It's been some time since I played with these values...from what I remember the combination of SHGC and U-value was hard to get. When I got it to match and switched to the american standard conditions, my U-value of 1.1 went up to 1.4 and the SHGC stayed much the same. But I was investigating the assembly as a whole including frame.
Thank you, Jean and Rahul.
I see that as "environmental conditions" in the software Window 6 there are "NFRC 100-2010", "NFRC 100-2010 winter", and ""NFRC 100-2010 summer". Does EnergyPlus evaluate the properties in the "NFRC 100-2010" conditions?
I see that between the European standard and the American standard the differences can be particularly high for low U-values and large air gaps:
On 21.10.2013, at 17:29, <fpasserini.tn@...> wrote:
I'm modeling a building according to ASHRAE 90.1-2007. It is a design building.I got U-values according to European technical standardsISO 12567-2:2005andEN 673:2011I'm modeling the glazing surfaces with the object WindowMaterial:SimpleGlazingSystemDo you know if I have to change the values before writing them in EnergyPlus, in order to consider different test conditions between European technical standards and EnergyPlus?With Regards