Method of Flow Measurement
Experiment 3
Method of Flow Measurement
Objective
To demonstrate typical flow measurement devices for incompressible fluids: (1) venturi meter, (2) orifice plate and (3) rotameter.
To compare the difference in flow rate incurred by each of these device.
Overview
In engineering and industrial practice, fluid measurement of many of the variables and properties, such as density, viscosity, pressure, velocity, flow rate and etc is one of the problems most frequently encountered by engineers. It is therefore essential for engineers to be well equipped with knowledge of the fundamentals and existing methods of measuring various fluid properties and phenomena. This apparatus is specially designed to obtain the flow rate measurement by utilizing three basic types of flow measuring techniques, which are float-type flow meter, venturi meter and the orifice meter.
Experimental Procedure
1. Connect measurement lines.
2. Open all valves at pipe section and the six tubes manometer.
3. Switch on the pump and let the water flow for one minute or until all air has been expelled from the pipe work, then switch off the pump.
4. Close both the inlet and flow control valves. Let the vent and drain valves of the six tubes manometer opened.
5. Now immediately close vent and drain valves.
6. Adjust the height of the manometer tubes by slightly opening and closing vent and drain valves until the height of the manometer become 150 mm.
7. Switch on the pump and open inlet valve slowly.
8. Adjust the height of the water in the manometer tubes with the help of flow control valve until you get the difference in levels between each manometer.
9. Record the flow rate shown by the rotameter.
10. Without adjusting any valves, convey the water outlet hose into a container whose capacity is known and record the time taken for the water to fill it up.
11. Record manometer readings in the sample reading table.
12. Record the volume of water
Method of Flow Measurement
Objective
To demonstrate typical flow measurement devices for incompressible fluids: (1) venturi meter, (2) orifice plate and (3) rotameter.
To compare the difference in flow rate incurred by each of these device.
Overview
In engineering and industrial practice, fluid measurement of many of the variables and properties, such as density, viscosity, pressure, velocity, flow rate and etc is one of the problems most frequently encountered by engineers. It is therefore essential for engineers to be well equipped with knowledge of the fundamentals and existing methods of measuring various fluid properties and phenomena. This apparatus is specially designed to obtain the flow rate measurement by utilizing three basic types of flow measuring techniques, which are float-type flow meter, venturi meter and the orifice meter.
Experimental Procedure
1. Connect measurement lines.
2. Open all valves at pipe section and the six tubes manometer.
3. Switch on the pump and let the water flow for one minute or until all air has been expelled from the pipe work, then switch off the pump.
4. Close both the inlet and flow control valves. Let the vent and drain valves of the six tubes manometer opened.
5. Now immediately close vent and drain valves.
6. Adjust the height of the manometer tubes by slightly opening and closing vent and drain valves until the height of the manometer become 150 mm.
7. Switch on the pump and open inlet valve slowly.
8. Adjust the height of the water in the manometer tubes with the help of flow control valve until you get the difference in levels between each manometer.
9. Record the flow rate shown by the rotameter.
10. Without adjusting any valves, convey the water outlet hose into a container whose capacity is known and record the time taken for the water to fill it up.
11. Record manometer readings in the sample reading table.
12. Record the volume of water
References: 1. Robert L. Street, Gary Z. Walters, John K. Vennard. Elementary Fluid Mechanics. 7th Ed. John Wiley & Sons Inc. 2. Anthony Esposito. Fluid Mechanics with Applications. Prentice Hall International Inc. 3. Robert L.Mott. Applied Fluid Mechanics 5th Ed. Prentice Hall International Inc.