Dear Joke, I debugged your project and it turns out that there are too many shaders projected on the plane window/wall plane for clipping. The shading routine isn't designed to calculate each lamella of a louver for each window of a building. In addition each of your lamellas consist of 6 surfaces. This results in 3040 shading surfaces!!!! The solution is simplification without a significant loss of accuracy (see attached image): - delete all shading louvers except one for each orientation - replace the six surfaces of a lamella by one sloped surface (the diagonal surface in the shading box). For these windows a shading matrix is calculated und the shading is calculated automatically For the other windows you set the external shading factor to an input. You define Ntype 103 (IBSHAD) and Ntype 104 (IDSHAD) for the windows with the shading matrix. For each orientations this input is calculated by an equation in the TRNSYS Project file SHAD_ x_y_z = (IBSHAD+IDSHAD)/Window_area /IT_x_y_z If you still have trouble, please send me your IDF file. Kind regards, Marion Dipl.-Ing. Marion Hiller TRANSSOLAR: KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäude Munich - New York - Stuttgart + 49.711.67976.0 Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart Amtsgericht Stuttgart - HRB 23347, Steuernummer 99073/00911, USt-IdNr.: DE152272639 Geschäftsführer: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer, Dipl.Phys. Stefan Holst, Prof. Dipl.-Ing. Bleicher -----Ursprüngliche Nachricht----- Von: Joke De Beuckelaer [mailto:joke.d@vkgroup.be] Gesendet: Donnerstag, 19. Mai 2011 08:09 An: Marion Hiller Cc: TRNSYS-users Betreff: RE: Re: [TRNSYS-users] Error: generating shading/insolation matrix Dear Marion, It's strange that the error occurs because the surface number>999. When I deleted all the shading except 1 rectangle, the same error occurred. Or is this number (999) with the surfaces of the model included? In attachment you can find the original idf file. Normally I've send all my files already, didn't you receive them? I'm working with Trnsys version 17.00.0018. Thanks a lot already for all your help and I hope you can find the problem, Kind regards, Joke De Beuckelaer project engineer mep VK HEALTHCARE | BUILDINGS | INDUSTRY | INFRA Value by design VK ENGINEERING Avenue Clemenceaulaan 87, 1070 Bruxelles Brussel, Belgium t +32 2 414 07 77 f +32 2 414 04 98 m +32 473 97 01 50 e joke.d@vkgroup.be w www.vkgroup.be -----Oorspronkelijk bericht----- Van: Marion Hiller [mailto:hiller@transsolar.com] Verzonden: dinsdag 17 mei 2011 13:27 Aan: Joke De Beuckelaer CC: TRNSYS-users Onderwerp: AW: Re: [TRNSYS-users] Error: generating shading/insolation matrix Joke, the error message is due to too surface numbers > 999. The surface number can't be written in the log file (artsmetiers7_shd.log) and *** are written instead. *** Notice at time : 0.000000 Orientation of wall SURF=***: azimuth angle= 180.00°, slope= 90.00° Orientation of wall SURF=***: azimuth angle= 0.00°, slope= 0.00° In order to see why the surface numbers are so high (starting with 3993 instead of 1) I need to need the original *.idf and check the import function. With what version of TRNSYS17 are you working? I have in mind that we fixed such a bug created by the import. Kind regards, Marion -----Ursprüngliche Nachricht----- Von: Joke De Beuckelaer [mailto:joke.d@vkgroup.be] Gesendet: Donnerstag, 12. Mai 2011 08:58 An: duffy@tess-inc.com; trnsys-users@cae.wisc.edu Betreff: Re: [TRNSYS-users] Error: generating shading/insolation matrix _______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users VISIT US AT REALTY SUBSCRIBE FOR THE VK-COCKTAIL AT REALTY <mailto:marketing@vkgroup.be?SUBJECT=vk-cocktail> ****DISCLAIMER**** This communication is confidential and for the sole useof the addressee. If you are not the intended recipient, please immediately notify the sender by e-mail at the address shown and then delete it from your system without copying, disclosing or forwarding its contents. Thank you.
Attachment:
reduced_shader.jpg
Description: JPEG image
