Force a dummy value for SHW in modelica loads even if not present

[vtnate]

Any background context you want to provide?

MBLv10 requires a value in the Service Hot Water column of the loads timeseries, even if it isn't used. Modelica-Builder has a feature that can update values in .mos files, so lets use that.

The UO SDK populates this column as of v0.11.0 with urbanopt/urbanopt-reporting-gem#143. Load files generated before then may be missing this data.

What does this PR accomplish?

• Uses the modelica-builder method to set SHW load to 1/10 of the heating load or 5000W, whichever is higher.
• Improve logging a bit

How should this be manually tested?

Generate a model using timeseries data that does not have the SHW column populated. The updated file is modelica_project/Loads/Resources/Data/<buildingname>/<load_timeseries>.mos

[nllong]

I wish we chatted... I wrote a helper method to do this in the 5G stuff. The method is ultimately in Modelica Builder.

https://github.com/urbanopt/geojson-modelica-translator/blob/develop/geojson_modelica_translator/modelica/GMT_Lib/DHC/DHC_5G_waste_heat_GHX_variable.py#L67-L77

mos_file = ModelicaMOS(save_filename)
total_heating_load += mos_file.retrieve_header_variable_value('Peak space heating load', cast_type=float)
total_cooling_load += mos_file.retrieve_header_variable_value('Peak space cooling load', cast_type=float)
peak_water = mos_file.retrieve_header_variable_value('Peak water heating load', cast_type=float)
total_swh_load += peak_water
if peak_water == 0:
    peak_heat = mos_file.retrieve_header_variable_value('Peak space heating load', cast_type=float)
    peak_swh = max(peak_heat / 10, 5000)

    mos_file.replace_header_variable_value('Peak water heating load', peak_swh)
    mos_file.save()

[vtnate]

@nllong You mean... have the modelica package do the modelica editing, and keep log messages consistent?

[nllong]

@nllong You mean... have the modelica package do the modelica editing, and keep log messages consistent?

I know, it's complicated. haha

[nllong]

thanks for using Modelica Builder! love it.