Compressors, Gas Turbines and Jet Engines The ratio of work done per cycle to the swept volume in case of compressor is called Compression index Compressor efficiency Mean effective pressure Compression ratio Compression index Compressor efficiency Mean effective pressure Compression ratio 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 = p₁ × p₂ p₂ = p₃/p₁ p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₁ × p₂ p₂ = p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor resembles Reciprocating pump Centrifugal pump Turbine Sliding vane compressor Reciprocating pump Centrifugal pump Turbine Sliding vane compressor 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 = Pa p₃/p₁ 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In gas turbines, high thermal efficiency is obtained in Closed cycle Closed/open depending on other considerations Open cycle Closed cycle & Open cycle Closed cycle Closed/open depending on other considerations Open cycle Closed cycle & Open cycle ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Compressed air C. electric motor Diesel engine Petrol engine Compressed air C. electric motor Diesel engine Petrol engine ANSWER DOWNLOAD EXAMIANS APP
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