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(b) Consider a simple ideal Brayton cycle with air as the working fluid. The pressure ratio of the cycle is 7.2, and the minimum and maximum temperatures are 300 K and 1350 K, respectively. Now the pressure ratio is doubled without changing the minimum and the maximum temperatures in the cycle. Assuming constant specific heats for air at room temperature; i. show the initial process and process change in a T-s diagram; ii. calculate the change in the net work output per unit mass; and iii. determine the change in thermal efficiency of the cycle.

(b) Consider a simple ideal Brayton cycle with air as the working fluid. The pressure ratio of the cycle is 7.2, and the minimum and maximum temperatures are 300 K and 1350 K, respectively. Now the pressure ratio is doubled without changing the minimum and the maximum temperatures in the cycle. Assuming constant specific heats for air at room temperature; i. show the initial process and process change in a T-s diagram; ii. calculate the change in the net work output per unit mass; and iii. determine the change in thermal efficiency of the cycle.

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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(b) Consider a simple ideal Brayton cycle with air as the working fluid. The pressure ratio of the cycle is 7.2, and the minimum and maximum temperatures are 300 K and 1350 K, respectively. Now the pressure ratio is doubled without changing the minimum and the maximum temperatures in the cycle. Assuming constant specific heats for air at room temperature; i. show the initial process and process change in a T-s diagram; ii. calculate the change in the net work output per unit mass; and iii, determine the change in thermal efficiency of the cycle.
Transcribed Image Text:(b) Consider a simple ideal Brayton cycle with air as the working fluid. The pressure ratio of the cycle is 7.2, and the minimum and maximum temperatures are 300 K and 1350 K, respectively. Now the pressure ratio is doubled without changing the minimum and the maximum temperatures in the cycle. Assuming constant specific heats for air at room temperature; i. show the initial process and process change in a T-s diagram; ii. calculate the change in the net work output per unit mass; and iii, determine the change in thermal efficiency of the cycle.
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