Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.99 0.9 0.75 0.85 0.99 0.9 0.75 0.85 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using Multistage compression Cold water spray Fully insulating the cylinder Both (A) and (B) above Multistage compression Cold water spray Fully insulating the cylinder Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be 1.00 kg/cm² 1.06 kg/cm² 0.53 kg/cm² 1.03 kg/cm² 1.00 kg/cm² 1.06 kg/cm² 0.53 kg/cm² 1.03 kg/cm² 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 × p₂ p₂ = p₁/p₃ p₂ = p₃/p₁ p₂ = p₁ × p₃ p₂ = p₁ × p₂ p₂ = p₁/p₃ p₂ = p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Standard air is the air at ___ and relative humidity of 36 percent. 1 bar and 20°C 1 bar and 40°C 0.1 bar and 40°C 0.1 bar and 20°C 1 bar and 20°C 1 bar and 40°C 0.1 bar and 40°C 0.1 bar and 20°C ANSWER DOWNLOAD EXAMIANS APP
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