Question

A heat engine is assumed to operate on a Carnot cycle. It receives 600kJ heat from...

A heat engine is assumed to operate on a Carnot cycle. It receives 600kJ heat from a high temperature reservoir at 600oC and rejects heat to a low temperature reservoir at 20oC.

a. Calculate the thermal efficiency of the cycle.

b. What is QL?

c. What is the net work produced by this cycle?

d. Does this process violate Kelvin-Plank statement? Explain.

e. An inventor claimed that he built a heat engine operating between the same reservoirs that give a thermal efficiency of 70%. Comments about his claim.

f. Draw this process on a Ts diagram.

g. If the cycle is reversed and operated as a heat pump, calculate its performance.

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