2021 08 11_meeting

SOEP Coordination meeting

Date: August 11, 2021, 8:15am-9am Pacific Times

The purpose of this meeting is to coordinate the Modelica integration for SOEP.

Meeting information

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Agenda

1. Previous action items
2. Preparation for lab call
3. Modelon
4. Stuart: FMI-QSS
5. Kyle, Michael: EnergyPlus-Modelica coupling.
6. Other items

Participants

Kyle Benne

Sen Huang

Jianjun Hu

Stuart Mentzer

Joshua New

Baptiste Ravache

Michael Wetter

Minutes

Milestones

LBL AOP 6/30 (go/no-go): Posted beta version of Spawn (jointly with NREL, Objexx and Modelon)

LBL AOP 9/30: Modelica Buildings Library release

NREL AOP 9/30: Software release including doc that defines how to conduct a Spawn simulation

Lab call

To be discussed next call.

Modelon

No discussion.

Compiler integration

No discussion.

FMI-QSS

Stuart to work on Python binding until OCT is fixed.

EnergyPlus-Modelica coupling

No discussion.

Issues are at https://github.com/lbl-srg/modelica-buildings/issues?q=is%3Aissue+is%3Aopen+label%3Aspawn

Next, work on

• Spawn FMUs are not yet self contained, https://github.com/lbl-srg/modelica-buildings/issues/2054 Should spawn.exe call be replaced by a call to a library function, with spawn.exe a wrapper for debugging? Michael to write up a specification for the implementation.
• Buildings library to report last E+ fatal error, https://github.com/lbl-srg/modelica-buildings/issues/2521

• [For FY21, Q2] Kyle to fix schedule: https://github.com/lbl-srg/modelica-buildings/issues/2000

  (Kyle either fixes it, or proposes new wording for https://lbl-srg.github.io/soep/softwareArchitecture.html#sending-input-to-energyplus)

• [For FY21, Q2] Kyle to look into numerical instability (walls may be initialized to wrong temperature). See for example Experimental/EnergyPlus/Examples/VAVReheatRefBldgSmallOffice/FloorOpenLoop. The temperature in the attic should not raise in the first hour. (Pending since Nov. 2019)
• Remove warnings issued by EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/2220
• Support negative start time in EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/1938

Other items

None.

New action items

Michael to write a specification for how to invoke spawn executable that allows multiple Modelica Buildings Libraries and associated Spawn versions.

Previous action items

Michael to set up a planning call with OpenStudio team to better understand integration. - Done.