Answer / Arvind Kumar Tiwari

Orifice plates are used to measure the flow rate of fluids like steam in a pipe. They consist of a flat plate with a circular hole (orifice) that restricts the cross-sectional area of the pipe. The pressure drop across the orifice can be related to the fluid velocity and flow rate using Bernoulli's equation and the coefficient of discharge. While the use of an orifice does decrease the cross-sectional area, it does not directly increase the pressure or velocity of steam flow. Instead, it allows for the calculation of the steam flow rate based on the pressure drop across the orifice.

relation between flow and differential pressure.

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