[Equest-users] Excessive pumping power consumption
John Aulbach
jra_sac at yahoo.com
Tue Dec 3 13:01:57 PST 2013
Javel:
Did you put the entity (chiller, boiler) that the pump is serving on DEMAND? Otherwise, the pump will never stop.
John R. Aulbach, PE
________________________________
From: Javed Iqbal <eee.javed at gmail.com>
To: equest-users <equest-users at lists.onebuilding.org>
Sent: Tuesday, December 3, 2013 12:58 PM
Subject: [Equest-users] Excessive pumping power consumption
Dear All,
I'm simulating a large commercial building for LEED compliance. There i am facing a major issue in pumping power annual consumption. The proposed case pumping power is almost 7 times higher than the ASHRAE baseline case which has great impact on my overall anticipated savings. I've generated hourly report to see the pump operations power and found propose case pump is running all year round whereas baseline is running as per building operating hours. I've thoroughly checked all the schedules assigned and it seems fine to me. My gut feeling is there is some load which is driving the pump to run throughout the year. I would appreciate if someone can give expert advice to troubleshoot this.
Thanks in Advance!!
--
Javed Iqbal, LEED AP, CEA
Sr. Energy Analyst
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