Saturated liquid water is compressed from 100 kPa (State 1) to 2.5 MPa (State 2) in an adiabatic pump having 85% isentropic efficiency.
(a) Calculate the specific work (kJ/kg) required for the compression of liquid water.
(b) Determine the entropy generation (kJ/kg-K) for the pump. Saturated water vapor is compressed from 100 kPa (State 3) to 2.5 MPa (State 4) in an adiabatic compressor having 85% isentropic efficiency.
(c) Calculate the specific work (kJ/kg) required for the compression of water vapor.
(d) Determine the entropy generation (kJ/kg-K) for the compressor.
(e) Comment on the relative magnitudes of the specific work and entropy generation for the pump and the compressor.