<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Thanks Dru,<br>
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.<br>
Best <br>
Chris<br>
<br>
On 15/03/2012 11:39, <a class="moz-txt-link-abbreviated" href="mailto:Dru.Crawley@bentley.com">Dru.Crawley@bentley.com</a> wrote:
<blockquote
cite="mid:0373D25B536A0846862A0635516750B409611D@extprdmbx04.bentley.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 12 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
span.spelle
{mso-style-name:spelle;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);">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? <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<div>
<div style="border-right: medium none; border-width: 1pt
medium medium; border-style: solid none none; border-color:
rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color;
padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;">From:</span></b><span style="font-size:
10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;"> <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Chris Yates<br>
<b>Sent:</b> Thursday, March 15, 2012 7:24 AM<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] working out the 95
percentile of wind speed<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dear All,<br>
<br>
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).<br>
<br>
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.<br>
<br>
Cheers<br>
<br>
Chris<br>
<br>
On 15/03/2012 02:36, Joe Huang wrote: <o:p></o:p></p>
<p class="MsoNormal">Can't you just sort the data and then look
at the values corresponding to the percentiles of interest,
i.e.,
<br>
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.
<br>
<br>
Joe <br>
<br>
Joe Huang <br>
White Box Technologies, Inc. <br>
346 Rheem Blvd., Suite 108D <br>
Moraga CA 94556 <br>
<a moz-do-not-send="true"
href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>
<br>
<a moz-do-not-send="true"
href="http://www.whiteboxtechnologies.com">www.whiteboxtechnologies.com</a>
<br>
(o) (925)388-0265 <br>
(c) (510)928-2683 <br>
"building energy simulations at your fingertips" <br>
<br>
<br>
On 3/14/2012 9:09 AM, Chris Yates wrote: <br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">Dear bldg-sim'rs, <br>
<br>
I usually take this kind of data for granted (our industry has
been commoditized so much!).
<br>
<br>
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).
<br>
<br>
Thanks <br>
-- <br>
<br>
Chris Yates C Eng MCIBSE <br>
<br>
/Building Physics Consultant / <br>
<br>
<a moz-do-not-send="true" href="Tel:+447960731576">Tel:+447960731576</a>
<br>
<br>
Email: <a moz-do-not-send="true"
href="mailto:chris.malcolm.yates@gmail.com">chris.malcolm.yates@gmail.com</a>
<a moz-do-not-send="true"
href="mailto:chris.malcolm.yates@gmail.com"><mailto:chris.malcolm.yates@gmail.com></a>
<br>
<br>
Skype: christopher.m.yates <br>
<br>
<br>
<br>
_______________________________________________ <br>
Bldg-sim mailing list <br>
<a moz-do-not-send="true"
href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a>
<br>
To unsubscribe from this mailing list send a blank message to
<a moz-do-not-send="true"
href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG">
BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</a> <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">-- <o:p></o:p></p>
<div>
<p>Chris Yates <span style="color: rgb(79, 98, 40);">C Eng
MCIBSE</span><o:p></o:p></p>
<p><i>Building Physics Consultant</i><o:p></o:p></p>
<p>Tel: +447960731576<o:p></o:p></p>
<p>Email: <a moz-do-not-send="true"
href="mailto:chris.malcolm.yates@gmail.com">chris.malcolm.yates@gmail.com</a><o:p></o:p></p>
<p>Skype: <span class="spelle">christopher.m.yates</span><o:p></o:p></p>
</div>
</div>
</div>
</blockquote>
<br>
<div class="moz-signature">-- <br>
<div>
<p>Chris Yates <span style="color: rgb(79, 98, 40);">C Eng
MCIBSE</span></p>
<p><i style="">Building Physics Consultant<o:p></o:p></i></p>
<p>Tel:<span style=""> </span>+447960731576</p>
<p>Email: <a class="moz-txt-link-abbreviated" href="mailto:chris.malcolm.yates@gmail.com">chris.malcolm.yates@gmail.com</a></p>
<p>Skype: <span class="SpellE">christopher.m.yates</span></p>
</div>
</div>
</body>
</html>