Heat Transfer,Refrigeration and Air Conditioning - Mechanical Engineering Questions and Answers

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Discussion :: Heat Transfer,Refrigeration and Air Conditioning

A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with c_p = 1 kJ/kg)

25 kJ/kg

50 kJ/kg

l00 kJ/kg

125 kJ/kg

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