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2023 12 13 coordination

Michael Wetter edited this page Dec 13, 2023 · 9 revisions

IBPSA Modelica Working Group

Date: December 13, 2023, 8:00 - 9:00 Pacific Times.

The purpose of this meeting is to coordinate the Modelica IBPSA Working Group.

Meeting information

Join from PC, Mac, Linux, iOS or Android: https://lbnl.zoom.us/my/mwetter

Or iPhone one-tap (US Toll): +14086380968,6614042296# or +16465588656,6614042296#

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

Agenda

Miscellanous (Doodle January meetings)

Presentation (Solar thermal Jelger Jansen)

ATES model (Alessandro Maccarini)

ISO 13790 models (Alessandro Maccarini)

PV collector, battery and electrical component models (Laura Maier)

Modular heat pump (Fabian Wüllhorst)

New state selection (Michael Wetter)

Integration of new models into the library

OpenSCALING project updates

Progress on pull requests, https://github.com/ibpsa/modelica-ibpsa/pulls

Participants

| Michael Wetter, LBNL

Minutes

ATES model

Alessandro is currently working on validation against measurements (paper under preparation). Also exploring the need of adding vertical heat conduction between the aquifer and the top and bottom ground layers.

ISO 13790 models

Alessandro expects to have time to work on the new BESTEST validations in Feb/Mar next year.

PV collector, battery and electrical component models

One pull request ready. Paper presented. No updates since pull request comments, work in progress.

Modular heat pump

https://github.com/ibpsa/modelica-ibpsa/pull/1628.

New state selection

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.

OCT has been updated and it is a work in progress.

Integration of new models into the library

New models to be developed/integrate:

  • Discussions about others and future development, such as
    • APPROVED
      • enthalpy and energy recovery wheel
      • validation of models
      • CDL integration
      • preconfigured controls
    • NEED MORE DISCUSSION
      • thermal storage
      • better dynamic ground coupling of long (uninsulated) district pipes
      • CHP and organic Rankine cycle
      • more geothermal (horizontal loop, slinky loop, others)

OpenSCALING project updates

Kick-off meeting in November. If interested in an advisory board work with Oliver Lenord to issue NDA contract. Come up with requirements:
data source large models (compilation, simulation, optimization, UQ) provide library of models computationally expensive ones numerically problematic ones (see also https://ibpsa.github.io/modelica-challenge-problems/)

New action items

Previous action items