Compressors, Gas Turbines and Jet Engines The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the Rotor to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Stator to static enthalpy rise in the stage ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called Compressor efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency Compressor efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity Vt > Vo V = Uo Vi = Vo U < Vo Vt > Vo V = Uo Vi = Vo U < Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Is the standard practice for big compressors Enables compression in two stages Cools the delivered air Results in saving of power in compressing a given volume to given pressure Is the standard practice for big compressors Enables compression in two stages Cools the delivered air Results in saving of power in compressing a given volume to given pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the cross compounding of the gas turbine plant Both the arrangements can be employed H.P. compressor is connected to L.P. turbine and L.P. compressor is connected to H.P. turbine All are connected in series H.P. compressor is connected to H.P. turbine and L.P. compressor to L.P. turbine Both the arrangements can be employed H.P. compressor is connected to L.P. turbine and L.P. compressor is connected to H.P. turbine All are connected in series H.P. compressor is connected to H.P. turbine and L.P. compressor to L.P. turbine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes ANSWER DOWNLOAD EXAMIANS APP
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