Compressors, Gas Turbines and Jet Engines The volumetric efficiency for reciprocating air compressors is about 10 to 40% 60 to 70% 70 to 90% 40 to 60% 10 to 40% 60 to 70% 70 to 90% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines 1 m of air at atmospheric condition weighs approximately 1.3 kg 1.0 kg 2.2 kg 0.5 kg 1.3 kg 1.0 kg 2.2 kg 0.5 kg ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - (1/r) ɣ/ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated h.p. to shaft h.p. in known as Mechanical efficiency Volumetric efficiency Compressor efficiency Isothermal efficiency Mechanical efficiency Volumetric efficiency Compressor efficiency Isothermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of High friction losses Increasing gas temperature Paucity of O2 High specific volume High friction losses Increasing gas temperature Paucity of O2 High specific volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of air compressors is of the order of 20 - 30% 60 - 70% 70 - 90% 40 - 50% 20 - 30% 60 - 70% 70 - 90% 40 - 50% ANSWER DOWNLOAD EXAMIANS APP
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