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 Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Rotor to static enthalpy rise in the stage Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Rotor to static enthalpy rise in the stage ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher pressure ratio per stage Higher average velocities Aerofoil blades are used Larger air handling ability per unit frontal area Higher pressure ratio per stage Higher average velocities Aerofoil blades are used Larger air handling ability per unit frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure) (p₁ - p₂)/2 p₁ p₂ (p₁ + p₂)/2 p₁/p₂ (p₁ - p₂)/2 p₁ p₂ (p₁ + p₂)/2 p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A compressor at high altitudes will require ___ power. More None of the listed here Less Same More None of the listed here Less Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in Reduction in compressor work Maximum work output High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output High thermal efficiency Decrease of heat loss in exhaust ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air) p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ ANSWER DOWNLOAD EXAMIANS APP
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