ThomasP Posted September 11, 2017 Share Posted September 11, 2017 - How do I convert the coefficients, a and b, used in the Sandia thermal model to the U-values used in the PVsyst thermal balance model? Regarding the thermal balance equation: U · (Tcell - Tamb) = Alpha · Ginc · (1 - Effic):- Are U, Tamb, Alpha and Ginc the inputs of the above equation and Tcell and Effic are determined so as to satisfy the above equation? - In a previous post in this forum it was stated that U has a high uncertainty. How is this uncertainty implemented in the above equation? i.e. what is the relationship between the U used in the above equation and the U-values defined by the user. Thanks for your help! Link to comment Share on other sites More sharing options...
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