Determining the process for heat engine machines


Solve the below problem:

Q: Assume a cyclic machine that exchanges 6 kW with a 250oC reservoir and has

a. Q.L = 0 kW, W. = 6 kW

b. Q.L = 6 kW, W. = 0 kW

and Q.L is exchanged with a 30oC ambient. What can you say about the processes in the two cases a and b if the machine is a heat engine?

Repeat the question for the case of a heat pump.

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Mechanical Engineering: Determining the process for heat engine machines
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