Question

In a test of a water-jacketed compressor, the shaft work required is 90 kn-m/kg of air compressed. During compression, increase in enthalpy of air is 30 kj/kg of air and increase in enthalpy of circulating cooling water is 40 kj/ kg of air. The change is velocity is negligible. The amount of heat lost to the atmosphere from the compressor per kg of air is:

Answer 1

Answer:

20 kJ/kg is lost to the surroundings, if it is correct then thanks me i will provide you detailed solution