Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
Ask Your Question
1

How are CO2 concentration values initialised? [closed]

asked 2020-11-09 10:36:30 -0600

Adrien gravatar image

I added a ZoneAirContaminantBalance object to my model and noticed that the zones with occupancy but without natural nor mechanical ventilation systems have a very high CO2 concentration value since the first timestep (between 6000 and 10000 ppm). Where come those values from? It looks a bit as if energyplus sizing initialized those values with the accumulation of CO2 for about a year instead of using the outdoor concentration. Is that the case?

edit retag flag offensive reopen merge delete

Closed for the following reason the question is answered, right answer was accepted by Adrien
close date 2020-11-12 05:54:54.441127

1 Answer

Sort by ยป oldest newest most voted
1

answered 2020-11-12 05:54:25 -0600

Adrien gravatar image

I found the cause for the abnormally high CO2 concentration initialisation values and created an enhancement request here: https://github.com/openstudiocoalitio...

Regarding this topic's main question: I guess the answer is "Yes", values are initialized with the sizing results. Thus I will close this, but feel free to comment if you can give me more details :-)

edit flag offensive delete link more

 

Question Tools

1 follower

Stats

Asked: 2020-11-09 10:36:30 -0600

Seen: 59 times

Last updated: Nov 12 '20