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A) A Brayton cycle operating on argon gas has pressure ratio of 8.5. What is the maximum possible thermal efficiency? B) For an engine producing

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A) A Brayton cycle operating on argon gas has pressure ratio of 8.5. What is the maximum possible thermal efficiency? B) For an engine producing 20kW in the turbine and consuming 11kW in the compressor, what is the back work ratio? 46%53%58%62%45%50%55%60%

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