FLOW MEASUREMENT LAB REPORT
The flow measuring apparatus is used to familiarize the students with typical methods of flow measurement of an incompressible fluid and, at the same time demonstrate applications of the Bernoulli’s equation.
The flow is determined using a sudden enlargement, venturi meter, orifice plate and a Rotameter. The pressure drop associated with each meter is measured directly from the manometers.
Water flow measuring apparatus is designed as a free-standing apparatus for use on the hydraulics bench, although it could be used in conjunction with a low pressure water supply controlled by a valve and a discharge to drain. Water enters the apparatus through the lower left-hand end and flows horizontally through a sudden enlargement into a transparent venturi meter, and into an orifice plate, a 90° elbow changes the flow direction to vertical and connects to a Rotameter, a second bend passes the flow into a discharge pipe which incorporates an atmospheric break.
The static head at various points in the flow path may be measured on a manometer panel. The water flow through the apparatus is controlled by the delivery valve of the hydraulics bench and the flow rate may be confirmed by using the volumetric measuring tank of the hydraulics bench.
- To compare the volumetric flow rates recorded and calculated using different flow measuring devices.
- To compare the specific energy loss through each of the devices.
Hydraulic test bench with Flow Measuring Apparatus including:
- Venturi meter
- Orifice meter