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Thread: NH3 against R22

  1. #1
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    NH3 against R22



    Dear friends,

    I heard cooling capacity of compressor with same displacement in R22 is similar to NH3 (R717) but when I compare heat latent of NH3 and R22 they are very different, NH3 is about 1300 Kj/Kg and for R22 is about 200 Kj/Kg.
    Would it be possible someone help me to compare these two refrigerants from cooling capacity aspect of view ?

    Thanks in advance.



  2. #2
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    Re: NH3 against R22

    Quote Originally Posted by skyboy6142 View Post
    Dear friends,

    I heard cooling capacity of compressor with same displacement in R22 is similar to NH3 (R717) but when I compare heat latent of NH3 and R22 they are very different, NH3 is about 1300 Kj/Kg and for R22 is about 200 Kj/Kg.
    Would it be possible someone help me to compare these two refrigerants from cooling capacity aspect of view ?

    Thanks in advance.
    Skyboy,
    If it was a Mycom 200VLD compressor - 10 deg C sst 35 deg C sct

    Nh3 821kw 203kw absorbed power
    R22 792 kw 209 kw
    R22 much denser refrigerant

    So same in this case

    https://agilityrefrigeration.weebly....monia-vs-*****
    Last edited by RANGER1; 03-04-2021 at 08:27 PM.

  3. #3
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    Re: NH3 against R22

    Hi skyboy6142,
    Quote Originally Posted by skyboy6142 View Post
    Dear friends,

    I heard cooling capacity of compressor with same displacement in R22 is similar to NH3 (R717) but when I compare heat latent of NH3 and R22 they are very different, NH3 is about 1300 Kj/Kg and for R22 is about 200 Kj/Kg.
    Would it be possible someone help me to compare these two refrigerants from cooling capacity aspect of view ?

    Thanks in advance.
    something from your neighborhood ...
    https://agilityrefrigeration.weebly....monia-vs-*****


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    Re: NH3 against R22

    Hi
    In low temperature R22 has more efincy than NH3

  5. #5
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    Re: NH3 against R22

    Thanks from all of you

  6. #6
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    Re: NH3 against R22

    Skyboy,

    With an open piston compressor no cooling at all. At same regime -15 ºC / +35 ºC, both @ 1,000 rpm
    R22 - 335,2 kW @ 117,7 kW absorb power.
    R717 (NH3) - 335,5 kW @ 106,3 kW absorb power.

    And then discharge temperature on R717 will be much higher.

    Just remember GWP of R717 = 0, R22 = 1,810...

    I hope with this you don't even keep thinking on using R22.

    Take care...

    D

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