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A power plant uses a gas turbine to produce electricity. Assume that the gas-turbine operates on the ideal Brayton cycle has a pressure ratio of 8. The outside air temperature is 27 °C and without preheating, the air is drawn into the compressor. The air compressed in the compressor and its pressure and temperature increase. Thereafter it is supplied into the combustion chamber where its temperature increases to 1023 °C at constant pressure. Thereafter, hot air is drawn into the turbine. By considering the air-standard assumptions, determine (a) the gas temperature at the exits of the compressor and the turbine (b) the back work ratio (c) the thermal efficiency

A power plant uses a gas turbine to produce electricity. Assume that the gas-turbine operates on the ideal Brayton cycle has a pressure ratio of 8. The outside air temperature is 27 °C and without preheating, the air is drawn into the compressor. The air compressed in the compressor and its pressure and temperature increase. Thereafter it is supplied into the combustion chamber where its temperature increases to 1023 °C at constant pressure. Thereafter, hot air is drawn into the turbine. By considering the air-standard assumptions, determine (a) the gas temperature at the exits of the compressor and the turbine (b) the back work ratio (c) the thermal efficiency

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter6: Forced Convection Over Exterior Surfaces
Section: Chapter Questions
Problem 6.14P
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A power plant uses a gas turbine to produce electricity. Assume that the gas-turbine operates on the ideal Brayton cycle has a pressure ratio of 8. The outside air temperature is 27 °C and without preheating, the air is drawn into the compressor. The air compressed in the compressor and its pressure and temperature increase. Thereafter it is supplied into the combustion chamber where its temperature increases to 1023 °C at constant pressure. Thereafter, hot air is drawn into the turbine. By considering the air-standard assumptions, determine

(a) the gas temperature at the exits of the compressor and the turbine

(b) the back work ratio

(c) the thermal efficiency

 

Т, К 1300 3 W. turb qin P = const. 4 'p = 8 2 Jout comp 300 P = const. 1 S
Transcribed Image Text:Т, К 1300 3 W. turb qin P = const. 4 'p = 8 2 Jout comp 300 P = const. 1 S
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