Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of a compressor without clearance volume

May increase/decrease depending on compressor capacity
Increases with increase in compression ratio
Decreases with increase in compression ratio
Is not dependent upon compression ratio

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Compressors, Gas Turbines and Jet Engines
Intercooling in gas turbines

Decreases net output but increases thermal efficiency
Decreases net output and thermal efficiency both
Increases net output but decreases thermal efficiency
Increases net output and thermal efficiency both

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