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Re: [TRNSYS-users] Decentralized ventilation in Trnsys
Dear Christian
Thanks for your help.
I found the problem. When installing G95 the installer asks for setting the paths, which one should allow. Somehow he puts the Path for the bin folder under "User variables for ..." instead of "System variables". This can be corrected by going to: Control Panel -> System -> Advanced system settings -> Environment Variables. Copy the value of the variable PATH under "User variables ..." to the already existing Path variable under "System variables". Put it at the beginning.
Concerning G95 I'm using the latest version (http://ftp.g95.org/v0.92/g95-MinGW-41.exe) on a Windows7 system running under Parallels. G95, even though dating back to June '09 seems to be fine with Window7.
Best regards
Philippe
On Aug 11, 2010, at 2:38 PM, Fieberg, Christian wrote:
> 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
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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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