Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Hi,
It is a bit unclear how the space cooling is provided in the actual design (proposed model)? I assume that the space cooling is provided by the VAV systems with chilled water coils, and the same chiller plant is used for both space cooling and process cooling. Right?
Actually, I think Option 2) would be more appropriate. The Baseline HVAC system type should be consistent with Appendix G ( DX) and the process cooling should be modeled the same between the Baseline and Proposed models. You can simply run the Proposed model without process cooling and with the process cooling to calculate the energy difference, and charge the Baseline model with that value.
If you want to take some credit for the process cooling , then you would need to do exceptional calculations (ECM).
Have you checked these LIs?
http://www.usgbc.org/content/li-10291
http://www.usgbc.org/content/li-10237
