Flow Meter Demonstration . - Application: Fluid Mechanics Lab Equipments

The Flow Meter Demonstration Unit is a self-contained facility to demonstrate the important characteristics of flow meters. The main elements are a service module and flow meter support stand. A self-priming centrifugal pump draws water from the sump tank in the service module and delivers it to a flow meter test pipe. Industrial type flow meters mounted in test sections can be fitted into the test pipe quickly and easily. These meters have been chosen to give a variety of different metering principles and degrees of sophistication and accuracy. Some of the meters are calibrated directly in units of flow, whilst others involve the use of calibration charts.
The pressure drop across each of the flow meters can be measured by using either the one meter pressurized water manometer or the 0.5 meter mercury manometer supplied. Ported manometer connection valves ensure rapid bleeding of all manometer pipe work. A facility exists to admit air into the hydraulic stream to demonstrate the effect on the meters accuracy. The discharge from the test section is controllable and is fed through a diffuser into the channel of the service module.
Demonstration Capabilities:-
Comparing the use application and limitations of various types of flow meter
Considering the implications of flow meter selection on performance, accuracy, convenience, cost and head loss
Understanding the principles on which different types of flow meter are based
Relating pressure drop across a flow meter to flow rate
Using manometers to measure pressure drop
Investigating the effect of air in the hydraulic stream on flow meter performance
Understanding the application of Bernoullis Theorem
Technical Specifications:-
Maximum flow rate: 2.3 liters/s
Reservoir capacity: 140 liters
Volumetric tank capacity: 40 liters
Nominal bore of pipe work: 38mm
Length of removable test pipe: 750mm
Pump motor rating: 0.55kW
A self-contained apparatus to demonstrate the characteristics of flow meters used in measurement of water flow through pipes or open channels
Service module with reservoir, volumetric measuring tank and pump
Reference turbine flow meter permanently fitted
Metering devices available in various combinations to suit coursework