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<p class=MsoNormal><span style='color:#0025C4'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'>Pallavi,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'>Go to <a
href="http://www.chhayaonline.org">www.chhayaonline.org</a> and try out the
beta version. Attached is the PDF version of the technical paper we wrote
for the ASES conference earlier this year. The program is still in development –
especially the weather import tools, but this might be exactly what you are
looking for. If you need, I can send you the weather file you need.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'>If you look at section 4.0 (pg
3) of the paper, it describes how the effective shading coefficient is calculated
based on the profile angle and the window overhang. The program allows you to
play around with the overhangs and updates the shading coefficient matrix real
time. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0025C4'>Feel free to call me if you have
any questions. <o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Pallavi
Mantha<br>
<b>Sent:</b> Thursday, December 18, 2008 12:05 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Window Heat gain - Shading Coefficient<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>All,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I need to calculate shading coefficient of a window glass
with and without the effect of a shading fin. I could not find any software
that does this for me so this is how I’m trying to calculate it:
Calculate window heat gain for both cases from Eplus and then perform a manual
calculation to get shading coefficient of the window. Since the shading
coefficient is the ratio of solar heat gain admitted through the glass as
compared to the solar heat gain admitted through 1/8" clear glass
(1/8" clear glass = 1.0 Shading Coefficient) under similar
conditions… so If I simulate the base case as 1/8” clear
glass… and then calculate the ratio.. I should get my result… (?)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Did anyone of you face this kind of a scenario before? Can
you please shed some light on this?<o:p></o:p></p>
<p class=MsoNormal>Would you know of any tools that does this kind of
simulation?<o:p></o:p></p>
<p class=MsoNormal>Any input is highly appreciated!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Pallavi<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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