[Bldg-sim] Really quick question

Cheney chenyu73 at gmail.com
Tue Nov 9 11:02:43 PST 2010


I guess it is because the lighting generates internal loads which will
benefit heating in winter. The reduction of lighting will reduce the
internal loads which is more predominant than the savings from infiltration.
Then you got higher gas requirement in your model.

Cheney

On Tue, Nov 9, 2010 at 10:36 AM, John Aulbach <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
>  ------------------------------
>
> *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 | jaulbach at ptrenergy.com <%7C%20jaulbach at ptrenergy.com>
>
>
>
>
>
>
>
>
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