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Unformatted text preview: 3) A gas-turbine power plant operating on an ideal Brayton cycle has a pressure ratio of 8. The gas temperature is 300 K at the compressor inlet and 1300 K at the turbine inlet. Assuming a compressor efficiency of 80% and a turbine efficiency 85% determine: a. The back work ratio b. The thermal efficiency c. The turbine exit temperature 4) Brayton Cycle efficiency increases with increases in pressure ratio and temperature ratio. So, designers want the turbine inlet pressure and temperature to be as high as possible. What determines the maximum allowable pressure and temperature? Due Monday August 2 nd , 10 AM....
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- Summer '07