Pawel_Wisnik
07-09-2007, 01:53 PM
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
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