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  1. #1
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    How To Calculate PDU and Kw For Coldroom Without Software?



    Hi All,
    I just started to step in this industry,
    Please give me some suggestion how to calculate the PDU and KW for the following coldroom.

    Room Dimension: 3615mmX3615mmX4038mm(H)X75mm(T)
    Temperature Require: -2'C
    Storage: Chinese Broccoli/Kai Lan
    Frequency To Open Sliding Door: 20% per Day.

    How To Calculate The PDU and KW For this coldroom without any support of software.
    Please Advice The Calculation.
    Thanks a lot...



  2. #2
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    Re: How To Calculate PDU and Kw For Coldroom Without Software?

    I think the product incoming temperature & its quantity is also needed here.

    If you Send your email, I can send you basic calculations

  3. #3
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    Re: How To Calculate PDU and Kw For Coldroom Without Software?

    Quote Originally Posted by smpsmp45 View Post
    I think the product incoming temperature & its quantity is also needed here.

    If you Send your email, I can send you basic calculations
    Thanks For Your Reply, Really Appreciate.
    Kindly Send the calculation to this email add: hongyunref@hotmail.com

  4. #4
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    Re: How To Calculate PDU and Kw For Coldroom Without Software?

    You will need to calculate the transmission load. Then add in the pull down load.

  5. #5
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    Re: How To Calculate PDU and Kw For Coldroom Without Software?

    In Australia, if not too much pull down load, just make it 265W/m2 will do.
    And you can go 240W/m2 if you want.
    Last edited by HVACRAU; 18-06-2013 at 07:41 AM.

  6. #6
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    Re: How To Calculate PDU and Kw For Coldroom Without Software?

    Quote Originally Posted by HVACRAU View Post
    If not too much pull down load, just make it 265W/m2 will do.
    And you can go 240W/m2 if you want.
    Oh, you are in Malaysia. You need allow higher, make 350W/m2 for this room...

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