[Equest-users] Run-Around Energy Recovery

Daric Adair Daric.Adair at hendersonengineers.com
Thu Nov 30 14:51:49 PST 2017


All;
Have a project using a run-around loop to recovery sensible energy from laboratory exhaust fans. I have reviewed the archives and my own memory, but this is leaving me scratching my head. I also recall a recent (maybe?) discussion on Zone vs System exhaust that may directly feed into this  - but cannot find it.

If the lab hood exhaust is put in at the zone level, eQuest won't do energy recovery on this air-stream, as zone exhaust goes 'outside', yes?

My current thought is to configure the VAV AHU to have either 'Sensible HX' or 'Heat Pipe' and also have self-contained ERV fans. I'd input the Exhaust fans in as scheduled and then put a low/0 power fan for supply since there really isn't such. The OA is moved by the primary supply fan. I'd also calculate a 'HX power' or the run-around pump. I'd have 0 zone exhaust; exhaust only at the System level.

Can anyone comment on this approach or advise on how to best approach?


Thanks,
DARIC R ADAIR PE, CEM, BEMP
Mechanical Engineer, Energy Analyst

Henderson Engineers
8345 Lenexa Drive, Suite 300  |  Lenexa, KS 66214
Tel (913) 742-5530
daric.adair at hendersonengineers.com<mailto:daric.adair at hendersonengineers.com>

hendersonengineers.com<http://www.hendersonengineers.com/>

Licensed in KS

Sending me large files? Please use Henderson File Share<https://apps.hendersonengineers.com/FileShare/Upload?to=daric.adair@hendersonengineers.com> | TX ID #F-001236


________________________________

This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. This communication represents the originator's personal views and opinions, which do not necessarily reflect those of Henderson Engineers, Inc. If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify administrator at hendersonengineers.com.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20171130/a4e9a206/attachment-0002.htm>


More information about the Equest-users mailing list