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

[Chris Yates]

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 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 
> [mailto:bldg-sim-bounces at lists.onebuilding.org] *On Behalf Of *Chris Yates
> *Sent:* Thursday, March 15, 2012 7:24 AM
> *Cc:* bldg-sim at lists.onebuilding.org
> *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 
> <mailto:yjhuang at whiteboxtechnologies.com>
> www.whiteboxtechnologies.com <http://www.whiteboxtechnologies.com>
> (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
>
> Email: chris.malcolm.yates at gmail.com 
> <mailto:chris.malcolm.yates at gmail.com> 
> <mailto:chris.malcolm.yates at gmail.com>
>
> 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 
> <mailto:chris.malcolm.yates at gmail.com>
>
> Skype: christopher.m.yates
>

-- 

Chris Yates C Eng MCIBSE

/Building Physics Consultant/

Tel:+447960731576

Email: chris.malcolm.yates at gmail.com

Skype: christopher.m.yates

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