Posted by James on Thursday, July 19, 2012 at 4:15pm.
R is the reciprocal of the amount of BTU of heat transfered across 1 ft^2 in 1 hour with a temperature difference of 1 F.
1/R = 8.6*10^-6*3600 s*(1.0 degF)/(8.9/12 ft)
R = 24 ft^2*degF*h/BTU
Thank you!
Could you write out just the basic equation that you used?
The equation I found in my text book doesn't mention time being a factor when calculating R.
I have R= L/k
where L is length and k is thermal conductivity.
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