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

[Yf Sun]

here i attached the reports for 10,15,20 degree azimuths respectively!


On Thu, May 23, 2013 at 2:16 PM, Yf Sun <caselysun at gmail.com> wrote:

> 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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>>
>>
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>
>
> --
> Best regards
> 孙一峰
>



-- 
Best regards
孙一峰
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