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  1. #1
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    heat load calculation in an enclosure



    Hi, I have a question on calculating the required BTUH based on these conditions. I have an enclosure with windows that houses half of two pieces equipment. The enclosure is inside a ventilated room at ambient temperature. The only info I know is the power of the equipment and the temperature that the enclosure needs to be at. I am getting a large BTUH that seems unreasonable. What is the best approach?



  2. #2
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    Re: heat load calculation in an enclosure

    Well,
    Someone once stated that "energy can not be created nor destroyed", therefore if you know the electricity consumption of the equipment in your box you know the heat generated by it, then it is just a matter of adding any heath transfer through the walls of your box.

    Amperes x Volt = Watt
    Watt x 3.41214 =~ BTU

    Simples...


  3. #3
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    Re: heat load calculation in an enclosure

    Thanks for your response. I have done that but having trouble finding the heatloss throught the wall. my enclosure is 100ft^2 with 2 inch thick walls. Material is stainless steel. total btu/h based on the wattage is 4000.

  4. #4
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    Re: heat load calculation in an enclosure

    OK,
    So what temperature are they looking for inside the enclosure and what is the temperature outside it?

    Assuming it isn't 2" SS, it will be 2"lagging?

  5. #5
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    Re: heat load calculation in an enclosure

    outside is at room temperature and inside needs to be at room temperature as well

  6. #6
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    Re: heat load calculation in an enclosure

    What temperature is room temperature?

    Or us there's no differential either side of the wall?
    The difference between genius and stupidity is that genius has its limits.

    Marc

  7. #7
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    Re: heat load calculation in an enclosure

    What temperature is room temperature?

    Or is there's no differential either side of the wall?
    Last edited by marc5180; 25-03-2014 at 05:11 PM.
    The difference between genius and stupidity is that genius has its limits.

    Marc

  8. #8
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    Re: heat load calculation in an enclosure

    So if there is no temperature differential there will be no heat transfer...

    4000 is therefore your required Btu/h.


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