An air-standard cycle with variable specific heats isexecuted in a closed system and is composed of the followingfour processes:1-2 v = constant heat addition from 14.7 psia and 80F inthe amount of 300 Btu/lbm2-3 P = constant heat addition to 3200 R3-4 Isentropic expansion to 14.7 psia4-1 P = constant heat rejection to initial state(a) Show the cycle on P-v and T-s diagrams.(b) Calculate the total heat input per unit mass.(c) Determine the thermal efficiency.

An air-standard cycle with variable specific heats isexecuted in a closed system and is composed of the followingfour processes:1-2 v = constant heat addition from 14.7 psia and 80F inthe amount of 300 Btu/lbm2-3 P = constant heat addition to 3200 R3-4 Isentropic expansion to 14.7 psia4-1 P = constant heat rejection to initial state(a) Show the cycle on P-v and T-s diagrams.(b) Calculate the total heat input per unit mass.(c) Determine the thermal efficiency.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 2RQ: The operating condition for the single compressor in a household refrigerator is the lowest box...

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