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Water in a refrigeration cycle

Water in a refrigeration cycle

Water in a refrigeration cycle

(OP)
Hi Everybody,

hope somebody can help me.

I tried to search in old post but without success.

I am trying to calculate some heat exchangers where water is utilized as refrigerant, that is: enters in the condenser as steam and condenses and it is evaporated in the evaporator (enters as water and becomes steam).

Question: can anybody of you suggest me some correlations to utilize for convective coefficient in these two phases for this refrigerant ?
Has anybody of you any experience with water utilized as refrigerant ?

Many thanks
  

RE: Water in a refrigeration cycle

check heat transfer references for convective heat transfer coefficients.  There are a lot of published numbers for different water, saturated and superheated phases under different flow conditions.

RE: Water in a refrigeration cycle

Quote (MrReds):

Has anybody of you any experience with water utilized as refrigerant ?

Yup, that is what they do in LiBr+Water vapor absorption systems.
 

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