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Discussion :: Compressors, Gas Turbines and Jet Engines

  1. Volumetric efficiency of a compressor without clearance volume

    2. A.

     Increases with increase in compression ratio
    B.

     Decreases with increase in compression ratio
    C.

     Is not dependent upon compression ratio
    D.

     May increase/decrease depending on compressor capacity

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    Workspace

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    Answer : Option C

    Explanation :

    A compressor's volumetric efficiency (V) is defined by the ratio of the actual volume of gas that it could suck if there was no such thing as clearance volume.
    Therefore, a compressor with less clearance volume should be more volumetrically efficient.

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