Projects / Mechanical / Project 28

Flow Measurement Bench: Venturi vs Orifice vs Rotameter

Approx. component budget: Rs. 9,000 - 14,000

Objective

Calibrate a Venturi meter and an orifice meter against a measured flow and compare their discharge coefficients.

What you will build

A tank, a small pump, and a pipe line with a Venturi meter, an orifice plate and a rotameter in series, with U-tube or digital pressure gauges and a collecting tank.

Results you can expect

• Discharge coefficient vs Reynolds number for both meters
• Pressure drop vs flow
• Calibration curve
• Permanent pressure loss comparison

What you will learn

Flow measurement, Bernoulli equation, calibration and uncertainty, widely used in process industries.

Tools and notes

Manometers or pressure sensors, stopwatch, Excel. The Venturi and orifice can be 3D printed or bought as ready-made fittings.

Resume points from this project

• Built and tested Flow Measurement Bench: Venturi vs Orifice vs Rotameter; objective: calibrate a Venturi meter and an orifice meter against a measured flow and compare their discharge coefficients.
• Measured and analysed discharge coefficient vs Reynolds number for both meters and pressure drop vs flow; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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