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  • How to convert cable thermal losses [Watts] into enthalpy?

    Rasmus Brenøe Ruus

    Member

    Updated: Oct 26, 2024
    Views: 1.3K

    Hello fellow engineers

    I have a certain thermal loss from my power cables, it's about 15Watts loss, and I somehow have to convert that into a enthalpy so I can calculate how much more my cooling unit has to work.

    The cable is a 4G4 powerflex copper cable. 

    the ambient temperature of the room is 40 degrees celcius.

    What do I do?

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  • Ramani Aswath

    Member • May 1, 2019

    1 kwhr = 860 kcals 

    15 watts adds 13 kcals of heat in an hour. That much extra has to be removed by the cooling system.

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  • Rasmus Brenøe Ruus

    Member • May 1, 2019

    Thanks Ramani. 


    Is there an formula anywhere for this you could show me? 


    Best regards

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  • Rasmus Brenøe Ruus

    Member • May 1, 2019

    Nevermind 1 W is of course 1 J/s. 


    Thanks a lot for the help!! 

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