Compressors, Gas Turbines and Jet Engines The work ratio of a gas turbine plant is defined as the ratio of Actual heat drop and isentropic heat drop Net work output and work done by turbine Net work output and heat supplied Net work output and isentropic heat drop Actual heat drop and isentropic heat drop Net work output and work done by turbine Net work output and heat supplied Net work output and isentropic heat drop ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Compression efficiency is compared against Isothermal compression Ideal compression Adiabatic compression Isentropic compression Isothermal compression Ideal compression Adiabatic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Enables compression in two stages Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Cools the delivered air Enables compression in two stages Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Cools the delivered air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler’s work is known as Euler Isentropic efficiency Compressor efficiency Pressure coefficient Euler Isentropic efficiency Compressor efficiency Pressure coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For minimum work required to compress and deliver a quantity of air by multistage compression The intercooling should be perfect The work-done in each stage should be same All of the listed here The compression ratio in each stage should be same The intercooling should be perfect The work-done in each stage should be same All of the listed here The compression ratio in each stage should be same ANSWER DOWNLOAD EXAMIANS APP
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