Consider an adiabatic throttling valve with water entering at pressure of 1.5 mpa, a temperature of 150°c and a velocity of 4.5 m/s. determine the velocity at the exit.

So the exit velocity of water is 4.5 m/s

Explanation:

Given that

Water entering pressure = 1.5 MPa

Temperature = 150°C

Velocity = 4.5 m/s

From first law of thermodynamics for open system

Here given that valve is adiabatic so Q= 0

In valve W= 0

Wen also also know that throttling process is an constant enthaply process so

So from above equation we can say that

So the exit velocity of water is 4.5 m/s

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