When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

None of these

Equal to

More than

Less than

None of these

Equal to

More than

Less than

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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)/2

P₂ = Pa × p₃/p₁

p₂ = Pa p₃/p₁

p₂ = p₁. p₃

p₂ = (p₁ + p₃)/2

P₂ = Pa × p₃/p₁

p₂ = Pa p₃/p₁

p₂ = p₁. p₃

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Compressors, Gas Turbines and Jet Engines
A rotary compressor is driven by an

None of these

Engine

Either (A) or (B)

Electric motor

None of these

Engine

Either (A) or (B)

Electric motor

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Compressors, Gas Turbines and Jet Engines
The thrust of a jet propulsion power unit can be increased by

All of these

Injecting ammonia into the combustion chamber

Burning fuel after gas turbine

Injecting water into the compressor

All of these

Injecting ammonia into the combustion chamber

Burning fuel after gas turbine

Injecting water into the compressor

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Compressors, Gas Turbines and Jet Engines
Isothermal compression efficiency, even when running at high speed, can be approached by using

Cold water spray

Multistage compression

Both (A) and (B) above

Fully insulating the cylinder

Cold water spray

Multistage compression

Both (A) and (B) above

Fully insulating the cylinder

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Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as

Compressor efficiency

Mechanical efficiency

Isothermal efficiency

Volumetric efficiency

Compressor efficiency

Mechanical efficiency

Isothermal efficiency

Volumetric efficiency

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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an

Compressors, Gas Turbines and Jet Engines The thrust of a jet propulsion power unit can be increased by

Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using

Compressors, Gas Turbines and Jet Engines Ratio of indicated h.p. to shaft h.p. in known as

Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines
A rotary compressor is driven by an

Compressors, Gas Turbines and Jet Engines
The thrust of a jet propulsion power unit can be increased by

Compressors, Gas Turbines and Jet Engines
Isothermal compression efficiency, even when running at high speed, can be approached by using

Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as