[Equest-users] Savings from Demand Control ventilation in eQuest

[Sami, Vikram]

John,

78% savings in fan energy and 64% in heating seems high to me. Sounds like your base building is cranking ventilation air pretty hard.

Vikram Sami, LEED AP
Sustainable Design Analyst
1382 Peachtree St. NE, Atlanta, GA 30309
t: 404-443-7462    f: 404.892.5823       e: vikram.sami at perkinswill.com   www.perkinswill.com<http://www.perkinswill.com/>
Perkins+Will.  Ideas + buildings that honor the broader goals of society


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Wednesday, June 30, 2010 11:05 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Savings from Demand Control ventilation in eQuest

All:

I realize I am asking for relative numbers, but I am unsure how much Demand Control Ventilation can actually save a building. I ran the DCV Up/Down scenario on a 150,000 sf office in Oregon, where the fans ran 24/7 (and the people weren't there at night). BTW, this was a VAV/VFD system.

My results show a 15% savings in cooling, a 64% savings in heating, and a 78% savings in fan.

Reasonable? Or am I "mis-simulating ??"


John R. Aulbach, PE, CEM
Senior Energy Engineer
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Partner Energy
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