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

Revision history [back]

click to hide/show revision 1
initial version

After working with this for a while I ended up going back to my second method where the cook line was a separate thermal zone. This approach was necessary due to Error 53 (in comments section above).

The assignments were as follows: AirCondgSys = MAU-1; VentSys = MAU-1; ExhaustSys = PCU-1

At the space level I made sure that the "process exhaust" box was checked. I also made sure that Ventilation Air quantity was updated to match the MAU-1 supply air. This was the crucial step I was missing in my original study. It turns out that for systems serving kitchens the Baseline outside air value tracks the value entered for the proposed design. (It's actually more complex than this; see the attached screen clip from the ACM.)C:\fakepath\Untitled.png

This methodology resulted in the baseline system energy increasing enough to not penalize me for my MAU.

After working with this for a while I ended up going back to my second method where the cook line was a separate thermal zone. This approach was necessary due to Error 53 (in comments section above).

The assignments were as follows: AirCondgSys = MAU-1; VentSys = MAU-1; ExhaustSys = PCU-1

At the space level I made sure that the "process exhaust" box was checked. I also made sure that Ventilation Air quantity was updated to match the MAU-1 supply air. This was the crucial step I was missing in my original study. It turns out that for systems serving kitchens that have process exhaust; the Baseline outside air value tracks the value entered for the proposed design. (It's actually more complex than this; see the attached screen clip from the ACM.)C:\fakepath\Untitled.png

This methodology resulted in the baseline system energy increasing enough to not penalize me for my MAU.

After working with this for a while I ended up going back to my second method where the cook line was a separate thermal zone. This approach was seemed necessary due to Error 53 (in comments section above).

The assignments were as follows: AirCondgSys = MAU-1; VentSys = MAU-1; ExhaustSys = PCU-1

At the space level I made sure that the "process exhaust" box was checked. I also made sure that Ventilation Air quantity was updated to match the MAU-1 supply air. This was the crucial step I was missing in my original study. It turns out that for systems serving kitchens that have process exhaust; the Baseline outside air value tracks the value entered for the proposed design. (It's actually more complex than this; see the attached screen clip from the ACM.)C:\fakepath\Untitled.png

This methodology resulted in the baseline system energy increasing enough to not penalize me for my MAU.