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2023 06 02 coordination
Date: June 02, 2023, 8:00 - 9:00 Pacific Times.
The purpose of this meeting is to coordinate the Modelica IBPSA Working Group.
Join from PC, Mac, Linux, iOS or Android: https://lbnl.zoom.us/my/mwetter
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Or Telephone: Dial: +1 408 638 0968 (US Toll) or +1 646 558 8656 (US Toll) Meeting ID: 661 404 2296 International numbers available: https://lbnl.zoom.us/zoomconference?m=_h5BuJ686mPy3rWEyKf4NROxLaeOV5J8
Dre PCM presentation
Modelica working group expert meeting Modelica conference 2023
IBPSA library paper
PV collector, battery and electrical component models (Laura Maier)
Modular heat pump (Fabian Wüllhorst)
New state selection (Michael Wetter)
Equivalent borehole g functions (Massimo Cimmino)
Weekly schedule (Michael Wetter)
Progress on pull requests, https://github.com/ibpsa/modelica-ibpsa/pulls
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Confirmed for Thursday Morning
Michael injured. It's not going to be writte for Modelica conference
Alessandro gave a presentation on Aquifer Thermal Energy Storage (ATES) model that could included on the library.
Outcome of a master thesis.
Model initially developed in Matlab.
Working on Modelica implementation and on how to compute pressure drop. Alessandro has data for pressure drop. Massimo: look at permeability from ground water well pumping. "Leaky well function"
Models are now merged: https://github.com/ibpsa/modelica-ibpsa/pull/1627
Michael suggested to better show the difference between ISO13790 and BESTEST, there is a paper but maybe add to the documentation some of the charts (examples from the python script to generate results for the buildings library).
No time to work in past month.
Make SpeedControlled_Nrpm obsolete, https://github.com/ibpsa/modelica-ibpsa/issues/1704
Michael suggesting to remove models that remove RPM as in input as they behave like [0 1]. IDEAS does not use those, to be checked with Aachen.
Filip to review.
Laura close to pull request, she has some issues with cross checking the results (windows problem in getting reference results, in linux might work): https://github.com/ibpsa/modelica-ibpsa/issues/1575
No update.
https://github.com/ibpsa/modelica-ibpsa/pull/1628.
Different name for the “BlacBoxStarter”? Update on example models (running times)?
No update.
https://github.com/ibpsa/modelica-ibpsa/issues/1412
Michael work on model initialization? Difference of pressure instead of absolute pressure (in theory is better, in numerical simulation it seems inconclusive it depends on the models, scaling seems to work better) Comparison speed vs accuracy? (speed and if models actually run). Maybe use bounded attribute of real variables.
Michael waiting for OCT update.
https://github.com/ibpsa/modelica-ibpsa/pull/1602
It seems more involved than expected, since it requires handle string connectors division 0/0 on OpenModelica, in fluidflow models.
https://github.com/ibpsa/modelica-ibpsa/issues/1716
When simulating more that 1y there are some errors in the diffuse radiation calculation due to cloTim going over the validity range for some of the equations.
Pull request merged into IBPSA
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Expert meeting: Confirmed Thursday Morning