[TRNSYS-users] solar control glazing

Dear all,

I'm trying to study the way solar control glazings work. This type of glazing is selective, so supposed to let the main part of visible radiation go through the the window (Tv) while it stops the main part of short wave radiation. A non selective (normal) glazing and a solar control glazing with the same characteristics (g and Ug) are supposed to have differents behaviour. The first one wil let more IR radiation and less visible radiation go through the window than the second one.

For exemple, in summer, at midday, while the external shading device is on (value=1) all the short and longue wave radiation from outside is stopped but the shading device's temperature increases and its IR radiation to the glazing too. A solar control glazing should stop more IR radiative energy than a normal glazing. So the solar control glazing should be more efficient preventing summer indoor temperature increases. I would like to see this phenomena.

According to what is explained in the TRNSYS manual, the IR radiation of the external shading device is not calculated and I the transmission of radiation (short and long wave) is calculated with the same solar factor. In other words, there are solar control glazings in the lib but their selectivity is not programmed. Am I right?
So it's not possible to study the solar control glazings with TRNSYS (?)

Kind regards
Romain GOURDON (Enertech)