Is anyone familiar with the Collector Test Data inputs for the WATSUN 2009 solar thermal modeling program? The program asks for 5 "Test Parameter" inputs A through E that relate to the equation, "Q = Area ((A + B dT) Akt H - (C + D dT) dT - E)" with no reference to a testing protocol or information source. The units for the variables are: A (dimensionless), B (1/deg C), C (W/m^2/deg C), D (W/m^2/deg C^2), and E (W/m^2). I haven't been able to find collector data that relates to these inputs. Any insight would be greatly appreciated!
Brian Turner PE, CEM, LEED AP BD+C