(a) Calculate the R-value of a thermal window made oftwo single panes of glass each
Chapter 20, Problem 53(choose chapter or problem)
(a) Calculate the R-value of a thermal window made oftwo single panes of glass each 0.125 in. thick and separatedby a 0.250-in. air space. (b) By what factor is thetransfer of energy by heat through the window reduced by using the thermal window instead of the single-panewindow? Include the contributions of inside and outsidestagnant air layers.
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