<div><br></div>I think it is worthwhile noting, that the actual-shading-geometry-modeling I mentioned earlier may make more sense for non-linear complex geometric elements, though there is a trade-off between whether you want to spend modeler time deriving an equiv. SC or spend more modeling tool time, extending run-times. This may be different for each project based on how confident you are about accounting for all solar conditions in your simplification approach.<div>
<br></div><div>The other side of the argument is that using a simplification method like a projection-factor which is documented in the 90.1 User's Manual, is very useful for early studies, and actual geometry is not important. I like this method because it provides designer's with flexibility and you are not pinning them down to a certain geometric design, you are providing performance based recommendations, and helping them benchmark different designs against a project factor you have optimized to meet your project load targets. <div>
<br clear="all"><span style="font-family:arial,sans-serif;border-collapse:collapse"><font color="#999999"><div style="font-size:13px"> </div><div><b style="font-size:13px">Arpan Bakshi</b><b style="font-size:13px"> </b><font size="1">LEED AP BD+C, ESTIDAMA PQP</font></div>
</font></span><br>
<br><br><div class="gmail_quote">On Wed, Oct 24, 2012 at 10:50 AM, Ömer Moltay <span dir="ltr"><<a href="mailto:omoltay@mimtarch.com" target="_blank">omoltay@mimtarch.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Nick, Arpan, Demba,<br>
<br>
Thanks a lot. I have followed the Building Shades approach and the results are impressive. First time I am using this. I created the shades by taking coordinates from CAD drawings in which I had fixed the building origin to a setpoint. Having created a shade for each facade, I then populated them in the INP file and changed their Z values in spreadsheet mode. Attached you will find a screenshot.<br>
<br>
Thank you again!<br>
<br>
Omer Moltay<br>
Mimta<br>
<br>
24.10.2012 03:57 tarihinde, Nick Caton yazdı:<div class="HOEnZb"><div class="h5"><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Omer,<br>
<br>
I'm certain you are not thinking through the building shade approach in a time-efficient fashion. The quantity will almost certainly be less than 5x859 when you consider a single shade can span multiple windows.<br>
<br>
That said, an alternative may be to instead determine an effective shading coefficient for the exterior shading system using something like eQuest(!) to compare a single window of your actual glazing materials & with defined exterior shades against a base case of 1/8" float glass. The resultant SC (which should account for values through the year as solar angle varies) could then be applied to all your windows defining no shades. Check out the following presentation which follows this course in detail using ecotect: <a href="http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCEQFjAA&url=http%3A%2F%2Fisites.harvard.edu%2Ffs%2Fdocs%2Ficb.topic831443.files%2FWK4-Salhia_Shading%2520Coeffficient.pdf&ei=xDmHUIusH4jq8wTAlIDgCg&usg=AFQjCNHp_ef-knFVuaP_x8eV3fXyMDZ3KA&sig2=OJ4FmDXoBXWiNunMI0XBDw&cad=rja" target="_blank">http://www.google.com/url?sa=<u></u>t&rct=j&q=&esrc=s&source=web&<u></u>cd=1&ved=0CCEQFjAA&url=http%<u></u>3A%2F%2Fisites.harvard.edu%<u></u>2Ffs%2Fdocs%2Ficb.topic831443.<u></u>files%2FWK4-Salhia_Shading%<u></u>2520Coeffficient.pdf&ei=<u></u>xDmHUIusH4jq8wTAlIDgCg&usg=<u></u>AFQjCNHp_ef-knFVuaP_<u></u>x8eV3fXyMDZ3KA&sig2=<u></u>OJ4FmDXoBXWiNunMI0XBDw&cad=rja</a><br>
<br>
Then there's always space multipliers =)...<br>
<br>
Best regards,<br>
<br>
~Nick<br>
<br>
<br>
NICK CATON, P.E.<br>
SENIOR ENGINEER<br>
<br>
Smith & Boucher Engineers<br>
25501 west valley parkway, suite 200<br>
olathe, ks 66061<br>
direct <a href="tel:913.344.0036" value="+19133440036" target="_blank">913.344.0036</a><br>
fax <a href="tel:913.345.0617" value="+19133450617" target="_blank">913.345.0617</a><br>
<a href="http://www.smithboucher.com" target="_blank">www.smithboucher.com</a><br>
<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.<u></u>onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@<u></u>lists.onebuilding.org</a>] On Behalf Of Ömer Moltay<br>
Sent: Tuesday, October 23, 2012 5:57 PM<br>
To: Arpan Bakshi<br>
Cc: eQUEST Users List<br>
Subject: Re: [Equest-users] How to Model Series of Louvres on Windows?<br>
<br>
Hi,<br>
<br>
This means creating a building shade for each horizontal louvre, I guess? With 5 louvres on each window and 859 windows, this would mean<br>
4295 building shades. Is this possible in eQuest? Isn't this overkill and wouldn't it considerably slow the simulation run?<br>
<br>
Thanks,<br>
<br>
Omer Moltay<br>
Mimta<br>
<br>
24.10.2012 00:57 tarihinde, Arpan Bakshi yazdı:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Using a geometry creation tool like Autodesk Vasari can ease the pain of creating shades one at a time in Equest. It helps to have some Revit experience as Vasari uses a push-pull method parametrically tied to dimension annotation. Once you create the geometry, run the Vasari energy analysis, disregard the results, and export results to .INP. Now you can extract the geometry under the building shade heading from the Vasari INP and paste into your Equest INP.<br>
<br>
<br>
<br>
Arpan Bakshi, BD+C, PQP<br>
T <a href="tel:%28646%29%20704-2880" value="+16467042880" target="_blank">(646) 704-2880</a><br>
<br>
YR&G<br>
<a href="http://www.yrgxyz.com" target="_blank">www.yrgxyz.com</a><br>
<br>
<br>
...<br>
<br>
On Oct 23, 2012, at 17:28, Demba Ndiaye <<a href="mailto:Demba.Ndiaye@setty.com" target="_blank">Demba.Ndiaye@setty.com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Omer,<br>
<br>
The "building shade" method is definitely the way to go.<br>
<br>
There is no particular difficulty.<br>
<br>
Regards,<br>
<br>
Demba.<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.<u></u>onebuilding.org</a><br>
[mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@<u></u>lists.onebuilding.org</a>] On Behalf Of Ömer<br>
Moltay<br>
Sent: Tuesday, October 23, 2012 3:38 PM<br>
To: Arpan Bakshi; eQUEST Users List<br>
Subject: Re: [Equest-users] How to Model Series of Louvres on Windows?<br>
<br>
Not particularly with its application in this case.<br>
<br>
Omer Moltay<br>
Mimta<br>
<br>
23.10.2012 22:34 tarihinde, Arpan Bakshi yazdı:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Familiar with the "building shade" method?<br>
<br>
<br>
<br>
Arpan Bakshi, BD+C, PQP<br>
T <a href="tel:%28646%29%20704-2880" value="+16467042880" target="_blank">(646) 704-2880</a><br>
<br>
YR&G<br>
<a href="http://www.yrgxyz.com" target="_blank">www.yrgxyz.com</a><br>
<br>
<br>
...<br>
<br>
On Oct 23, 2012, at 14:54, Ömer Moltay <<a href="mailto:omoltay@mimtarch.com" target="_blank">omoltay@mimtarch.com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear All,<br>
<br>
How would you model louvres shown on the graphic attached?<br>
<br>
Thanks,<br>
<br>
Omer Moltay<br>
Mimta<br>
<Louvres.jpg><br>
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