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  1. #1
    solankisagar's Avatar
    solankisagar Guest

    How much gas will be required......pleaseeee help



    I am making deepfreezer need some help.
    using
    evaporator, pipe 3/8 around 50 feet
    compressor 1/2 hp
    how to calculate (or any software to calculate)how much gas will be required for this machine while charging.
    R134a



  2. #2
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    Re: How much gas will be required......pleaseeee help

    134a


    .............................Liquid... Hot Gas
    ...............................Line.....Line (55C)
    .......................................................................-40C.......-30C......... -20C.......-10C...........0C

    Inches....................kg/m........gm/m...................gm/m.......gm/m.........gm/m.........gm/m........gm/m

    3/8.......................0.0595.......2.2322.................0.1488.....0.1488........0.2976........0 .5953.......0.8929


    I have it all in table form if you send me your email I will forward a copy to you (the formatting is all over the place but the original table is easy to use).


    134a 3/8 pipe in liquid is 0.0595 kg/m
    134a 3/8 pipe suction at -10 is 0.5953 gm/m

    Regards

    Rob

    .
    Last edited by Rob White; 29-11-2012 at 09:19 AM.

  3. #3
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    Re: How much gas will be required......pleaseeee help

    Quote Originally Posted by solankisagar View Post
    I am making deepfreezer need some help.
    using
    evaporator, pipe 3/8 around 50 feet
    compressor 1/2 hp
    how to calculate (or any software to calculate)how much gas will be required for this machine while charging.
    R134a
    Just till your SH reaches the desired value of +/- 6 to 5K. As easy as that.
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

  4. #4
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    Re: How much gas will be required......pleaseeee help

    Dear Rob White,
    May I request you to send me too a copy of the table. My e-mail ID is rayin123@gmail.com
    With thanks and regards
    Rayin

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