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Jeff S. Haberl, Ph.D., P.E., FASHRAE, FIBPSA
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<div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">Department of Architecture</span>
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<div>Texas A&M University</div>
<div>College Station, Texas 77845-3581</div>
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<div>Office: 979-845-6507, Lab: 979-845-6065</div>
<div>Fax: 970-862-2457, <a href="mailto:jhaberl@tamu.edu">jhaberl@tamu.edu</a>, <a href="http://www.esl.tamu.edu">www.esl.tamu.edu</a></div>
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On Dec 26, 2013, at 5:36 PM, "Jeff Haberl" <<a href="mailto:jhaberl@tamu.edu">jhaberl@tamu.edu</a>> wrote:<br>
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<div>Sorry, hit the send button too soon....</div>
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<div>Shades on well-insulated opaque exterior walls have only a modest impact on overall annual energy use. So, your modeling effort should be proportioned accordingly. If the shades are shading windows then the effect is worth the effort. However, don't forget
DOE-2 uses the split-flux method, which is a good algorithm, but has its limits. </div>
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<div>See the MS thesis by Sikjoon Oh on our web site for details. </div>
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<div>Jeff<br>
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Jeff S. Haberl, Ph.D., P.E., FASHRAE, FIBPSA
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<div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">Department of Architecture</span>
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<div>Texas A&M University</div>
<div>College Station, Texas 77845-3581</div>
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<div>Office: 979-845-6507, Lab: 979-845-6065</div>
<div>Fax: 970-862-2457, <a href="mailto:jhaberl@tamu.edu">jhaberl@tamu.edu</a>, <a href="http://www.esl.tamu.edu">www.esl.tamu.edu</a></div>
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On Dec 26, 2013, at 5:24 PM, "Jeff Haberl" <<a href="mailto:jhaberl@tamu.edu">jhaberl@tamu.edu</a>> wrote:<br>
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<div>Omar. </div>
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<div>Shades on well-insulated <br>
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Jeff S. Haberl, Ph.D., P.E., FASHRAE, FIBPSA
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<div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">Department of Architecture</span>
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<div>Texas A&M University</div>
<div>College Station, Texas 77845-3581</div>
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<div>Office: 979-845-6507, Lab: 979-845-6065</div>
<div>Fax: 970-862-2457, <a href="mailto:jhaberl@tamu.edu">jhaberl@tamu.edu</a>, <a href="http://www.esl.tamu.edu">www.esl.tamu.edu</a></div>
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On Dec 25, 2013, at 2:56 AM, "Omar Osama" <<a href="mailto:o_osama@live.com">o_osama@live.com</a>> wrote:<br>
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<div dir="ltr"><font face="Arial" size="2" style="font-size:10pt;" color="#000000">Dear all,</font>
<div><font face="Arial" size="2" style="font-size:10pt;" color="#000000"> I need to know the best way to model aluminum louvers that is placed on an exterior brick wall on a southern elevation. Should I create exterior walls that resembles the louvers
for each zone,, or assume a very low U-value for this wall, or there is an appropriate way that the software allow for this case?</font><br>
Any help would be highly appreciable,</div>
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<div>Regards,<br>
<blockquote class="ecxwebkit-indent-blockquote" style="border:none;padding:0px;">
<b style="font-family:Tahoma;font-size:12pt;"><font class="ecxApple-style-span" size="2">Omar ElRawy</font></b></blockquote>
<blockquote style="border:none;padding:0px;"><font face="Tahoma"><span class="ecxApple-style-span" style="background-color:rgb(255, 255, 255);"><font class="ecxApple-style-span" size="2">Project Engineer,<br>
</font></span><span style="font-size:10pt;">EA Sustainable Building Consultants<br>
</span><font size="2"><span class="ecxApple-style-span" style="background-color:rgb(255, 255, 255);"><font class="ecxApple-style-span"><a class="ecxparsedLink" href="http://www.ea-buildingconsultants.com/" target="_blank">www.ea-buildingconsultants.com</a></font></span></font></font></blockquote>
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