A steady state and adiabatic pump requires 3 kW of power input to increase the pressure of water to 3.2 MPa when the liquid water enters at 30°C and 300 kPa. Neglect potential and kinetic energy changes to determine the isentropic pump efficiency. a. 71% b. 77% c. 82% d. 88% e. 93% O f. 97%

A steady state and adiabatic pump requires 3 kW of power input to increase the pressure of water to 3.2 MPa when the liquid water enters at 30°C and 300 kPa. Neglect potential and kinetic energy changes to determine the isentropic pump efficiency. a. 71% b. 77% c. 82% d. 88% e. 93% O f. 97%

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter8: Leak Detection, System Evacuation, And System Cleanup

Section: Chapter Questions

Problem 9RQ: In order to remove moisture from a refrigeration system using a vacuum pump, it must be in a...

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A steady state and adiabatic pump requires 3 kW of power input to increase the pressure of
water to 3.2 MPa when the liquid water enters at 30°C and 300 kPa. Neglect potential and
kinetic energy changes to determine the isentropic pump efficiency.
a. 71%
b. 77%
c. 82%
d. 88%
e. 93%
f. 97%

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