[Equest-users] VAV System - high cooling energy in winter

[Nick Caton]

An aside:  any PD2 file opened in notepad or similar text editors will clarify which version of eQuest was used to create it in the first few lines.

In this case, 3.65:
[cid:image001.png at 01CF9ACD.CF20CC00]

[cid:489575314 at 22072009-0ABB]

NICK CATON, P.E.
SENIOR ENGINEER

Smith & Boucher Engineers
25501 west valley parkway, suite 200
olathe, ks 66061
direct 913.344.0036
fax 913.345.0617
www.smithboucher.com

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Tuesday, July 08, 2014 4:55 PM
To: Travis Miller; Michael Campbell; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] VAV System - high cooling energy in winter

Which version of eQuest, 3.64 or 3.65?

John R. Aulbach, PE

On Tuesday, July 8, 2014 1:47 PM, Travis Miller <tmiller at dcengineering.net<mailto:tmiller at dcengineering.net>> wrote:

You have the cooling control set at constant – do you know if the existing building has a sequence of operation to follow?

For a recent  new building which had a VAV air handler with a chilled water coil (water delivered from an aquifer in this case, VFD drives, etc.) I used the below parameters, which appear to have a large effect on your model.

Travis

[cid:image003.png at 01CF9ACD.CF20CC00]



From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Michael Campbell
Sent: Tuesday, July 08, 2014 12:58 PM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: [Equest-users] VAV System - high cooling energy in winter

Hi,

I’m trying to model an existing building with a chilled water VAV system.  The chilled water usage is much higher in the winter time than expected.  Is this a common issue?  Does anyone have any suggestions for fixing this?  My files are attached.

Mike Campbell, E.I.T., LEED AP O+M
Sustainability Specialist
Sustainable Solutions Corporation
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