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As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir at TH Boundary- Cold reservoir at Te R 20 PH Oc W cycle (a) If TH= 1600 K and Tc = 400 K, what is the thermal efficiency? (b) If TH= 500°C, Tc = 20°C, and Wcycle = 1000 kJ, what are QH and Qc, each in kJ? (c) If n = 50% and Tc = 40°F, what is TH, in °F? (d) If n = 40% and TH = 427°C, what is Tc, in °C?

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir at TH Boundary- Cold reservoir at Te R 20 PH Oc W cycle (a) If TH= 1600 K and Tc = 400 K, what is the thermal efficiency? (b) If TH= 500°C, Tc = 20°C, and Wcycle = 1000 kJ, what are QH and Qc, each in kJ? (c) If n = 50% and Tc = 40°F, what is TH, in °F? (d) If n = 40% and TH = 427°C, what is Tc, in °C?

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As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir at TH Boundary- Cold reservoir at Te 1 R 20 PH Oc W cycle (a) If TH= 1600 K and Tc = 400 K, what is the thermal efficiency? (b) If TH= 500°C, Tc = 20°C, and Wcycle = 1000 kJ, what are QH and Qc, each in kJ? (c) If n = 50% and Tc = 40°F, what is TH, in °F? (d) If n = 40% and TH = 427°C, what is Tc, in °C?
Transcribed Image Text:As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir at TH Boundary- Cold reservoir at Te 1 R 20 PH Oc W cycle (a) If TH= 1600 K and Tc = 400 K, what is the thermal efficiency? (b) If TH= 500°C, Tc = 20°C, and Wcycle = 1000 kJ, what are QH and Qc, each in kJ? (c) If n = 50% and Tc = 40°F, what is TH, in °F? (d) If n = 40% and TH = 427°C, what is Tc, in °C?
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