Commissioning DES if waste heat is recovered from process

Dave Hubka

Practice Leader - Sustainability

EUA

LEEDuser Expert

510 thumbs up

May 26, 2015

Our project includes an existing (more than three years old) DES that serves both the process equipment and building htg/clg loads. The designer would like to recover heat from the process equipment and reuse to heat the building. To achieve EAc3 would we be required to commission the process equipment and DES and transmission/distribution system if we were only recovering waste heat? I believe the answer to be no since our proposed energy model does not account for energy efficiency savings from the DES.

Post a reply

Scott Bowman

LEED Fellow

Integrated Design + Energy Advisors, LLC

LEEDuser Expert

377 thumbs up

Tue, 05/26/2015 - 20:12

David, as most of my answers start, I think it depends! If all the heat recover occurs in the DES, and you want to claim the efficiencies, then you would have to commission the DES per the guidelines, especially for enhanced. If the equipment is all in the building being served then you only have to commission the parts that are related to the connection between the heat recovery. Based on your last sentence, it appears that if the energy model is not including any savings, it must be occurring in the DES, then no, you would not have to commission it. If you claim it, you commission it...sounds like a tee-shirt!

Dave Hubka

Practice Leader - Sustainability

EUA

LEEDuser Expert

510 thumbs up

Tue, 05/26/2015 - 21:40

Thanks for the quick response Scott, much appreciated. "if you claim it, you commission it" ... i like it.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.

You are currently logged in under an enterprise account

FAQs about EAc3 :

Commissioning DES if waste heat is recovered from process

You rely on LEEDuser. Can we rely on you?

Add new comment