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. (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 η = 70% and TC = 40°F, what is TH, in °F? (d) If η = 40% and TH = 1027°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. (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 η = 70% and TC = 40°F, what is TH, in °F? (d) If η = 40% and TH = 1027°C, what is TC, in °C?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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.
(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 η = 70% and TC = 40°F, what is TH, in °F?
(d) If η = 40% and TH = 1027°C, what is TC, in °C?
(b) If TH = 500°C, TC = 20°C, and Wcycle = 1000 kJ, what are QH and QC, each in kJ?
(c) If η = 70% and TC = 40°F, what is TH, in °F?
(d) If η = 40% and TH = 1027°C, what is TC, in °C?
Transcribed Image Text:Hot reservoir
at TH
OH
Boundary-
R
cycle
Cold reservoir 2Qc
at Te
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