I have done such a
parametric study too.
I used 4 different .bui
files, representing the same building, but with different wall and glass
properties, and assigned them with 4 different LU numbers.
I made in the dck file a
constant “Building”, used it in the parametric table, and edited in
the table the LU number with the building properties I needed.
This is the simplest way
to my opinion, and hopefully it leads to your desired results too.
Kind regards,
Gerrit Jan Ruijg
The Netherlands
Van: Avesani Stefano
[mailto:stefano.avesani@eurac.edu]
Verzonden: 6 augustus 2012 15:36
Aan: Yi Zhang; saleh saadi;
bjoern.nienborg@ise.fraunhofer.de
CC: trnsys-users@cae.wisc.edu;
jsantv@gmail.com
Onderwerp: Re: [TRNSYS-users]
jEPlus for TRNSYS parametrics
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
Viale Druso 1, I-39100 Bolzano
t +39
0471 055 654
f +39
0471 055 699
stefano.avesani@eurac.edu
www.eurac.edu
This transmission is
intended only for the use of the addressee and may contain confidential or
legally privileged information.
If you receive this transmission by error, please notify the author immediately
by mail and delete all copies of this transmission and any attachments.
Any use or dissemination of this communication is strictly prohibited by the
"Privacy-Code", D.Lgs. 196/2003 and may lead to penal prosecution and
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P Think before you print
From:
Yi Zhang [mailto:YiZhang@dmu.ac.uk]
Sent: Monday, 06 August, 2012
14:40
To: Avesani Stefano; saleh saadi;
bjoern.nienborg@ise.fraunhofer.de
Cc: trnsys-users@cae.wisc.edu;
jsantv@gmail.com
Subject: RE: [TRNSYS-users] jEPlus
for TRNSYS parametrics
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.
IESD, De Montfort
University, United Kingdom
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
Viale Druso 1, I-39100 Bolzano
t +39 0471 055 654
f +39 0471 055 699
stefano.avesani@eurac.edu
www.eurac.edu
This transmission is intended
only for the use of the addressee and may contain confidential or legally
privileged information.
If you receive this transmission by error, please notify the author immediately
by mail and delete all copies of this transmission and any attachments.
Any use or dissemination of this communication is strictly prohibited by the
"Privacy-Code", D.Lgs. 196/2003 and may lead to penal prosecution and
liability for damages.
P
Think before you print
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?
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, ...}".
IESD,
De Montfort University, United Kingdom
Hi
Yi,
I just had a short look at it and did not find an option to vary sets of
values, e.g. if I vary a location I need to specify the name of the weather
data file, the latitude, shift in solar time and possibly some other values. If
there is this option and I did not see it, please ignore my comment.
Regards,
björn
Am 07.05.2012 13:43, schrieb Yi Zhang:
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.
IESD,
De Montfort University, United Kingdom
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-- 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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