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    Lloyd Dias's Avatar
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    Measurement of flow rate



    Could someone help me, I want to know how to calculate the flow rate of refrigerant inside an air conditioner. Is there a device or formula i can use.



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    Re: Measurement of flow rate

    Quote Originally Posted by Lloyd Dias View Post
    Could someone help me, I want to know how to calculate the flow rate of refrigerant inside an air conditioner. Is there a device or formula i can use.
    Anemometer, usually the reading in m/s (air velocity), then you need to know the face area to calculate the air volume.

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    Re: Measurement of flow rate

    If you know displacement of compressor and discharge (or suction) pressure, you could calculate flow from refrigerant properties (density at certain pressure).
    Also, you could use coolpack software for such calculations.
    http://www.et.web.mek.dtu.dk/Coolpack/UK/download.html
    Last edited by nike123; 21-04-2009 at 11:39 AM.

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    Re: Measurement of flow rate

    Quote Originally Posted by robgfreeze View Post
    Anemometer, usually the reading in m/s (air velocity), then you need to know the face area to calculate the air volume.
    Please, read question one more time.

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    Re: Measurement of flow rate

    Could someone help me, I want to know how to calculate the flow rate of refrigerant inside an air conditioner. Is there a device or formula i can use.

    Hi Lioyd,

    If you wish the Mass flow rate of your refrigerant you could simply divide your capacity (kw) by your Refrigeration Effect. This might be a little easier than working out your displacement and dividing by the specific volume described earlier by Nike 123. it would depend of course if you are happy with your Mollier charts.

    Regards

    Sparrow
    Always easy on the eye.

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    Re: Measurement of flow rate

    Quote Originally Posted by sparrow View Post
    Could someone help me, I want to know how to calculate the flow rate of refrigerant inside an air conditioner. Is there a device or formula i can use.

    Hi Lioyd,

    If you wish the Mass flow rate of your refrigerant you could simply divide your capacity (kw) by your Refrigeration Effect. This might be a little easier than working out your displacement and dividing by the specific volume described earlier by Nike 123. it would depend of course if you are happy with your Mollier charts.

    Regards

    Sparrow
    could you explain it with examples...

    thanking
    moideen-dubai

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    Re: Measurement of flow rate

    Moideen, hi actually it should be recorded on a phychometric chart, not as I had written above. I am doing many things at the moment with mollier charts and can confuse even myself at times.

    Regards

    Sparrow
    Always easy on the eye.

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