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  1. 07-09-2007, 01:53 PM #1
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    Pawel_Wisnik
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    Single compression vs two stage compression.



    Hi,
    answer me please advantages of using two stage compression vs single stage for supermarket LT range (to=-37/tc=40oC). I have made simple comparison between similiar compressors at nearly identic working conditions based on Bitzer software. Is this advantage a current which is about 20% less for two stage?

    COP is a bit better for single stage.

    Or maybe I omitted some others factors which are essential for such comparision.

    I know that is not recommended to use single compression when compression ratio is higher than 8 and then apply two stage one. Is this main reason?

    Awaiting your help

    BrgPawel
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