NatLabRockies / NatLabRockies/EnergyPlus
Allow on/off operation to simulate cycling of HVAC equipment
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- Dominant language
- C++
- Stars
- 1.6k
- Forks
- 490
- Avg merge
- 6d 21h
- Merged PRs (30d)
- 22
Description
Problem: HAVC system is not simulated based on real operation conditions with part load performance in a small time step
Rationale: HVAC system operation may not turn on and off very quickly in a small time step based on system configuration. For example, the system configuration requires HVAC system to turn on with a minimum operation time. When it is off, it requires minimum off time period. The existing E+ simulates HVAC system operation based on load only, so that the system operates at part load condition only and the operation is unable to be simulated realistically.
Solution: Create a new object for an on/off thermostat to force system either on or off with minimum operation time and off time, so that HVAC system operation can be simulated more realistically.
Migrated from UserVoice feedback from @lgu1234
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the referenced DesignDocuments/EnhancementList/HVAC_General_2013_05.doc and the issue's rationale. Clarify the proposed on/off thermostat object's scope, including minimum operation and off-time behavior, and define how completion will demonstrate realistic cycling rather than only part-load operation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100