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Discussion :: Compressors, Gas Turbines and Jet Engines

  1. 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

    2. A.

     p₂ = (p₁ + p₃)/2
    B.

     p₂ = p₁. p₃
    C.

     P₂ = Pa × p₃/p₁
    D.

     p₂ = Pa p₃/p₁

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    Answer : Option B

    Explanation :

    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

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