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07-09-2007, 01:53 PM #1
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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