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The fact is shortly as follow: the *.dck is what trnsys need to run.
In the dck, depending on how the model is created, there are several types that could need external input files. This is the case, for example, of the
type56 that models a multizone building. This type needs a *.bui input file in which many building parameters are given (e.g. the materials properties, walls constructions,…). So, the question is: can I tell jeplus to parametrically modify the *.bui file, running each time trnsexe.exe calling the same *.dck (in which there is
the reference to the parametrically changed *.bui file)? in each output folder I should then find the dck and a version of the bui modified thanks to the string @@xxx@@. If you need more information about what I mean just ask! Thanks a lot! With best regards Stefano Stefano Avesani Institute for Renewable Energy EURAC research t +39 0471 055 654 f +39 0471 055 699 This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information.
P Think before you print From: Yi Zhang [mailto:YiZhang@dmu.ac.uk]
Dear Stefano/Saleh, Sorry I don't recall if I responded to Saleh's earlier question or not... Since I am not a TRNSYS user, José can correct me if I get anything wrong. jEPlus searches the specified search tags in the main .DCK or .TRD files, as well as in any external files loaded by an INCLUDE or an ASSIGN command. I don't know about the
.BUI files; but if they are loaded in the main .DCK file, you should be able to have parameters in them. To edit a file other than the main .DCK, you will need to use a text editor... To the second question, jEPlus processes output files in CSV format only. Your model needs to write output in a .csv using the right printer, and you tell jEPlus the files
you want it to collect in the "output file name(s)" field (I am renaming it to "printer file name(s)"). So "trnsysout.csv" should be a printer name you have in your .DCK model.
We are still working on the TRNSYS part of the users manual. It should be ready in a few days' time. Cheers, Yi Dr Yi Zhang IESD, De Montfort University, United Kingdom From: Avesani Stefano
[mailto:stefano.avesani@eurac.edu] Dear all, Any news concerning the use of jeplus for parametric changes in the *.bui (and not just in the *.dck) of a trnsys project? Thanks a lot Best regards Stefano Stefano Avesani Institute for Renewable Energy EURAC research t +39 0471 055 654 f +39 0471 055 699 This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information.
P Think before you print From:
trnsys-users-bounces@cae.wisc.edu
[mailto:trnsys-users-bounces@cae.wisc.edu]
On Behalf Of saleh saadi Dear Dr Zhang,
Thanks for doing this great job!!!. I used the template file provided with GenOpt (folder is attached).
I tried using this version with TRNSYS 16 and works pretty well and quick (24 parametric runs in less than a minute). Is it possible to add a browsing tab to edit the building
file (*.bui). Although, I could run the parametric files but no output was extracted. In my template file, I normally extract output in a text file but jEPlus could not copy the file
or save it in any format. Is there a way to save the text file in the folder file similar to input file. In addition, I can't find the "trnsysout.csv" output file anywhere. Is that enabled in this version?
regards, saleh alsaadi
From: Yi Zhang <YiZhang@dmu.ac.uk> Hi Bjoern, I should provide an example TRNSYS parametric project in the package; I will do that in a couple of days. In the meantime, could you take a look at the E+ example? Just
open the project in the example/ folder, and you will see how to specify parameters. Unlike E+, the weather file in a TRNSYS model is normal parameter. You just need to create a parameter and think of a search string (e.g. "@@weather@@") to put in the place
of the weather file in the .DCK (or .TRD) file, and then specify the alt. values of the parameter using syntax like "{weather1.txt, weather2.txt, ...}".
Here is quick video of how to use jEPlus (http://www.youtube.com/watch?feature=player_embedded&v=9v8k52IyvV4).
Again it is for E+ rather than TRNSYS; but the principle is the same. Cheers, Yi Dr Yi Zhang IESD, De Montfort University, United Kingdom From: Bjoern Nienborg
[mailto:bjoern.nienborg@ise.fraunhofer.de] Hi Yi, Hi all, jEPlus is an open source parametric tool for managing EnergyPlus simulations. Due to popular demand, support for TRNSYS simulations has been added to the latest version
(jEPlus v1.3beta). Please visit http://www.iesd.dmu.ac.uk/jeplus/ for more details. Please note we are currently testing the new version; any comments or suggestions will be much appreciated. Regards, Yi Dr Yi Zhang IESD, De Montfort University, United Kingdom _______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users -- Dipl.-Ing. (FH) Björn Nienborg, M.Sc. Division Thermal Systems and Buildings Fraunhofer Institut für Solare Energiesysteme ISE Heidenhofstr. 2, 79110 Freiburg, Germany Tel.: +49 (0)761 4588-5883 FAX: +49 (0)761 4588-9000 http://www.ise.fraunhofer.de/
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