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cse-sim / cse

California Simulation Engine
BSD 3-Clause "New" or "Revised" License
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Feature Request: ASHRAE 55 Standard Effective Temperature output #331

Open sisray921 opened 2 years ago

sisray921 commented 2 years ago

The feature would allow evaluation of Standard Effective Temperature and other associated metrics within the realm of ASHRAE 55 comfort analysis.

sisray921 commented 2 years ago

The inspiration for this is to have internal tools to evaluate overheating in zones as one form of 'resilience' metric. There is currently a workflow that involves getting relevant outputs from the CSE model and feeding them into the CBE Thermal Comfort Tool, or perhaps using using the pythermalcomfort python package.
That is-- not essential functionality, but it could someday be a handy thing to have in here.

nealkruis commented 2 years ago

CSE used to have thermal comfort calculations, but they were part of a file that had ambiguous copyright ownership. In theory, the capability could be replicated without substantial effort.

chipbarnaby commented 2 years ago

Is there consensus on what metrics are standard or useful? My recollection is that the comfort code did a basic ISO 7730 calc that yielded PMV and PPD values. Is that useful?

sisray921 commented 2 years ago

I'll admit that I'm not super fluent with the specific calculations, but the metrics referenced for overheating were Wet Bulb Globe Temperature and Standard Effective Temperature (I think the latter may be more applicable to interior spaces?).
In any case, the calculation does include inputs that don't appear to be currently included in CSE (or must be assumed)-- I'm thinking specifically about clo and met.
At any rate-- I appreciate the discussion and consideration!!!