB14311

Convection is one of the three basic types of heat transfer. The heat transport is substance-bound. In the convection process, the whole fluid is moving. So-called bulks of fluid move (and thus transfer heat) from warm zones into cold zones. The different temperatures lead to density differences in the fluid so that a flow develops. In the case of free convection, the density differences ....

Thermal Radiation Unit

EEELAB14312

  The experimental unit contains a blackbody emitter with a thermopile for the investigation of thermal radiation, a light source with luxmeter for illuminance measurements, and absorption plates with thermocouples for the investigation of Kirchhoff's laws. The intensity of thermal and visible radiation can be adjusted. Colour filters and apertures extend the range of exp....

Heat Transfer by Conduction

EEELAB14313

Heat conduction is one of the three basic types of heat transfer. Kinetic energy is transferred between two neighbouring atoms or molecules. The heat transport is not substance-bound. This type of heat transfer is an irreversible process in which the heat is transferred from a higher energy level, i.e. a level with a higher absolute temperature, to the lower level with a lower temperature....

Heat Conduction in Gases and Liquids

EEELAB14314

Heat conduction in physics means the transfer of thermal energy between neighbouring atoms and molecules in a solid or in a fluid at rest. The heat transport is substance-bound. The effect of pure heat conduction is hindered in fluids by convection effects. This can be prevented by enclosing the fluids in gaps.   The experimental unit serves to examine heat conduction properties....

Heat Conduction in Solids

EEELAB14315

The fundamental laws of steady-state thermal conduction in solid bodies can be investigated with this experimental unit. The specimens are arranged between an electrical heater and a water-cooled plate. A Dewar vessel prevents the exchange of heat with the surrounding environment. The specimens are equipped with several temperature measuring points. The heat transfer rate is determined v....

Advanced Conduction Unit

EEELAB14316

  In this experimental unit, a metal test bar is clamped between a heater and a Peltier element as the cooler. The complete arrangement is under an evacuated bell jar. In this way errors due to convection can be ignored and all the heat must flow through the test bar.   The thermal conductivity k can be calculated from the temperature diff....

Thermal Conductivity of Building Materials

EEELAB14317

This experimental unit enables experiments to be performed on steady-state heat conduction in non-metallic materials such as polystyrene, PMMA, cork or plaster in accordance with  Specimen sheets are placed between a heater plate and a water-cooled plate. A clamping device ensures that the clamping pressure and thermal contact are reproducible.   A special sensor me....

Convection and Radiation

EEELAB14318

  Under real conditions, the heat transport between two objects is normally substance-bound, i.e. convection and/or heat conduction, and not substance-bound, i.e. radiation, at the same time. Determining the individual heat quantities of one type of transfer is difficult.   The trainer enables users to match the individual heat quantities to the corresponding type of tr....

Heat Conduction Trainer

EEELAB14319

This unit is used to investigate steady-state and non-steady-state heat conduction processes. An interchangeable cylindrical specimen is fitted between a heat source and a heat sink. The specimen is prefitted with twelve thermocouples distributed along its length. The electrical heat source is controlled electronically. The heat sink is water-cooled.   The temperatur....

Advanced Temperature Measurement Trainer

EEELAB14320

  A wide range of temperature measurements can be performed and compared using this unit.   The thermometers and temperature sensors to be investigated are heated to the same temperature in a tank of water. A second heated tank with an electronic control  system  provides  water  temperatures  up   ....

Thermal Expansion Training Panel

EEELAB14321

The trainer comprises original components as used in heating and sanitation systems and is therefore relevant in practice.  There are six expansion sections. One of the sections is fitted with a compensator. The elongation of the pipes is indicated on dial gauges. A force measuring device enables the expansion force to be determined. - thermal expansion of dif....

Installation Technology: Losses in Different Pipes

EEELAB14322

When flow passes through pipes, pressure losses occur due to the friction between the pipe wall and the water. The pressure loss is directly dependent on the surface roughness of the pipe inner wall, and thus on the material used. In addition, the pressure loss is affected by the flow velocity and the cross-sectional area being flowed through.   The unit makes it possible to stud....

Installation Technology: Losses in Pipe Bends

EEELAB14323

In addition to pressure losses due to pipe friction, pipes through which water flows experience pressure losses at changes in pipe direction. In practice, various changes in pipe direction with different geometries are used in pipe networks. can be used to investigate how different changes in pipe direction made from different materials affect the pipe flow. The pipe elements used are com....

Temperature Measurement Training Panel

EEELAB14324

Four measuring sections with different thermometers can be individually selected using ball valves. The temperatures measured using the resistance thermometer and the thermocouple are displayed digitally. The bimetallic dial and liquid-in-glass thermometers are direct indicating instruments.   The response of the measuring devices for different flows can be investigated. ....

Three-Way Mixing Valve Training Panel

EEELAB14325

  The trainer was designed for heating and plumbing trainees.   A three-way mixing valve in a heating system controls the circulation and feed flow temperature of the water flowing in the heating system. A pump circulates the water in the pipe system. The differential pressure across the pipe system is limited using a relief valve. Bimetallic thermometers indicate ....

Four-Way Mixing Valve Training Panel

EEELAB14326

The trainer was designed for heating and plumbing trainees.   The four-way mixing valve in a heating system controls the circulation and feed flow temperatures of the water flowing in the heating system and the boiler return flow temperature. It is possible to add the hot water required and to connect radiators. The differential pressure across the pipe system is limited us....

Circulating Pumps Training Panel

EEELAB14327

The trainer contains a pipe system with two circulating pumps. It is possible to switch between series and parallel operation using ball valves.   Two rotameters with different measuring ranges are provided for the measurement of the flow rate. Manometers indicate the pressure at all relevant points in the system. The temperature can be read on a bimetallic thermometer. ....

Domestic Heating Circuit Training Panel

EEELAB14328

A pump circulates water through four radiators. The temperature of the radiators is set using thermostatic valves.   A digital controller keeps the room temperature constant by driving the four-way mixing valve. This valve sets the temperature of the boiler return flow and the feed flow. Cold water connections enable the heat generated to be dissipated. The differential pressure....

Safety Devices Training Panel

EEELAB14329

An electrically heated pressure vessel is mounted on the panel of the trainer. The vessel can be filled via different pipe sections. One pipe section is equipped with a system of safety devices for protecting a sealed water heater. The pressure vessel is also equipped with a thermal discharge safety device that discharges to a blow-off pipe.   When the pressure or temperature le....

Expansion Vessel Training Panel

EEELAB14330

Using this trainer the function of a normal expansion vessel is examined and a pressure-volume characteristic recorded. The expansion vessel is filled with water from a supply tank.   The pressure is generated using a small compressor and adjusted using a pressure regulating valve. The amount of water taken up by the expansion vessel is read on a scale on the supply tank. ....

Installation Technology: Losses in Straight Pipes

EEELAB14331

The pressure curves of  fluids in motion and fluids at rest in pipes are fundamentally different from one another. For the same supply pressure, losses occur in flowing fluids due to the pipe friction; these losses manifest themselves as pressure losses. In fluids at rest the static pressure in horizontal pipe elements is constant. visualises the pressure curve of flowing and stat....

Radiator Training Panel

EEELAB14332

The panel contains a pipe system with four radiators. Each radiator has an air bleed, a thermostatic valve and lockshield valve.   Rotameters indicate the flow rate through each individual radiator and for the entire system. Connections for cooling water make it possible to dissipate the heat supplied by the hot water. All water connections are made using quick-release coupl....

Installation Technology: Losses in Valves and Fittings

EEELAB14333

Pressure losses occur in pipe systems as a result of friction and turbulence. In practice, the use of shut-off valves and fittings causes pressure losses that need to be taken into consideration when designing pipe networks.   The unit can be used to investigate the pressure losses of different shut-off valves and fittings. The pipe elements used are commercially standard compo....

Installation Technology: Losses in a Pipe System

EEELAB14334

When water flows through a pipe system there are resistances as a result of changes in direction, valves and fittings and pipe friction. The flow resistances are directly dependent on the geometry of the pipe elements and the number and type of fittings. In addition, the flow velocity plays a key role in the occurrence of pressure losses.   The unit can be used to investigate and ....

Central Heating System

EEELAB14335

The trainer contains two independent heating circuits that are equipped with a three-way mixing valve and a four-way mixing valve.   The heat provided by an electric boiler can be dissipated via four different radiators. To investigate the full load behaviour of the boiler over an extended period, a plate heat exchanger is fitted in the domestic water circuit. The system has....

Hydronic Balancing of Radiators

EEELAB14336

  Hydronic balancing is used to limit the amount of water which is calculated for each radiator. Balancing ensures that all radiators can be supplied with hot water at all operating points according to their thermal requirement. The balancing is performed using adjustable lockshield valves.   The trainer uses commercially available components to implement three heat....

Oil Burner Demonstrator

EEELAB14337

The unit is equipped with an oil burner. The oil pressure at the burner, the combustion chamber temperature, measured with a thermocouple, and the preheat temperature of the oil are indicated on an additional digital measuring unit. A small oil tank is fitted on the lower shelf of the frame.   The heating boiler features a viewing window for observing the flame. The heat gener....

Domestic Heating Boiler

EEELAB14338

Different operating points can be investigated by changing the oil pressure after the preset boiler water temperature has been reached.   An integrated hot water circuit with plate heat exchanger simulates the heating circuit in a house. The heat generated can be dissipated via cooling water connections, enabling continuous operation. The heat transferred can be calculated.....

Domestic Water Heating System

EEELAB14339

The unit features a viewing window built into the side of the boiler which enables the flame to be observed. The immediate results of different burner settings are directly visible. The unit contains a heatable domestic water tank as a second load. The system is equipped with all stipulated safety devices. All water circuit temperatures and flow rates together with the oil pressure and ....

Hot Water Generator

EEELAB14340

The hot water generator is the supply unit for the trainers and  A complete domestic heating system can be set up together with and/or All components are commercially available and have a high practical relevance.   The boiler together with oil burner, burner control and necessary safety devices is the main element of the supply unit. An oil tank with pump and safe....

Comparison of Different Heating Types

EEELAB14341

A complete domestic heating system can be set up using the trainer together with a hot water generator, e.g. HL 353. Hot water passes through the radiators and heats the room air.  contains two heating circuits. Both circuits are equipped with commercially available heating technology control devices. Each heating circuit contains a circulating pump. A digital, tempera....

Heat Distribution and Control in Heating Systems

EEELAB14342

A complete domestic heating system can be set up using the trainer together with a hot water generator, e.g. Hot water passes through the radiators and heats the room air. contains two heating circuits. Both heating circuits are equipped with commercially available heating technology control devices. Each heating circuit contains a circulating pump.   The simple heating ci....

Demo Unit, Gas Burner

EEELAB14343

The demonstrates the basic functioning of an original gas burner and its typical behaviour in case of faults. Standard industrial components are used. All operating states of the burner are simulated, allowing this demo unit to be operated without gas and flames. The unit is therefore totally non-hazardous and has no gas or waste gas lines. On the front panel is a graphical representation....

Forced Air Gas Burner Training Panel

EEELAB14344

The trainer contains a commercially available forced air gas burner. The elements for a gas controlled system are combined into one compact fitting.   The burner function is simulated using air making it possible to use the unit in training rooms without hazard. The compressed air is supplied by a small integrated compressor.  familiarisation with components fo....

Oil Tank Safety Trainer

EEELAB14345

The trainer contains all the stipulated safety fittings and tank protection devices. The double-walled oil tank includes filling and outlet devices. Indicators such as a level gauge and a leak detector are fitted to a metal panel.   The system is fully functional so it is possible to use it for the supply of oil to laboratory equipment as well as performing the tests and ....

Safety & Control in Heating Systems

EEELAB14346

Using the trainer various safety and control devices can be investigated and evaluated. Typical industrial components are used. The measured values are transmitted directly to a PC via USB. The data acquisition software is included.  * safety valve   * quick-action ventilating valve   * safety pressure cut-out   *....

Instantaneous Gas Heater

EEELAB14347

The housing and heat exchanger of the instantaneous heater have been removed to clearly show the internal components. For safety reasons, the trainer is operated with air. Burner flames are simulated using an array of LEDs.   A diaphragm pump with pressure regulator generates the compressed air required for operation at the correct admission pressure. All the necessary saf....

Domestic Gas Supply Training Panel

EEELAB14348

The experiments are performed with air. A compressed air connection with reservoir and pressure reducing valve are included on the panel.   The trainer has two pipe circuits that can be individually selected. Various leaks can be simulated in one gas line. The other line represents a normal gas supply pipe. A gas meter is fitted in each line. Typical industrial comp....

Training Panel Function of Gas Heater

EEELAB14349

The is used to illustrate the functioning of a gas combination boiler. The main components of the gas boiler are clearly arranged on a panel to allow better understanding. A process schematic also illustrates the function. The allows demonstration of a heating circuit and representation of domestic water heating. A plate heat exchanger is used to simulate a radiator. Cold water is fed th....

Domestic Heating System Control Training Panel

EEELAB14350

The trainer clearly demonstrates the function of a heating controller. The electronic controller, room thermostat and mixing valve are real components. The water, indoor and outdoor temperatures are set using potentiometers. Lights indicate the function of the pumps and the boiler.   The components are clearly laid out on the process schematic to show their relationships. The s....

Efficiency in Heating Technology

EEELAB14351

The trainer contains a complete closed heating circuit with circulating pump, electrical heater, convector for dissipating heat, various pipe sections, fittings and safety devices.   The losses of the most important fittings can be determined using seven differential pressure sensors. Control response and energy flux can be plotted using four temperature sensors, a flow rate se....

Air Duct Systems

EEELAB14352

Ventilation systems are used in many areas. They are used to ventilate offices, sports halls, production halls, conference halls etc. These systems consist of an air duct system and often other facilities for the conditioning of room air. There may also be elements for air purification or sound insulation, e.g. filters.   The trainer  examines how the air can be distr....

Ventilation System

EEELAB14353

In building services engineering ventilation systems are used for commercial premises, hospitals, restaurants or conference rooms to ensure the change of air exchange in the individual rooms. The air is heated or cooled by a heat exchanger. demonstrates the operation of a ventilation system and its components. The components used are common in commercial ventilation technology and there....

Control Unit for Ventilation System

EEELAB14354

The trainer is required if the ventilation system is to be used for experiments with room temperature control.   The trainer is connected between the ventilation system and an external source of hot water using quick-release couplings. With this arrangement it is possible to demonstrate room temperature control in ventilation systems.   Only original parts were us....

Exhaust Gas Analyser

EEELAB14355

Power can be supplied either using a rechargeable battery, or from the mains. The unit enables, amongst other aspects, the O2, CO, CO2 and nitrogen oxides in flue gases from boilers to be measured at the same time as the flue gas and combustion air temperature are measured. Along with the display, the portable unit is equipped with a thermal printer and a PC interface.   Meas....

Characteristic Variables of a Radial Fan

EEELAB14356

  Fans are key components of ventilation systems, providing ventilation, cooling, drying or pneumatic transport. For optimum design of such systems, it is important to know the characteristic variables of a fan. investigates a radial fan. This trainer determines the interdependencies between the delivery pressure and volumetric flow rate as well as the influence of the fan speed o....

Two-Stage Axial Flow Fan

EEELAB14357

Axial fans are connected in series in plants to increase the pressure. In theory, connecting two fans in series doubles the pressure increase.   The  trainer allows the investigation of a two-stage axial fan. A measuring device is used to determine the pressure and velocity distribution.   The trainer includes a measuring section with two identical axial fans....

Experiments with a Radial Fan

EEELAB14358

Radial fans are used to transport gases with non-excessive pressure differences. The medium is drawn in axially to the drive shaft of the radial fan and is deflected by 90° by the rotation of the rotor and discharged radially.   The experimental unit provides the basic experiments to get to know the operating behaviour and the most important characteristic vari....

Experiments with an Axial Fan

EEELAB14359

Axial fans are used to transport gases. The medium to be transported is drawn in axially to the drive shaft of the axial fan by the rotation of the rotor. The medium flows through the rotor and is discharged axially behind the rotor.     The experimental unit provides the basic experiments to get to know the operating behaviour and the import....

Experiments with a Centrifugal Pump

EEELAB14360

 Centrifugal pumps are turbomachines which are used to transport fluids. The rotation of the pump impeller generates centrifugal forces. These forces are used to deliver the water.    The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of centrifugal pumps. featur....

Series and Parallel Connected Pumps

EEELAB14361

  In complex systems, pumps can be connected in series or in parallel. In serial operation the heads of the pumps are added and in parallel operation the flow rates (capacities) of the pumps are added.    The experimental unit provides the determination of the characteristic behavior for single operation and interaction of two pumps. features a closed ....

Experiments with a Piston Pump

EEELAB14362

Piston pumps belong to the group of positive displacement pumps. They transport the medium by a reciprocating motion of a piston in the pump working space, called stroke. The stroke creates a suction hence vacuum effect used to deliver the water. Piston pumps are used when high pressures are to be generated. The flow rate of piston pumps is independent of the head and is....

Experiments with a Gear Pump

EEELAB14363

Gear pumps belong to the group of positive displacement pumps with a continuous flow. Two counter-rotating gears transport the medium from the intake side to the delivery side. The transported medium is between the housing and the tooth spaces. The pulsation-free flow increases linearly with speed. These pumps are particularly suitable for the generation of medium-high pressure ....

Experiments with an Axial Turbine

EEELAB14364

The axial turbine operates as a reaction turbine as used in gas tubines and steam turbines. The water flows through a stator where it is deflected and accelerated. Then, the water hits then the blades on the rotor where it delivers kinetic energy and pressure energy and puts the rotor in motion. The water pressure steadily decreases from the inlet to the outlet. 

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Experiments with a Reaction Turbine

EEELAB14365

The conversion of pressure energy into kinetic energy in the rotor is characteristic for reaction turbines.

   The experimental unit is placed upon the base unit The two units together provide the basic experiments to get to know the operating behaviour and the most important characteristic variables of reaction turbines.

  Th....

Experiments with a Pelton Turbine

EEELAB14366

Pelton turbines are types of impulse turbine. They are driven by free jet nozzles. In the nozzles, the water is strongly accelerated. Ambient pressure exists at the nozzle outlet.  

  The experimental unit is placed upon the base unit The two units together provide the basic experiments to get to know the operating behaviour and the most important char....

Base Unit for Turbines

EEELAB14367

The base unit  is required to supply different turbines. Additionally, the base unit enables basic experiments on a centrifugal pump. 

  The closed water circuit of features a water tank and a centrifugal pump with variable speed via a frequency converter. The turbine to be investigated  is placed on the tank cover and is connected to the base u....

Experiments with an Action Turbine

EEELAB14368

  Action turbines operate according to the principle of equal pressure. The static pressures at the inlet and at the outlet of the rotor are equal.

  The experimental unit is placed upon the base unit The two units together provide the basic experiments to get to know the operating behaviour and the most important characteristic variables of action tur....

Experiments with an Action Turbine

EEELAB14369

Radial compressors are used to compress gases. The medium is drawn in axially to the drive shaft by the rotation of the rotor and flows through the rotor rotating at high speed. By means of centrifugal force, the medium is accelerated towards the outer edge and is compressed in this manner.

  The experimental unit provides the basic experiments to get....

Comparison of Positive Displacement Machines and Turbomachines

EEELAB14370

Work machines release absorbed mechanical work to a liquid or gaseous medium. They are divided into positive displacement machines and turbomachine according to their function. For large volumetric flow rates the benefits of turbomachines are predominant, such as centrifugal pumps; for small volumetric flow rates piston engines are more likely to be used.
  The HM 299 t....

Hydraulic Circuit with Centrifugal Pump

EEELAB14371

Hydraulic circuits are designed according to their task and their area of application. Designing hydraulic circuits requires knowledge of flow behaviour and pressure losses in valves and fittings and pumps, as well as characteristics of the pump. A hydraulic circuit can be compared to an electrical circuit. This analogy can be made evident in the HM 300 experimental unit.

Characteristic Curves for Parallel and Series-Connected Pumps

EEELAB14372

In practice, several pumps are often installed either in parallel or in series for economic reasons. When connected in parallel the pumps operate in a common delivery pipe. This requires that the pumps used in each case can achieve the same head. Parallel connections offer the advantage that when demand is low only one pump works and other pumps are switched on as the flow rate increases.....

Comparison of Pumps

EEELAB14373

The experiments familiarise students with various pump types, such as centrifugal and positive-displacement pumps.   The trainer includes two centrifugal pumps, one piston pump as a positive-displacement pump and a self-priming side-channel pump. The side-channel pump works primarily as a centrifugal pump and, depending on liquid level, can also act as a positive-displacement pump.....

Axial-Flow Turbomachines

EEELAB14374

  The core piece of the experimental plant is the axial turbomachine with attached motor/generator. It can be operated either as a pump or turbine. To this end, different sets of paddels are used.   The transparent housing allows a full view of the blades and flow processes. A compressed-air powered equalisation basin can quickly flood the system. Operation under diffe....

Pelton Turbine

EEELAB14375

The Pelton turbine is a type of free-jet resp. impulse turbine which convert the pressure energy of water into kinetic energy entirely in the control device. Pelton turbines are used at large heads and relatively low flow rates. The turbine power is adjusted by means of the nozzle cross-section. In practice, Pelton turbines are used for driving synchronous generators, whe....

Francis Turbine

EEELAB14376

The Francis turbine is part of the reaction turbines which convert the pressure energy of water into kinetic energy in the control device and in the rotor. Francis turbines are used at medium heads and large flow rates. The turbine power is controlled by adjusting the vanes in the control device. In practice, Francis turbines are used in run-of-the river power stations and in stor....

Characteristic Variables of Hydraulic Turbomachines

EEELAB14377

Turbomachines such as pumps and turbines are energy converters. Turbines convert flow energy into mechanical energy and pumps convert mechanical energy into flow energy. can be used to investigate a centrifugal pump. Experiments can be performed on two key water turbine designs: Pelton and Francis turbine, available as accessories   The closed water circuit compr....

Open-Channel Sediment Transport

EEELAB14378

  uses sand as an example to demonstrate important phenomena of bed-load transport in the area near the bottom. Open-channel flow without sediment transport is also possible. Discharge can be subcritical or supercritical.   The core element of the experimental flume with closed water circuit is the inclining experimental section. The side walls of the experimental section....

Hydrographs after Precipitation

EEELAB14379

Hydrographs are an important tool for the representation of hydrological data such as precipitation, groundwater levels or discharges.  produces precipitation of varying duration and intensity. The storage capacity of soils with different saturation is also examined. Using various dewatering is examined it is possible to demonstrate the relationships between precipitation and ....

Separation in Sedimentation Tanks

EEELAB14380

  In sedimentation tanks, solids are separated out of suspensions under the influence of gravity. For this, the density of the solid particles must be greater than that of the liquid.   With the factors influencing the separation process in sedimentation tanks can be investigated. First a suspension of water and precipitated calcium carbonate is prepared in a tank. A ....

Advanced Hydrological Investigations

EEELAB14381

The trainer offers studies in hydrology such as seepage and movement of the water in soils. In addition, river courses and surface water are investigated. Furthermore, sediment transport and siltation are also presented in the context of flow obstacles. Variable precipitation density and areas and different groundwater feed and discharge possibilities allow a wide variety of experiment....

Experimental Flume 86x300mm

EEELAB14382

Hydraulic engineering is concerned with artificial waterways, the regulation of rivers and with barrages, amongst other things. By using experimental flumes in the laboratory, it is possible to teach the necessary basic principles.    The experimental flume HM 160 has a closed water circuit. The cross-section of the experimental section is 86x300mm. The experi....

Experimental Flume 600x800mm

EEELAB14383

The experimental flume is the largest within the product range. The flow velocities that can be achieved in the experimental flume, and the long length of the experimental section, are the perfect conditions for designing your own projects. These projects can be very close approximations of reality.   The experimental section is 16m long and has a cross-section of 600x800mm. The....

Experimental Flume 309x450mm

EEELAB14384

Hydraulic engineering is a crucial part of engineering. How do we achieve the necessary river depth for ships? How does open-channel flow change during flooding? How far upstream do measures such as control structures have an effect? How can the discharge at barrages be calculated? By using experimental flumes in laboratories it is possible to teach the basic knowledge required to unde....

Experimental Flume 409x500mm

EEELAB14385

Hydraulic engineering is an important part of technology. How do you establish the required depth of water for ships? How does open channel flow change during high-water? How far upstream do control structures affect the flow? How do you calculate the discharge at barrages or dams? Experimentals flumes in laboratories enable to teach the fundamentals required to understa....

Studies in Hydrology

EEELAB14386

In civil engineering, studies in hydrology are conducted in connection with the design, construction and operation of hydraulic engineering systems and water management functions. These studies focus on topics such as seepage and flow of water in the soil and the use of groundwater resources.  can be used to study seepage and groundwater flows after precipitation. In particular....

Fundamentals of Sediment Transport

EEELAB14387

  In many real open channels there is sediment transport that affects the flow behaviour. Normally the key component is bed-load transport. HM 166 uses sand to demonstrate important phenomena of bed-load transport in the area near the bottom. The transparent experimental section allows observation of the formation of ripples in the river bed.  consists of a circ....

Ground Water Flow

EEELAB14388

Groundwater flows are taken into consideration in the case of flooding risks, in the use of dewatering wells and the drainage of lakes and polders. An understanding of the hydrological principles of groundwater flow is useful when designing reliable structures such as excavation pits or drainage systems.   HM 167 allows three-dimensional investigations of groundwater ....

Sediment Transport in River Courses

EEELAB14389

demonstrates important phenomena of bed-load transport in the area near the bottom at subcritical discharge. The large dimensions of the experimental section enable the modelling of river courses with and without structure.   The core element of the  experimental flume is the stainless steel experimental section. A sediment layer up to 10cm high covering an area of 5x0,8m....

Visualisation of Seepage Flows

EEELAB14390

A descriptive method in the study of seepage and groundwater flow is the visualisation of the streamlines and their graphical representation as a flow net. The flow net provides information about the seepage of water in dams and sheet piles.   HM 169 can be used to visualise streamlines in seepage and groundwater flow on different models using a contrast medium. Furthe....

Test Stand for Single Cylinder Engines, 7,5kW

EEELAB14391

This test stand measures the power output of internal combustion engines delivering up to 7,5kW. The complete test stand consists of two main elements: The  as the control and load unit and a choice of engine: four-stroke petrol engine   two-stroke petrol engine and two four-stroke diesel engines   air-cooled with direct injection; water-cooled with indirect inj....

Modular Test Stand for Single Cylinder Engines, 2,2kW

EEELAB14392

This test stand measures the power output of internal combustion engines delivering up to 2,2kW. The complete test stand consists of three main elements: The for mounting of the engine and as a control unit, the universal drive and brake unit  as a load unit and a choice of engine: four-stroke diesel engine two-stroke petrol engine and two four-stroke petrol enginesor  ....

Engine Test Stand, 11kW

EEELAB14393

  This test stand measures the power output of internal combustion engines delivering up to 11kW. The complete test stand consists of two main elements: The the control and load unit and a choice of engine: Single-cylinder experimental engine, two-cylinder petrol engine and two-cylinder diesel engine   The main function of the  is to provide the required braking ....

Load Unit, 75kW, for 4-Cylinder Engines

EEELAB14394

This test stand measures the power output of internal combustion engines delivering up to 75kW. The complete test stand consists of two main elements: The  as the control and load unit and a choice of engine:  petrol engine or  diesel engine. The engine to be investigated is connected to the CT 400 using a coupling with jointed shaft.   The m....

Machinery Diagnostic System, Base Unit

EEELAB14395

The machinery diagnostic system can be used to simulate certain types of damage and investigate its effects on the vibration spectrum.   The PT 500 base unit permits vibration measurement exercises (measurement of vibration displacement, velocity and acceleration in the time/frequency range). Field balancing of rigid rotors and alignment of shafts can also be practice....

Laboratory Trolley

EEELAB14396

This laboratory trolley together with the PT 500 base unit permits the construction of a mobile experimental unit. The trolley features two shelves on which measuring equipment and other accessories can be placed. The sturdy trolley structure is manufactured from anodised aluminium section. The shelves are made from anodised aluminium sheet.

Computerised Vibration Analyser

EEELAB14397

The computerised vibration analyser was developed specially to support analysis of machinery diagnosis experiments of the PT 500 series. The analyser can also be used in many other vibration experiments (such as    The system comprises two acceleration sensors, a measurement amplifier with adjustable gain, a USB box and the analysis software.   The....

Brake & Load Unit

EEELAB14398

Many vibration phenomena can only be achieved when the system is under load. The brake and load unit is used to generate vibration as a function of torque, e.g. in toothed gearing mechanisms or electric motors.   It consists of a magnetic particle brake and an electric control unit. The braking torque can be finely adjusted on the control unit. The exciter current ....

Elastic Shaft Kit

EEELAB14399

This accessory set-up enables the response of an elastic rotor to unbalanced excitation to be studied. The subcritical, supercritical and resonance running states can be demonstrated. A comparison of the orbits (path curves) in the subcritical and supercritical range is of particular interest.   The field balancing of elastic rotors is another area which can be investigated. Th....

Crack Detection in Rotating Shaft Kit

EEELAB14400

Cracks due to material fatigue are very dangerous for rotating machines. Early detection of any crack is therefore essential before permanent rupture and often fatal consequences can occur. The crack influences the vibration behaviour of the shaft by changing its rigidity. Using suitable analysis software, this change can be registered and inspection of the machine organised in good tim....

Roller Bearing Faults Kit

EEELAB14401

Vibration analysis is a key tool in estimating the condition of a roller bearing. The slow change in the vibration spectrum provides indications of the remaining life of a bearing and can be used as a criterion for its replacement. The spectral distribution can deliver accurate information on the type and location of the damage.   This accessory set-up contains six roller be....

Couplings Kit

EEELAB14402

Rotating machine elements are interconnected by way of couplings. A coupling exhibiting production or assembly faults generates machine vibrations which can be analysed to give an indication of specific faults or damage.  The accessory set can be used to simulate various faults and investigate their effects on vibration behaviour. The properties of various coupling types can als....

Belt Drive Kit

EEELAB14403

When properly designed, manufactured, and correctly set; belt drives are low-maintenance, low-noise, long-life drive units. It is important that the belt should not vibrate and/or slip.   The accessory set-up can be used to investigate conditions that cause vibration or slip. The effect of disparate elongation on multiple belt drives can be demonstrated by means of individua....

Damage to Gears Kit

EEELAB14404

The accessory set-up is used to simulate typical damage to gears and study its effects on vibration behaviour. Various gear sets with tooth damage are supplied for this purpose. Undamaged gear sets are provided for comparative purposes. The difference between spur toothed and helical gearing can also be demonstrated. The influence of the centre distance and backlash can be studied using....

Crank Mechanism Kit

EEELAB14405

Crank drives are frequently used in compressors and pumps. They cause vibration due to the oscillating masses and forces. Under the alternating stress in the drive mechanism, bearing clearance, for example, can generate shock impacts with high-frequency exciter spectra. In addition, free mass forces generate harmonic vibrations due to their non-linear kinematics.   &....

Cavitation in Pumps Kit

EEELAB14406

Cavitation can play a major role in the vibration of pumps during operation.   With the accessory set, cavitation can be experimentally induced and its influence on the vibration spectrum investigated.   The principal elements of the accessory set are a single-stage centrifugal pump and a storage tank. The pump and tank are interconnected by hoses. ....

Vibrations in Fans Kit

EEELAB14407

Vibration measurements on fans and blowers play a major role in field monitoring operations. In addition to the usual signals caused by bearings and imbalance, the vibrations induced by the fan blades can be measured. The vibrations are induced by inhomogeneous flow fields.   The accessory set induces the vibrations magnetically. Three fan rotors with diffe....

Electromechanical Vibrations Kit

EEELAB14408

Asynchronous motors are in widespread use as drive mechanisms. They too can generate machine vibrations. If there is an asymmetric gap, the circulating magnetic forces induce rotational and bending vibrations. The same applies to partial failure of the electrical windings. In this case, the asymmetrical magnetic field also induces mechanical vibrations.   The accessory set f....

Roller Bearing Faults

EEELAB14410

Vibration analysis is a key tool in estimating the condition of a roller bearing. The slow change in the vibration spectrum provides indications of the remaining life of a bearing and can be used as a criterion for its replacement. The spectral distribution can deliver accurate information on the type and location of the damage. contains six interchangeable roller bearings on which dif....

Assembly Stand for Pumps

EEELAB14411

The individual steps for repairing work machines such as pumps are: removal and installation of pumps for inspection, repair or replacement; aligning the drive and commissioning and checking the pump, e.g. for leaks.   In conjunction with the tank system, theconnecting pipes and one of the four pumps, the assembly stand forms a complete training system for complex piping and pla....

Standard Chemicals Pump

EEELAB14412

The standard pump used here is a centrifugal pump commonly used in the chemical and process engineering industries. The media being carried are often corrosive, toxic, explosive or volatile, or are carried at very high or very low temperatures. This places extreme stress on the pump.   The standard pump is a single-stage spiral casing pump in process configuration. The proces....