An internally reversible refrigeration device receives a heat flux of 180 kJ/min from a cold region and

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Question:

An internally reversible refrigeration device receives a heat flux of 180 kJ/min from a cold region and requires 1.20 kW to drive. The cyclical machine is inverted, and working as a heat engine, it receives a heat flux of 1400 kJ/min at the same boundary temperature as for the refrigerating machine. Obtain the power produced by the operation of the heat engine, in kW