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In a gas-turbine plant working on a Brayton Cycle, the air at the inlet of the compressor is at 25C (298.15 K) and 100 kPa. The pressure ratio (PB/PA=PC/PD) is 6.50 and the maximum permissible temperature in the turbine is 800C (1073.15 K). Consider CP = (7/2)R and CV = (5/2)R and n = 1 mol

In a gas-turbine plant working on a Brayton Cycle, the air at the inlet of the compressor is at 25C (298.15 K) and 100 kPa. The pressure ratio (PB/PA=PC/PD) is 6.50 and the maximum permissible temperature in the turbine is 800C (1073.15 K). Consider CP = (7/2)R and CV = (5/2)R and n = 1 mol

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
Problem 1.1MA
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In a gas-turbine plant working on a Brayton Cycle, the air at the inlet of the compressor is at 25C (298.15 K) and 100 kPa. The pressure ratio (PB/PA=PC/PD) is 6.50 and the maximum permissible temperature in the turbine is 800C (1073.15 K). Consider CP = (7/2)R and CV = (5/2)R and n = 1 mol

Determine the following of the ideal air cycle: (adiabatic reversible compression and adiabatic reversible expansion). Express heat and work in Joules.

  • TB and TD; PB, PC, and PD for these conditions
  • Heat supplied (Process BC)
  • Maximum work (WSmax ), minimum work (WSmin) and Wnet
  • Thermal efficiency of the ideal air cycle
  • Thermal efficiency of the air cycle, if the compressor and turbine operate adiabatically but irreversibly with efficiencies and
  • temperatures after the compression and expansion steps

 

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