Hey guys!
Currently working on my thesis project and I am looking into passive buildings, therefore I want to naturally ventilate my space. The vent_ctrl component is already a great start but I would love to enhance it with co2 concetration. Meaning that if the temps fall into the defined range OR the co2 concentration exceeds a predefined limit, the windows open.
I also stumbled already across this blog post from 2018
[Natural ventilation based on CO2 sensors]
but I tried the comments and my result was not satisfactory. So I wanted to revive the discussion.
Currently my setup is the following that I am creating an .idf file with my temp based vent ctrl and then manipulating the .idf with a python component (written with the help of Claude) to create a new comprehensive EMS component that follows this logic:
IF Occupied AND ((Temp OK) OR (CO2 > 1000)) → Open.
Then the newly created idf is run through the run idf component.
Funnily enough it seems to somehow work but as soon as I change my schedule a bit I sometimes get co2 concentrations around 200 ppm (which is below my set outside co2 concentration of 420 ppm).
It’s a bit complicated to describe the whole issue which is why I was just wondering if anyone out there found a efficient way to implement this.
Thanks guys, happy for any leads!
