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What is this formula?

BenAdlington
in Homework Help

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I know it has something to do with U-Values but i'm not sure what everything stands for or how to use it.

 

Please help...

 

post-129855-0-45212800-1496145703.png

It looks like a variant of the overall heat transfer coefficient

 

U is the Overall Heat Transfer Coefficient (Watts per metre^2 per Kelvin)

 

Q is the Energy transferred in time t ( Joules per second ie Watts)

Delta T is the difference in temperature between two surfaces (Kelvin)

A is surface Area (metres^2)

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