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Pipework Heat Loss

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  • 23-07-2020 5:08pm
    #1
    Howlin
    Registered Users Posts: 199 ✭✭


    Hi all,

    I am trying to work out the heat loss from a pipework with a particular thickness of insulation.

    Attached is an excel sheet which shows an equation to calculate the heat flow from a multi-layer hollow cylinder. The equation is from ISO 12241:2008, equation 8 and 9.

    Using that equation, having a copper pipe with inside diameter of 19.05 and outside diameter of 21mm, 20mm insulation with thermal conductivity of 0.03 has a heat loss per metre of 11.27.

    I am wondering, am I using the correct equation and if I am, is the the result correct for the inputs?

    Regards,
    Stephen


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