[TRNSYS-users] in TRNBuild, what does the "slope of window" in window type manager mean?

[Marion Hiller]

Yi,

For Type 56 geometric information of a window surface orientation as slope  isn't mandatory. You can define a model
where the geometric information is given by the surface area and the incident angle of the beam radiation.

The slope defined in the window type manager is used for calculating the convection of gaps between glass panes for all windows.
(The slope of the surface given by a standard orientation is NOT used.) For solar radiation calculation the angles of the orientation
are used.

Best regards,

Marion





Dipl.-Ing. Marion Hiller

Transsolar Energietechnik GmbH
Curiestraße 2
70563 Stuttgart
Telefon: +49 711 67976-0
http://www.trnsys.de<http://www.trnsys.de/>

Transsolar: KlimaEngineering- Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäuden
Stuttgart - München - New York - Paris
Geschäftsführer :Diplom-Ingenieur Matthias Schuler, Diplom-Ingenieur Thomas Auer, Diplom-Physiker Stefan Holst, Diplom-Betriebswirt Dieter Schnelle
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Steuernummer: 99073/00911,USt-IdNr.: DE 152272639

________________________________
Von: trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] Im Auftrag von Margarethe Korolkow
Gesendet: Freitag, 22. November 2013 14:50
An: TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
Betreff: Re: [TRNSYS-users] in TRNBuild, what does the "slope of window" in window type manager mean?

Dear Yi,

a normal window (in the facade) has a slope of 90 degrees. That means it`s vertical. The slope is the inclination. In some projects the slope of windows is varied in order to e.g. avoid some solar gains.
I hope, this helps you.

Best regards
Margarethe

Von: trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] Im Auftrag von Yi Lu
Gesendet: Freitag, 22. November 2013 14:27
An: trnsys-users at cae.wisc.edu
Betreff: [TRNSYS-users] in TRNBuild, what does the "slope of window" in window type manager mean?


hello trnsys-users,
i can not undetstand, why there is a slope difinition in the window type. slope means something about orientation. but the orientation is already descript in zone definition, isn't it? or it means each different slope should be a window type, even if everything else are same?
and I built a simple modell in sketchup with trnsys3d. when i look deeper, in the idf and b17 file, every window type has the same slope 90.
i'm a little confused.

regards
Yi
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