1. Two reversible engines operate in series between a high-temperature (TH) and a low-temperature (T.) reservoir. Engine A rejects heat to engine B, which in turn rejects heat to the low-temperature reservoir. The high-temperature reservoir supplies heat to engine A. Let T- 1000°K and T₁ = 400°K and the engine thermal efficiencies are equal. The heat received by engine A is 500 kJ. Determine: a) the temperature of heat rejection by engine A in K, b) the work of engine A and B in kJ, and c) the cycle efficiency.
1. Two reversible engines operate in series between a high-temperature (TH) and a low-temperature (T.) reservoir. Engine A rejects heat to engine B, which in turn rejects heat to the low-temperature reservoir. The high-temperature reservoir supplies heat to engine A. Let T- 1000°K and T₁ = 400°K and the engine thermal efficiencies are equal. The heat received by engine A is 500 kJ. Determine: a) the temperature of heat rejection by engine A in K, b) the work of engine A and B in kJ, and c) the cycle efficiency.
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Transcribed Image Text:1. Two reversible engines operate in series between a high-temperature (TH) and a
low-temperature (T.) reservoir. Engine A rejects heat to engine B, which in turn
rejects heat to the low-temperature reservoir. The high-temperature reservoir
supplies heat to engine A. Let TH= 1000°K and T = 400°K and the engine
thermal efficiencies are equal. The heat received by engine A $ 500 kJ.
Determine: a) the temperature of heat rejection by engine A in K, b) the work of
engine A and B in kJ, and c) the cycle efficiency.
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