A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot reservoir at TH= 2000 K and rejects energy Qc by heat transfer to a cold reservoir at Tc= 400 K. For each of the following cases determine whether the cycle operates reversibly, irreversibly, or oes not verify the second law of thermodynamics (make all necessary calculation for each case). a) QH= 1200 kJ and Wcycle = 1020 kJ b) QH= 1200 kJ and Qc = 240 kJ c) Wcycle = 1020 kJ and Qc = 600 kJ d) n = 40%

Elements Of Electromagnetics
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A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot
reservoir at TH = 2000 K and rejects energy Qc by heat transfer to a cold reservoir at Tc= 400 K.
For each of the following cases determine whether the cycle operates reversibly, irreversibly, or
does not verify the second law of thermodynamics (make all necessary calculation for each case).
a) QH= 1200 kJ and Wcycle = 1020 kJ
b) QH= 1200 kJ and Qc = 240 kJ
c) Wcycle = 1020 kJ and Qc = 600 kJ
d) n =40%
Transcribed Image Text:A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot reservoir at TH = 2000 K and rejects energy Qc by heat transfer to a cold reservoir at Tc= 400 K. For each of the following cases determine whether the cycle operates reversibly, irreversibly, or does not verify the second law of thermodynamics (make all necessary calculation for each case). a) QH= 1200 kJ and Wcycle = 1020 kJ b) QH= 1200 kJ and Qc = 240 kJ c) Wcycle = 1020 kJ and Qc = 600 kJ d) n =40%
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