NatLabRockies / NatLabRockies/OpenStudio-HPXML
Geothermal Heat Pump Follow-up Issues
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@yzhou601 is already working on this.
Since Apr 9, 2025.
bug
enhancement
priority medium
- Dominant language
- Ruby
- Stars
- 70
- Forks
- 30
- Avg merge
- 4d 4h
- Merged PRs (30d)
- 5
Description
The issues that haven't been resolved in https://github.com/NREL/OpenStudio-HPXML/pull/1878 :
- Check results with E+ bugfix in OS 3.10: https://github.com/NREL/EnergyPlus/pull/11005
- Allow desuperheater with "experimental" geothermal models with OS 3.10: https://github.com/NREL/EnergyPlus/pull/10945 https://github.com/NREL/OpenStudio-HPXML/pull/2124
- Use gross SHR, remove SHR user input
- Reconcile difference between standard & experimental models. It might be ~20% difference for a single speed GHP with identical inputs? Ideally we would go forward with the better model and not support both.
- Resolve E+ error for low ground conductivity test files: Ground side water temperature being too low/high. Probably only affects the experimental model.
- Add capacity net to gross conversion
- Replace hardcoded bypass factors and curves in HVAC sizing for standard GHP models
- Remove pump mass flow rate EMS for var speed system if E+ issue https://github.com/NREL/EnergyPlus/issues/10936 get fixed, and check the two speed system fwf performance curve input/output to make sure the pump is running at a constant flow rate for part of a timestep.
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