[Bldg-sim] working out the 95 percentile of wind speed

Linda Lawrie linda at fortlawrie.com
Thu Mar 15 15:50:02 PDT 2012


Each of the EPW files have a "stat" file.

But you might investigate the "DView" software.

I'm not quite sure what you're after -- detailed analysis 
(spreadsheetable) or just viewable.


On 15.03.2012 16:39, Chris Yates wrote:
> Thanks Dru,
>  It's actually minimum wind speed occurrences that I'm interested in 
> -
> when we aren't generating from the wind turbine. Perhaps the best
> solution is just get to grips with the E+ WTG model and use hourly
> data.
>  Best
>  Chris
>
>  On 15/03/2012 11:39, Dru.Crawley at bentley.com [12] wrote:
>
>> The design conditions in the ASHRAE Handbook (which CIBSE uses some
>> of) includes Extreme Annual Wind Speed of 1%, 2.5%, and 5%. Have a
>> specific location in mind?
>>
>> FROM: bldg-sim-bounces at lists.onebuilding.org [1]
>> [mailto:bldg-sim-bounces at lists.onebuilding.org [2]] ON BEHALF OF
>> Chris Yates
>> SENT: Thursday, March 15, 2012 7:24 AM
>> CC: bldg-sim at lists.onebuilding.org [3]
>> SUBJECT: Re: [Bldg-sim] working out the 95 percentile of wind speed
>>
>>
>> Dear All,
>>
>> Thank you very much. This is all useful stuff. I guess binning
>> isn't in the engineering culture over here in the UK in the same way
>> it is in the UK. We tend merely to use hourly weather data to do
>> simulations and can take design data from CIBSE (most of the time).
>>
>> I'll definitely undertake these exercises. In the mean time, I
>> wrote some very crude vba to step through the weather data and
>> calculate its effect on battery charge which I'll be happy to share
>> once I've tidied it up a bit.
>>
>> Cheers
>>
>> Chris
>>
>> On 15/03/2012 02:36, Joe Huang wrote:
>>
>> Can't you just sort the data and then look at the values
>> corresponding to the percentiles of interest, i.e.,
>> 8322 for 95% percentile of 8760 hourly data? Am I missing something
>> here ? The only wrinkle in respect to wind speeds is that the hourly
>> values are spot measurements, and not time-averaged over the hour.
>>
>> Joe
>>
>> Joe Huang
>> White Box Technologies, Inc.
>> 346 Rheem Blvd., Suite 108D
>> Moraga CA 94556
>> yjhuang at whiteboxtechnologies.com [4]
>> www.whiteboxtechnologies.com [5]
>> (o) (925)388-0265
>> (c) (510)928-2683
>> "building energy simulations at your fingertips"
>>
>> On 3/14/2012 9:09 AM, Chris Yates wrote:
>>
>> Dear bldg-sim'rs,
>>
>> I usually take this kind of data for granted (our industry has been
>> commoditized so much!).
>>
>> Statistics not being my strong point, does anybody know of any good
>> web resources for working out percentile data of various weather
>> characteristics? I have hourly data available and would like to
>> undertake the task in excel (or openoffice).
>>
>> Thanks
>> --
>>
>> Chris Yates C Eng MCIBSE
>>
>> /Building Physics Consultant /
>>
>> Tel:+447960731576 [6]
>>
>> Email: chris.malcolm.yates at gmail.com [7] [8]
>>
>> Skype: christopher.m.yates
>>
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>> --
>>
>> Chris Yates C Eng MCIBSE
>>
>> _Building Physics Consultant_
>>
>> Tel: +447960731576
>>
>> Email: chris.malcolm.yates at gmail.com [11]
>>
>> Skype: christopher.m.yates
>
> --
>
> Chris Yates C Eng MCIBSE
>
> _Building Physics Consultant_
>
> Tel: +447960731576
>
> Email: chris.malcolm.yates at gmail.com [13]
>
> Skype: christopher.m.yates
>
> Links:
> ------
> [1] mailto:bldg-sim-bounces at lists.onebuilding.org
> [2] mailto:bldg-sim-bounces at lists.onebuilding.org
> [3] mailto:bldg-sim at lists.onebuilding.org
> [4] mailto:yjhuang at whiteboxtechnologies.com
> [5] http://www.whiteboxtechnologies.com
> [6] http://mail.fortlawrie.com/Tel:+447960731576
> [7] mailto:chris.malcolm.yates at gmail.com
> [8] mailto:chris.malcolm.yates at gmail.com
> [9] 
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> [10] mailto:BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
> [11] mailto:chris.malcolm.yates at gmail.com
> [12] mailto:Dru.Crawley at bentley.com
> [13] mailto:chris.malcolm.yates at gmail.com




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