[Equest-users] Fwd: I got 26% OF HOURS OUTSIDE OF THROTTLING RANGE after rotating my model by 5 degrees?

[Yf Sun]

Hi Joe
I also suspected that the under cooled hours may caused by window angular
property, but the loads reports you indicated show there's no big swing on
the solar heat gain for 15 degree azimuth compared to 10 and 20 degrees
azimuth, however i found there's a great difference in peak system cooling
load in SS-J reports, the peak load for 15 azimuth is about a half of the
load for 10,20 azimuth, so I guess the DOE program may uncorrectly
calculated the system peak load？but when i used your weather file for
simulation the unmatch hours disappeared!


On Thu, May 23, 2013 at 1:01 PM, Joe Huang <yjhuang at whiteboxtechnologies.com
> wrote:

>  孙一峰,
> Ivan 是不是你的英文名字？
> The only difference between the different azimuths is the solar radiation.
> I think you should compare the summary loads report (LS-E by space, or
> LS-F for the whole building) for the different orientations and see how
> much the solar heat gains, especially through the windows, change.  If you
> really want to get into it, you can also print out hourly reports for the
> solar heat gains, heating and cooling loads for the ground floor zones.
> You can also switch weather files and see what happens.  I will send you by
> e-mail a different weather file for Wuhan that I've created.
> Good luck.
>
> Joe
>
> Joe Huang    黄昱
> White Box Technologies, Inc.
> 346 Rheem Blvd., Suite 108D
> Moraga CA 94556
> yjhuang at whiteboxtechnologies.com
> http://weather.whiteboxtechnologies.com
> http://www.whiteboxtechnologies.com
> (o) (925)388-0265
> (c) (510)928-2683
> "building energy simulations at your fingertips"
>
>
>
>
> On 5/22/2013 7:02 PM, Yf Sun wrote:
>
> Hi dear equesters!
>  I was doing orientation study on my office module i can not figure out
> why i got 26% OF HOURS OUTSIDE OF THROTTLING RANGE in BEPU report when i
> set the azimuth at 15 degrees for ground floor, the system worked in
> throttling range when azimuth at 10 or 20 degrees! the weather file i used
> is CTYW Wuhan (china).
>
>  I attached the model, reports and the weather file. Any help will be
> appreciated!
>
>
>  --
>  Best regards
>  孙一峰
>
>
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-- 
Best regards
孙一峰
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