ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2020 Question 75

Question 75

Consider a simple gas turbine (Brayton cycle) and a gas turbine with perfect regeneration. In both the cycles, the pressure ratio is 8 and the ratio of specific heats of working medium is 1.5. The ratio of minimum to maximum temperatureis 0.2 (with temperature in K) in the regenerative cycle. The ratio of the thermal efficiency of the simple cycle to that of tpseneralive cycle is

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