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NC-2009 EAc1:Optimize Energy Performance

Central Plant Chilled Water + Onsite electric HW boiler

Dear all, I'm modeling an all electric university building that is 32,000 sf/5 floors with chilled water from a central plant and hot water from an onsite electric boiler. If Performance Option 1 (Steamlined Path) is chosen for system modeling, it seems like : Cooling water Side (Proposed to Baseline): Purchased Chilled Water translates Purchased Chilled Water Cooling air side (Proposed to Baseline): AHU with VAV terminal units, instead of translating to System 6 (packaged VAV), translates to System 8 (VAV) Heating (Proposed to Baseline): Electric HW boiler based terminal unit reheat translates to System 6 Electric resistance reheat Am I looking at this right? Thank you, Ramana.

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Mon, 09/24/2012 - 15:09

The baseline is all system 8 according to the DES. You don't break down the system by heating and cooling separately. In this case it does not matter since system 6 and 8 are both electric resistance heat.

Tue, 09/25/2012 - 15:37

Thank you Marcus, that helps.

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