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July 22, 2022

Isentropic Efficiency of the pump - GATE ME '14 S1

In a power plant, water (density =1000kg/m3 ) is pumped from 80 kPa to 3 MPa. The pump has an isentropic efficiency of 0.85. Assuming that the temperature of the water remains the same, the specific work (in kJ/kg) supplied to the pump is A. 0.34 B. 2.48 C. 2.92 D. 3.43

Answer:

isentropic efficiency of the pump is isentropic work input/actual work input

In a power plant, water (density =1000kg/m3 ) is pumped from 80 kPa to 3 MPa. The pump has an isentropic efficiency of 0.85. Assuming that the temperature of the water remains the same, the specific work (in kJ/kg) supplied to the pump is A. 0.34 B. 2.48 C. 2.92 D. 3.43

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