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Re: [TRNSYS-users] Decentralized ventilation in Trnsys
Dear Philippe,
I don´t know about your ventilation problem, but for your second question about G95 I added a former posting from Werner Keilholz.
I followed his advice and we now use G95 for our own types.
One tricky thing is about the PATH variables. Here, the G95 path should be set in first position. I encountered problems with the DLL commands until I set the G95 path at front.
Good luck,
Christian
Posting from Werner Keilholz:
Dear TRNSYS users,
One of our users (Cristian Muresan of EDF - thanks Cristian for this contribution!) has successfully used the open source FORTRAN compiler G95 (http://www.g95.org/) to create TRNSYS types (as drop-in Dlls).
As we had several requests from users about free FORTRAN compilers that could be used with TRNSYS, I created a simple example, summed up the procedure and translated it to English, for anyone who might be interested. You will find it at the end of the list at
http://software.cstb.fr/main/articles.asp?langue=us
Sincerely,
Werner Keilholz
TIDS / IIL / Ingénieur
Centre Scientifique et Technique du Bâtiment
84 avenue Jean Jaurès - Champs-sur-Marne - 77447 Marne-la-Vallée Cedex 2
Tél : 04 93 95 67 46
Fax : 04 93 95 67 33
Port : 06 82 93 32 36
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-----Ursprüngliche Nachricht-----
Von: Philippe Goffin [mailto:goffin@arch.ethz.ch]
Gesendet: Mittwoch, 11. August 2010 13:55
An: trnsys-users@cae.wisc.edu
Betreff: [TRNSYS-users] Decentralized ventilation in Trnsys
Dear all
I'm trying to model a decentralized supply air system. To start with, I modelled a simple 1 zone "building" in TRNBuild, with each wall having its own supply air system integrated in it, in order to use effects like wind or higher air temperature near the wall facing the sun. Therefore I created 4 ventilation types, so that each wall can have an individual fresh air supply (e.g. not all supply systems deliver the same fresh air massflow, since each supply system is steered individually through a specific "massflow" input into Type56).
When I add to each wall its corresponding ventilation system the program apparently does not memorize it, all walls get the same ventilation type, e.g. the first ventilation type from the ventilation types list. Does this mean that it is not possible to have multiple ventilation systems in a zone ? Do I have to model this decentralized apparatus completely outside of TRNBuild, or is this a bug?
Additionally, did someone manage to get G95 or another free Fortran compiler to run on Windows7, to compile new components?
Cheers
Philippe
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