[Bldg-sim] Really quick question

[Michael A. Eustice]

Do you mean that the net gas savings got worse or better?  (Compared to when you summed the gas savings individually)

Michael

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Carol Gardner
Sent: Tuesday, November 09, 2010 1:47 PM
To: John Aulbach
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Really quick question

Because the air leaking in the windows in the base case was cold, presuming you were using the gas for space heating, that is. It's just a guess....
On Tue, Nov 9, 2010 at 10:36 AM, John Aulbach <jra_sac at yahoo.com<mailto:jra_sac at yahoo.com>> wrote:

I am doing EEM modeling, with both gas and electric effects on a multi family unit in Los Angeles.



One EEM is a lighting reduction. Another is weather stripping, which reduces infiltration.



I add up the EEMs individually and get a gas savings (negative from the lighting reduction obviously). I add them together in a COMBO run (where they interact) and the gas savings goes UP !!



WHY !!!!


John R. Aulbach, PE, CEM
Senior Energy Engineer
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Partner Energy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745
www.ptrenergy.com<http://www.ptrenergy.com/> | jaulbach at ptrenergy.com<mailto:%7C%20jaulbach at ptrenergy.com>






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--
Carol Gardner PE

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