[Equest-users] Pump & Aux. Energy Use
Cox, Christopher
ccox at nexant.com
Thu Dec 29 08:39:01 PST 2011
Hello Everyone,
In preparing a baseline simulation, I have noticed the "Pump & Auxiliary" energy is higher than anticipated. The only circulation loops included in the building are HW and DHW. DHW does not include a pump. Heating is provided using gas boilers and HW coils throughout the building. The 6.65 kW HW pump is controlled using a VFD. The hourly reports for "Pump & Aux." energy indicate a non HW Pump load that I cannot account for. The load does appear to modulate with the heating load. I have included a graph of the hourly reports for "Pump & Auxiliary" and HW pump electricity use below.
Does anyone know what equipment would be included for "Pumps & Auxiliary" energy use, in addition to the HW pump?
[cid:image003.png at 01CCC60D.B214E4D0]
Thanks,
Christopher Cox ■ Engineer ■ Demand Management(DM)
Nexant, Inc. ■ 4021 S 700 E #250 ■ SLC, UT 84107 ■ O| 801.639.5632 ■ F| 801.266.4786 ■ E| ccox at nexant.com<mailto:ccox at nexant.com>
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