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  1. #1
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    Compression ratio



    Dear Friends,

    I have a question. Do you have any document that explains refrigeration compressor compression ratio at air-conditioning system and refrigeration systems ?

    Thanks.



  2. #2
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    Re: Compression ratio

    Compression ratio = Discharge pressure / Suction pressure. (Absolute pressures should be used).

    The smaller the ratio is, the more efficient the pumping is.

    If the ratio is high, less refrigerant mass is pumped over a given time especially in piston compressors, therefore more energy is consumed over time by the compressor motor or drive to achieve the same refrigerating effect as opposed to a low compression ratio.

    Lower compression ratio = more pumping.
    Higher compression ratio = less pumping.

    No documents but hope this helps.
    Last edited by Inverter man; 24-02-2017 at 01:00 PM.

  3. #3
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    Re: Compression ratio

    Hi, A.Mortezania

    it is archived a lot of answered questions here on RE forums ...

    but you need to do searching by yourself ...

    sometimes much better if you want to learn something .... believe me

    RE archive is like ... Treasure chest ...



    Quote Originally Posted by A.Mortezania View Post
    Dear Friends,

    I have a question. Do you have any document that explains refrigeration compressor compression ratio at air-conditioning system and refrigeration systems ?

    Thanks.
    check here,please..

    http://www.refrigeration-engineer.co...ression-Ratios

    also www is full of documents like this one ...
    http://www.hvacrinfo.com/cope_ae_bulletins/TAE1268.PDF

    http://nptel.ac.in/courses/Webcourse...cture%2019.pdf


    Best regards, Josip
    Last edited by Josip; 24-02-2017 at 01:18 PM. Reason: to add a link

    It's impossible to make anything foolproof because fools are so ingenious...

    Don't ever underestimate the power of stupid people when they are in large groups.

    Please, don't teach me how to be stupid....
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  4. #4
    Join Date
    Mar 2016
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    Re: Compression ratio

    Dear Josip and Inverter man,

    Thanks for help of both of you.

    Sincerely yours.

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