Multiple Choice. Choose the correct answer and show COMPLETEsolution. (Brayton Cycle)18. An air standard Brayton cycle operates with compression ratio of 6 and temperatureat the start and end of heat addition are 170°C and 820°C. Find the temperature at theend of expansion.a. 261 °Cb. 83 °Cc. 400 °Cd. 990 °C 2P= const.Sconst.2P= const.(b) P-v diagram(a) T-s diagramFIGURE 9-31T-s and P-v diagrams for the idealBrayton cycle.Figure 7S= const. Brayton CycleHeatexchangerFuelCombustionchamberCompressorTurbineCompressorTurbineHeatexchangerFreshExhaustairgasesFIGURE 9-29FIGURE 9-30An open-cycle gas-turbine engine.A closed-cycle gas-turbine engine.

T3=820 0C Compression ratio = 6 Required Temperatures at end of expansion

Answered: standard Brayton cycle operates with…

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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Multiple Choice. Choose the correct answer and show COMPLETE
solution. (Brayton Cycle)

18. An air standard Brayton cycle operates with compression ratio of 6 and temperature
at the start and end of heat addition are 170°C and 820°C. Find the temperature at the
end of expansion.
a. 261 °C
b. 83 °C
c. 400 °C
d. 990 °C

2
P= const.
Sconst.
2
P= const.
(b) P-v diagram
(a) T-s diagram
FIGURE 9-31
T-s and P-v diagrams for the ideal
Brayton cycle.
Figure 7
S= const.

Brayton Cycle
Heat
exchanger
Fuel
Combustion
chamber
Compressor
Turbine
Compressor
Turbine
Heat
exchanger
Fresh
Exhaust
air
gases
FIGURE 9-29
FIGURE 9-30
An open-cycle gas-turbine engine.
A closed-cycle gas-turbine engine.

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