A machine using air ( k = 1.4, R = 53.342 ft-lb/lb-R) as the working substance operates on the Carnot cycle. At the beginning of the isothermal expansion, p1 = 300 psia, V1 = 5 cu ft, and t1 = 540 degrees F. The isothermal expansion ratio is 2 ( V2/V1 and V3/V4) and the isentropic compression ratio is 5 ( V4/V1 and V3/V2). Calculate (a) the sink (cold body) temperature, (b) the heat supplied to the cycle, (c) the heat rejected, (d) work, and (e) thermal efficiency.
A machine using air ( k = 1.4, R = 53.342 ft-lb/lb-R) as the working substance operates on the Carnot cycle. At the beginning of the isothermal expansion, p1 = 300 psia, V1 = 5 cu ft, and t1 = 540 degrees F. The isothermal expansion ratio is 2 ( V2/V1 and V3/V4) and the isentropic compression ratio is 5 ( V4/V1 and V3/V2). Calculate (a) the sink (cold body) temperature, (b) the heat supplied to the cycle, (c) the heat rejected, (d) work, and (e) thermal efficiency.
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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A machine using air ( k = 1.4, R = 53.342 ft-lb/lb-R) as the working substance operates on the Carnot cycle. At the beginning of the isothermal expansion, p1 = 300 psia, V1 = 5 cu ft, and t1 = 540 degrees F. The isothermal expansion ratio is 2 ( V2/V1 and V3/V4) and the isentropic compression ratio is 5 ( V4/V1 and V3/V2). Calculate (a) the sink (cold body) temperature, (b) the heat supplied to the cycle, (c) the heat rejected, (d) work, and (e) thermal efficiency.
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