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What is the heat loss?

thread1630-495628

What is the heat loss?

What is the heat loss?

(OP)
The inner and outer surface temperatures of a glass window 5 mm thick are 15 and 5°C, respectively. What is the heat loss through a window that is 1 m by 3 m on a side? The thermal conductivity of glass is 1.4 W/mK.
Thank you so much! :)

RE: What is the heat loss?

IRstuff is right; it should be in your textbook. However, you could also do what we called following the units. Conductivity is in W per meter per degree Kelvin (= degree Celsius). Convert the thickness of the glass to meters, and set up the problem so the other units cancel, leaving you with only Watts.

Rod Smith, P.E., The artist formerly known as HotRod10

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