SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate between two heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entire power input to the refrigerator. a) Write down or calculate the magnitudes of the Wk, Qu and Q. for one second of operation of the b) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of the refrigerator. c) Calculate the magnitudes of the Wket, Qhnet, and Qenet for one second of operation of the system.
SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate between two heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entire power input to the refrigerator. a) Write down or calculate the magnitudes of the Wk, Qu and Q. for one second of operation of the b) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of the refrigerator. c) Calculate the magnitudes of the Wket, Qhnet, and Qenet for one second of operation of the system.
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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Transcribed Image Text:SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both operate between
two heat reservoirs at 300K and 450K. The power output of the engine is 5,000W, which is the entire
power input to the refrigerator.
a) Write down or calculate the magnitudes of the Wk, Qhe and Q. for one second of operation of the
b) Write down or calculate the magnitudes of the Wk, Qn, and Q. for one second of operation of the
refrigerator.
c) Calculate the magnitudes of the Wkest, Qhnet, and Qenet for one second of operation of the system.
d) Show on a diagram like the one above for problem SL-1 the energy flow for the engine and refrigerator
individually on the left and the net energy flow for the engine-refrigerator system on the right.
e) Does this net result violate the second law of thermodynamics? EXPLAIN your answes.
2.
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