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In a gas turbine power plant, the compressor work is 500 kJ/kg, the heat supplied is 1 MJ/kg and the turbine work is 800 kJ/kg.The thermal efficiency of plant is: a) 60% b) 30% c) 38% d) 50% |
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Answer» rmal efficiency of plant is 30 % Explanation:GIVEN as :For a gas turbine plantThe compressor WORK = = 500 KJ/KgThe turbine work = = 800 KJ/KgThe heat supplied = Q = 1 MJ/Kg = 1000 KJ/KgLet THERMAL efficiency of plant = ACCORDING to questionThermal efficiency of plant = Or, = Or, = Or, = ∴ = i.e = 30%So, Thermal efficiency of plant = = 30%Hence, The Thermal efficiency of plant is 30 % . Answer |
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