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  1. #1
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    Apr 2013
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    Total Heat Transfer Area: Vapour Compression Refrigeration System



    Good day to you,

    Does anyone out there know a good estimate or any real values for the total heat transfer area for the hot and cold sides of a domestic refrigeration system? i.e. the sum of the areas of the evaporator and the condenser.

    For the Evaporator:
    QL=UL.AL.(TL-T1)

    AL=heat transfer area of cold side (Low side)=????
    UL=overal heat trans. coefficient of cold side.=????
    QL=heat removed from cold side = 7.93 KW
    TL=refrigerator temp. = 3degs C + 273.15=276.12 Kelvin
    T1= Refrigerant evaporating temp. =0degs C + 273.15= 273.15 Kelvin

    I am trying to estimate this area so I can calculate the overal heat transfer coefficient which I need for other calculations. So far the outcome of estimating the area and finding the heat transfer coefficient based on it has not been realistic.

    If it helps:
    The aim of my project is to find the optimal heat transfer ratio between hot and cold side, there is theory on this which I am following, I just need some realistic values for area and heat transfer coefficient. I think it is more logical to estimate the area and find the h.t. coefficient based on that rather than the other way around.
    Last edited by jamesk; 07-08-2013 at 07:29 AM.



  2. #2
    Join Date
    Oct 2001
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    Nottingham UK
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    Re: Total Heat Transfer Area: Vapour Compression Refrigeration System

    I'm back on the Pale

  3. #3
    Join Date
    Apr 2013
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    Re: Total Heat Transfer Area: Vapour Compression Refrigeration System

    No, but I have read some of it now thank you.

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