[TRNSYS-users] Type 68 (shading mask)

[Michaël Kummert]

Vito,

> I have in the TRNSYS version of my University the type 68 (the shading mask) but there isn't its description in the reference manual (!!) and its informations in the Fortran file are insufficient.
> I'M NOT SURE HOW TO USE IT. 
> Can anyone explain it?
> Is there an example of external file?

The manual section on Type68 was added after most manuals were shipped 
(I am not sure Type 68 was in the original release of TRNSYS 15). I 
attached a PDF version to this message.
I also attached an example using Type68 (IISiBat project + external file 
with comments in it). It has 2 orientations with different obstruction 
profiles and it uses equations to input the solar angles to show the 
effect of shading.
Please note that the values entered for radiation and angles through the 
equations are not physical, i.e. you can have incident radiation from 
the East on a West-facing wall. This would not happen if you connect 
Type68 to Type 16, of course. The point of this example is to have the 
azimuth angle and the solar altitude angle vary accross the whole range, 
with a constant radiation, to illustrate the effect of shading by masks.

I hope this helps,

Michaël Kummert

-- 
_________________________________________________________

Michaël Kummert

Solar Energy Laboratory - University of Wisconsin-Madison
1303 Engr Res Bldg, 1500 Engineering Drive
Madison, WI 53706

Tel: +1 (608) 263-1589
Fax: +1 (608) 262-8464
E-mail: kummert at engr.wisc.edu

SEL Web Site: http://sel.me.wisc.edu
TRNSYS Web Site: http://sel.me.wisc.edu/trnsys
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