Compare and contrast, with the aid of drawings, where appropriate, the design characteristics of orifice plates and venturi tubes. It is desired to measure the flow-rate of a process fluid (density 1000 kg/m3) in a 100 mm internal diameter pipe. The normal operating mass flow-rate is approximately 200,000 kg/hr and the maximum anticipated flow-rate is 250,000 kg/hr. It is proposed to use an orifice plate to measure the flow-rate, but for process reasons the pressure drop across the meter m...
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