A pump in a chilled water system draws 8 kW to pump of 15 kg/s of water at 5 C through a system. The pressure entering the pump is 250 kPa absolute and that leaving is 700 kPa absolute. Determine the pump efficiency and the temperature rise of the water through the pump.

On a average work day more than work place firs are reorted

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.