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Math Help - Heat Loss Calculation

  1. #1
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    Oct 2008
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    Heat Loss Calculation

    Hi,

    I'm trying to calculate how long it will take for a 5 Liter HDPE container with a wall thickness of 0.005 m filled with 50 degree water to equalize with the outside temperature of 20 degrees.

    Thermal Conductivity of HDPE. -Approx. 0.88W/mk
    Total surface area exposed to water is - 0.169m

    So i used Fouriers law:

    I calculated 892.32 Watts

    My question is what does this relate to? Im realy confused how I use this to determine the time it will take for the water temp to equalise.

    Thanks for your help!

    Rob
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  2. #2
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    Does anyone know an answer?
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