Engineering Board Exam Reviewer · Thermodynamics · medium
Water is pumped from 100 kPa to 5100 kPa at a rate of 10 kg/s. Assuming incompressible flow with v = 0.001 m3/kg, what is the ideal pump power?
- 5 kW
- 51 kW
- 50 kW
- 500 kW
Answer
C. 50 kW
Solution
w = v P = 0.001(5100 - 100) = 5 kJ/kg. Power = 10(5) = 50 kW.
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