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1. The working substance for a Carnot cycle is 8 lbm of air. The volume at the beginning of isothermal expansion is 9 cu ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90°F. Find (a) QA, (b) QR, (c) V3, (d) p3, (e) V4, (f) P4, (g) pm, (h) the ratio of expansion during the isentropic process, and (i) the overall ratio of compression.

1. The working substance for a Carnot cycle is 8 lbm of air. The volume at the beginning of isothermal expansion is 9 cu ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90°F. Find (a) QA, (b) QR, (c) V3, (d) p3, (e) V4, (f) P4, (g) pm, (h) the ratio of expansion during the isentropic process, and (i) the overall ratio of compression.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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103#1.  the working substance for a Carnot cycle is 8lbm of air. the volume at the beginning of isothermal expansion is 9cu ft and the pressure is 300 psia. the ratio of expansion during addition of heat is 2 and the temperature of the cold body is 90degree F. find (a)QA, (b) QR, (c) V3, (D)p3 ,(e) V4, (f) p4, (g) pm, (h) the ration of expansion during thge isenthropic process and (i) the overall ration of compression.

1. The working substance for a Carnot cycle is 8 lb of air. The volume at the beginning of isothermal expansion is 9 cu ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90°F. Find (a) Q₁, (b) QR, (c) V3, (d) P3, (e) V4, (f) P4, (g) pm, (h) the ratio of expansion during the isentropic process, and (i) the overall ratio of compression. Ans. (a) 346.4 Btu; (b)-209.1 Btu; (c) 63.57 cu ft; (d) 25.64 psia; (e) 31.79 cu ft; (f) 51.28 psia; (g) 13.59 psia; (h) 3.53; (i) 7.06
Transcribed Image Text:1. The working substance for a Carnot cycle is 8 lb of air. The volume at the beginning of isothermal expansion is 9 cu ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90°F. Find (a) Q₁, (b) QR, (c) V3, (d) P3, (e) V4, (f) P4, (g) pm, (h) the ratio of expansion during the isentropic process, and (i) the overall ratio of compression. Ans. (a) 346.4 Btu; (b)-209.1 Btu; (c) 63.57 cu ft; (d) 25.64 psia; (e) 31.79 cu ft; (f) 51.28 psia; (g) 13.59 psia; (h) 3.53; (i) 7.06
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