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

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 = Pa p₃/p₁

p₂ = (p₁ + p₃)/2

P₂ = Pa × p₃/p₁

p₂ = p₁. p₃

p₂ = Pa p₃/p₁

p₂ = (p₁ + p₃)/2

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Compressors, Gas Turbines and Jet Engines
In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as

Work factor

Pressure coefficient

Slip factor

Degree of reaction

Work factor

Pressure coefficient

Slip factor

Degree of reaction

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Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of

None of the listed here

Higher thrust

Low frontal area

High pressure rise

None of the listed here

Higher thrust

Low frontal area

High pressure rise

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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

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Compressors, Gas Turbines and Jet Engines
Efficiency of gas turbine is increased by

Inter cooling

Adding a regenerator

All of the listed here

Reheating

Inter cooling

Adding a regenerator

All of the listed here

Reheating

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Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is 5 m/min refers to

Free air

Compressed air at delivery pressure

Standard air

Compressed air

Free air

Compressed air at delivery pressure

Standard air

Compressed air

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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as

Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of

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)

Compressors, Gas Turbines and Jet Engines Efficiency of gas turbine is increased by

Compressors, Gas Turbines and Jet Engines The capacity of a compressor is 5 m/min refers to

Compressors, Gas Turbines and Jet Engines
In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as

Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of

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)

Compressors, Gas Turbines and Jet Engines
Efficiency of gas turbine is increased by

Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is 5 m/min refers to