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<p class="MsoNormal"><span style="color:#1F497D">Hello Jason [and all];<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Maybe I am overlooking an important detail here, but I think Jason’s ‘is it so simple’ question can be answered ‘yes’ with some minor clarifications.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Jeff detailed out some of the complications of this situation very well, but I am not sure we need to go that far with it. If this for a code compliance model or LEED performance model, the simplified approach
is best. If we are truly attempting to understand this courtyard and the building interaction, or cross ventilation, and such, the Jeff is spot on.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">The way I would/have approach a situation such is two part. In Wizard Mode, draw the shell[s] all the way around the building. For zoning leave this area empty/don’t make a zone for it. If this is truly surrounded
by a single zone, split this zone into two zones through this hole, some of each zone bordering this ‘hole’. This is necessary to actually create the ‘hole’. Then, in Detailed edit mode, you add/create your exterior walls/façade/windows/etc. in the ‘hole’
area. If you had to split a zone into two, take the interior wall that splits these two zone and make it/them an ‘air wall’.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">I have to use this approach on both smaller and larger ‘holes’ in buildings with no major issues. Just the time it takes to create the other exterior walls, which adds up on big models.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’d be interested to hear other’s thoughts or approaches.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:black;text-transform:uppercase">DARIC R. ADAIR</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D">
</span><span style="font-size:8.0pt;font-family:"Arial Black",sans-serif;color:black;text-transform:uppercase"> PE, C.E.M.</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D">
<br>
</span><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#566C11">Henderson Engineers, Inc. | </span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#566C11">Mechanical Engineer, Energy Analyst</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D">
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</span><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;font-variant:small-caps;color:black">dir</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"> 913 742 5530
<b><span style="font-variant:small-caps">tel</span></b> 913 742 5000 <b><span style="font-variant:small-caps">fax</span></b> 913 742 5001
<b><span style="font-variant:small-caps">tx id</span></b> #F-001236 <b><span style="font-variant:small-caps">email</span></b> daric.adair@hei-eng.com</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D">
<a href="http://www.hei-eng.com/"><b><span style="font-size:8.0pt;color:#566C11">www.hei-eng.com</span></b></a>
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</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:black">Licensed in KS.</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Jeff Haberl [mailto:jhaberl@tamu.edu] <br>
<b>Sent:</b> Monday, July 20, 2015 5:20 PM<br>
<b>To:</b> Ng, Jason; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Interior courtyards<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hello Jason,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Great building to try to simulate.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">However, real courtyard buildings are very difficult to simulate accurately because, depending on climate, they have the potential to expose the building to (2) or more “weather files”, one for the exterior surfaces
of the building and one for the “courtyard”. In addition, if there are any openings from the exterior through the building into the courtyard, then there can be significant cross ventilation, which further complicates things.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Finally, if the building is in an extreme climate (for example hot and dry), and if there is any vegetation in the courtyard or fountain, then you may also have significant evaporative cooling in the courtyard
(i.e., wetting of the porous floor and walls) and in such cases you’ll need an industrial strength CFD program coupled with the building thermal simulation, that is capable of tracking air flow and moisture in and around the building and its courtyard…not
for the faint of heart.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If there is no interaction between the building and the courtyard, if you don’t have evaporative cooling and if you have some measured data, then one could develop an empirical or “inverse simulation” of the
courtyard, split the building like a donut and “simulate” the weather condition inside the courtyard for the inner portion of the building and the normal weather file outside the building with the outside portions and then knit the two simulations together
with adiabatic, mass-type thermal walls after iterating to converge the solutions.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">One additional difficult issue is that many of the traditional courtyard buildings have amounts of thermal mass that go way beyond the capabilities of today’s whole-building thermal simulation programs, which
can require a rather long period to converge (i.e., weeks or months).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Finally, although there has been some previous work in this area, most creditable efforts attempt to resolve one of more of the above issues.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Jeff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:blue">8=! 8=) :=) 8=) ;=) 8=) 8=( 8=) 8=() 8=) 8=| 8=) :=') 8=) 8=?<br>
Jeff S. Haberl, Ph.D.,P.E.inactive,FASHRAE,FIBPSA,......<a href="mailto:........jhaberl@tamu.edu">jhaberl@tamu.edu</a><br>
Professor........................................................................Office Ph: 979-845-6507<br>
Department of Architecture............................................Lab Ph:979-845-6065<br>
Energy Systems Laboratory...........................................FAX: 979-862-2457<br>
Texas A&M University...................................................77843-3581<br>
College Station, Texas, USA, 77843..............................URL:www.esl.tamu.edu<br>
8=/ 8=) :=) 8=) ;=) 8=) 8=() 8=) :=) 8=) 8=! 8=) 8=? 8=) 8=0<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Ng, Jason<br>
<b>Sent:</b> Monday, July 20, 2015 4:01 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Interior courtyards<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:black">Of course, I forgot to attach my image……<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><img border="0" width="85" height="85" id="Picture_x0020_1" src="cid:image001.jpg@01D0C3C7.9449B0F0" alt="cid:image001.jpg@01D0C3C7.9449B0F0"></span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black">
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<p class="MsoNormal"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#3F3F3F">Jason</span></b><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:black"> </span></b><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#3F3F3F">Ng</span></b><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#7D7D7D">_ing.
jr. M.Sc.A., LEED green associate</span></b><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#A5A5A5"><a href="mailto:jng@bpa.ca" title="Envoyer un courriel/Send email"><span lang="EN-CA" style="color:#A5A5A5">jng@bpa.ca</span></a></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#A5A5A5">
| </span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#A5A5A5"><a href="http://www.bpa.ca" target="_blank" title="www.bpa.ca"><span lang="EN-CA" style="color:#A5A5A5">www.bpa.ca</span></a></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#A5A5A5"> | t:
5143833747x2813<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FR-CA" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#BFBFBF">Les informations contenues dans le courriel que vous venez de recevoir, y compris les pièces jointes, sont destinées à l’usage exclusif de la (ou des)
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<p style="visibility:hidden"><span style="font-size:6.0pt;display:none">AT:2|<o:p></o:p></span></p>
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