Orifice Discharge Apparatus.
Orifice Discharge Apparatus Orifice Discharge Apparatus - Orifice is a simple device used to measure fluid flow in pipes The Orifice Discharge Apparatus has been designed to enable students to determine the co-efficient of discharge of sharp edged orifice and nozzles. It consists of a vertically mounted cylindrical transparent plastic water tank. Water is supplied from the hydraulic bench or any closed circuit controlled water supply system. The orifice is fitted in the base of the tank using special fittings flush with the inside surface. The head above the orifice is maintained constant using adjustable overflow pipe and the level is indicated by the level scale. The flow rate through the orifice can be varied by adjusting the level of the overflow pipe suitably and hence the head over the orifice. Water emerging from the orifice is collected in the measuring tank of the hydraulic bench to make actual discharge measurements. A pitot tube with a traversing device is provided to measure the jet diameter and locate the vena contracta to enable determination of contraction co-efficient. The pitot head and the total head over the orifice is measured using manometer tubes fixed adjacent to the tank. A set of four nozzles is also provided in addition to the sharp edged orifice to study the effect of geometry on the co-efficient of discharge. The Orifice Discharge Apparatus is designed to fit into the FM00 Hydraulic Bench or any other standard hydraulic bench models. Adjustable feet are provided to permit accurate leveling of the equipment before use. The complete unit is manufactured from corrosion resistant materials. OPTION: Computer Based Learning Software is included to enable students understand and conduct experiments, tabulate results and plot graphs. The Orifice Discharge Apparatus is an important experimental set-up for any Fluid Mechanics and Hydraulics Laboratory of an educational institution. List of experiments: Study of flow through orifice. Investigation of water jet through orifice. Locating vena contracta in water jets. Determination of co-efficient of velocity for orifice. Determination of contraction co-efficient for orifice. Determination of co-efficient of discharge for orifice. Study of co-efficient of discharge of orifice at various heads over orifice. Study of co-efficient of discharge of different nozzles. Comparison of co-efficient of discharge of orifice and nozzles. Repeat of experiments (1-7) for various nozzles. Important Features and Specifications: Sharp Edged Orifice, 12mm diameter. Cylindrical Plexiglas tank, clear transparent, 300mm diameter, 500mm height, Supported on tripod legs with provision for leveling. Maximum constant head: 420mm. Max. Flow rate: 14lpm. Pitot tube, positioning and traversing unit with micrometer to measure jet diameter and pitot head profiles. Tube manometer, 500mm WC. Computer based learning software is included to enable students understand and conduct experiments, tabulate the results and plot graphs. Options: A self contained unit of Orifice Discharge Apparatus mounted on a mobile platform with a flow controlled closed circuit water circulation unit consisting of centrifugal pump, flow meter, corrosion resistant sheet metal measuring tank and a sump tank will be supplied on request. Orifices and Nozzles of different geometries will be supplied on request. Services Required Water Supply. Electrical Supply, 240 V, single-phase, 50 Hz.
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