Manufacturers and suppliers of Flow Nozzle for engineering labs worldwide.
Flow Nozzle....
Manufacturers and suppliers of Flow of Bulk Solids from Silos for engineering labs worldwide.
Flow of Bulk Solids from Silos....
Manufacturers and suppliers of Flow of Bulk Solids from Silos for engineering labs worldwide.
This trainer was developed in cooperation with Prof. Dr. Schulze (from Braunschweig / Wolfenbüttel University of Applied Sciences). It permits observation of flow profiles as bulk solids flow out of silos. To that end, two identically shaped silos with transparent front walls and differing hopper wall materials are provided. As well as the influence of the wall material, the influence of the hopper wall angle of inclination on the outflow behaviour can also be investigated. It is possible to verify segregation processes during filling and emptying by means of sampling at the outlet and analysis using a sieve. influence of wall material and angle of inclination of hopper wall on flow profile (mass/funnel flow) and outflow time - segregation processes - arching ....
Manufacturers and suppliers of Flow of Compressible Fluids for engineering labs worldwide.
Compressible fluids change their density due to pressure change in the flow. Flows with velocities less than Ma 0,3 are regarded as incompressible and the change in density is negligible. At higher velocities, the density has to be included in calculations. These conditions must be taken into consideration when designing e.g. turbo compressors, jets and fast planes. The experimental unit is used to investigate air flow in various ranges of velocity. A radial fan with infinitely variable speed control draws in air from the environment. At the intake the air flow is accelerated in a measuring nozzle. Further down the measuring section the air flows through interchangeable measuring objects. Drawing in the air and the arrangement of the measuring objects on the intake side of the fan minimise turbulence when flowing into the measuring objects. All measuring objects are made of transparent material and provide excellent insight into the inner structure. Pressure losses are studied in a pipe elbow, various pipe sections and a nozzle with sudden enlargement. The nozzle with gradual enlargement (de Laval nozzle) provides an introduction to the topic of transonic flow. The volumetric flow rate is measured in an orifice using a differential pressure manometer. The orifice is fitted with four interchangeable orifice disks for different measurement ranges. The fan's characteristic curve can also be recorded by using a throttle valve. The measured values for volumetric flow rate, pressure and speed are displayed digitally. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. - pressure losses in pipes and pipe elbows - flow in convergent/divergent nozzles - supersonic flow in the de Laval nozzle - determine the speed of sound in air - compare calculation methods for incompressible and compressible flow - use complete continuity equation - determine mass flow using nozzle and volumetric flow rate using orifice - record calibration curve for orifice - record fan characteristic curve at different mass flows and speeds ....
Manufacturers and suppliers of Flow Over a Notch for engineering labs worldwide.
Flow Over a Notch....
Manufacturers and suppliers of Flow Over Notches Apparatus for engineering labs worldwide.
Flow Over Notches Apparatus....
Manufacturers and suppliers of Flow Over Weir Apparatus for engineering labs worldwide.
Flow Over Weir Apparatus....
Manufacturers and suppliers of Flow Over Weirs Accessory for engineering labs worldwide.
Flow Over Weirs Accessory....
Manufacturers and suppliers of Flow Properties of Bulk Solids for engineering labs worldwide.
Flow Properties of Bulk Solids....
Manufacturers and suppliers of Flow Properties of Bulk Solids for engineering labs worldwide.
The flow properties of a powder or bulk solid determine how it behaves during handling. For example, material may flow irregularly out of silos, or the flow of bulk solid may come to a stop. In order to avoid these problems in practice, silos can be designed on the basis of measurements using shear testers, such as the Jenike shear tester or a ring shear tester. In a ring shear tester, a bulk sample is contained in a ring-shaped shear cell. A normal force is exerted on the sample by way of a lid. A hanger from which a variable weight is suspended generates this normal force. A motor moves the shear cell relative to the lid in order to apply shear to the sample. For compaction (pre-shearing) the sample is subjected to a large normal force. An electronically amplified force transducer measures the shear forces which are then recorded by data acquisition software over time. After pre-shearing, shearing to failure is executed with a reduced normal force (strength measurement) and likewise recorded by the software. From the shear force characteristics, properties such as the compressive strength and internal friction of the bulk solid can be determined. To determine the density of the bulk solid, the volume of the bulk sample is ascertained by recording the lowering of the lid using a vernier caliper gauge. So as to also take into account the influence of the hopper wall material on the outflow behaviour, a separate measurement is performed with a ring-shaped sample of the wall material. An evaluation software is available to determine the flow properties from the experimental results. The flow properties identified are used to determine the optimum geometry of a silo's discharge hopper. Trainer is provided for practical verification of the design results obtained in terms of mass flow/funnel flow. The ring shear tester and the evaluation software were developed by recording the shear force characteristics of bulk solids - yield locus and wall yield locus design - determination of flow properties * compressive strength * internal friction * density * wall friction angle - determination of the optimum hopper geometry of a bulk solids silo....
Manufacturers and suppliers of Flow Table for engineering labs worldwide.
Flow Table....
Manufacturers and suppliers of Flow Table for engineering labs worldwide.
Flow Table....
Manufacturers and suppliers of Flow Table (10. 12, 30) for engineering labs worldwide.
Flow Table (10. 12, 30)....
Manufacturers and suppliers of Flow through an Orifice for engineering labs worldwide.
Flow through an Orifice....
Manufacturers and suppliers of Flow through Packed Columns for engineering labs worldwide.
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 materials. Observing the desired flow conditions is vital for proper functioning. Wetting, contact time and flow resistance play a key role. These packed column properties can be studied with the HM 136 trainer, and important phenomena such as the wall effect or the flooding point can be demonstrated. The central element of the trainer is the transparent packed column. The pressures in the top, middle and bottom of the column are measured, so that the pressure losses in the fixed bed can be determined. The column can be operated with air or water. When operating with water, the direction of flow can be changed, so that even a fully flooded column can be studied, such as in a fixed bed reactor. Operating the column with air and water in counterflow simulates the application as an absorption column. The packed bed is interchangeable, so that a laboratory's own packing can also be tried out. The experimental unit has its own air and water supply. The closed water circuit consists of storage tank, pump, flow meter and valve. The air supply includes a compressor with flow meter and valve. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. function of a packed column - record pressure loss characteristic curve - compare operating modes * with water * with air * air/water counterflow mode - demonstration of * wall effect * stream formation * loading point * flooding point....
Manufacturers and suppliers of Flow through Particle Layers for engineering labs worldwide.
Flow through Particle Layers....
Manufacturers and suppliers of Flow through Particle Layers for engineering labs worldwide.
Flow through particle layers is widely encountered in process engineering. In reactors, fixed and fluidised beds are subjected to through-flow by liquids and gases. The separation of solids from suspensions by cake and depth filtration is another area of application. With the fluid mechanic principles involved in flow through fixed beds and fluidised beds can be investigated. For the purpose, a fillable test tank made of glass is provided, through which water can be made to flow from both ends. A sintered-metal plate serves as the base for bulk solids. Water from the laboratory water connection flows into the test tank. To investigate flow through fixed beds, the water enters the test tank from the top. It flows through the fixed bed and the sintered-metal plate and passes by way of a distributor to the outlet. The experimental set-up can be modified by means of quick-release couplings. This also enables the flow through the test tank to be reversed and fluidised beds to be investigated. The water flows upwards through the porous sintered-metal plate and the fixed bed. If the velocity of the water is less than the so-called fluidisation velocity, the flow merely passes through the fixed bed. At higher velocities a fluidised bed is formed. The water flows from the head of the test tank into an expansion tank. From there it flows into the outlet. Regardless of the specific set-up, the flow rate is adjusted by a valve and indicated by a flow meter. To determine the pressure loss via the fixed bed or fluidised bed, two manometers with differing measuring ranges are provided. The desired manometer is selected by way of valves. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. - learning the fundamentals of flow through fixed beds and fluidised beds (Darcy) - observation of the fluidisation process - pressure loss dependent on the flow rate, type, particle size and height of the bulk solid - determination of the fluidisation velocity and comparison with theoretically calculated values - verification of Carman-Kozeny equation....
Manufacturers and suppliers of Flow Visualisation Apparatus for engineering labs worldwide.
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Manufacturers and suppliers of Flow Visualisation Apparatus for engineering labs worldwide.
Flow Visualisation Apparatus....
Manufacturers and suppliers of Flow Visualisation Table for engineering labs worldwide.
Flow Visualisation Table....
