[Bldg-sim] [Equest-users] Problems of energy simulation(HVAC part) in winter

[Jeff Haberl]

Chris,



...to match actual data, you'll need 2 runs...Jan - Feb and Nov - Dec, then merge the two runs.



Jeff



8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=)8=?

Jeff S. Haberl, Ph.D.,P.E., FASHRAE..............jhaberl at tamu.edu

Professor............................................................Office Ph: 979-845-6507

Department of Architecture.............................Lab Ph:979-845-6065

Energy Systems Laboratory.............................FAX: 979-862-2457

Texas A&M University.....................................77843-3581

College Station, Texas, USA, 77843..................URL:www.esl.tamu.edu

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________________________________
From: bldg-sim-bounces at lists.onebuilding.org [bldg-sim-bounces at lists.onebuilding.org] on behalf of Chris Jones [cj at enersave.ca]
Sent: Monday, December 03, 2012 8:29 AM
To: chik king ho; bldg-sim at lists.onebuilding.org; Equest
Subject: Re: [Bldg-sim] [Equest-users] Problems of energy simulation(HVAC part) in winter

Just a quick guess.  Have you confirmed the outdoor air entering the building (infiltration plus ventilation air) during those winter months?  Also confirm HVAC systems run hours.  A balancing report is a good place to start.  Logging fan and pump hours helps especially if the BAC is already keeping those logs.



At 09:50 PM 02/12/2012, chik king ho wrote:
Hi all,

I have simulated a building in Hong Kong by using Equest. In Hong Kong, winter is from Nov. to Feb. But I found that my simulation in HVAC part (end-use: space cooling + heat reject + vent. fan + pumps & aux.) in winter is much lower than the actual energy consumption in HVAC. So, could anyone help me to find why this happens and how can I solve it? inp and pd2 flies are attached for reference.

Henry


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>>
Christopher Jones, P.Eng.
Suite 1801, 1 Yonge Street
Toronto, ON M5E1W7
Tel. 416-203-7465
Fax. 416-946-1005
email cj at enersave.ca
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