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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Vikram and Karen’s response are right on – I can fill in a few gaps as well:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Elevation of a building <u>can</u> have an effect on eQuest’s infiltration calculations, depending on the method you choose to use for defining infiltration. Much to read on the topic in the help files if you’re interested, but FYI the default coming out of the wizards is not elevation-sensitive (AIR-CHANGE </span><span style='font-size:11.0pt;font-family:Wingdings;color:#1F497D'>à</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> INF-FLOW/AREA).<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>To help clarify the first example: Moving spaces away from each other does not break the “adjacency ties” that existed (or not) prior. I would not expect any changes of the first example, because you have the flexibility to move the spaces all over the place. If you intend to separate the floors, you should simultaneously re-assign the “next to” property or or removing the interior surfaces that joined them to begin with. Note coming out of the wizards, you may not actually find there to be a surface defining that connection, depending on how you defined the shell(s).<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I can confirm to my understanding that eQuest does not recognize “holes” in any sense. eQuest <u>does</u> recognize the relative XYZ coordinates of exterior surfaces and of building shades when determining solar loads incident on exterior walls, roofs, and windows. You should be able to confirm this by moving the wall in the 2<sup>nd</sup> example right next to another (and keeping the ‘self-shading’ property on for all exterior surfaces). <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>~Nick<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img width=119 height=37 id="Picture_x0020_1" src="cid:image001.jpg@01CCDF44.E40477D0" alt="cid:489575314@22072009-0ABB"></span><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Stylus BT","sans-serif";color:#2D4D5E'>NICK CATON, P.E.</span></b><b><span style='font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900'>SENIOR ENGINEER<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>Smith & Boucher Engineers</span><span style='font-size:7.5pt;font-family:"Times New Roman","serif";color:#CC9900'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>25501 west valley parkway, suite 200<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>olathe, ks 66061<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>direct 913.344.0036<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>fax 913.345.0617<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="www.smithboucher.com" title="blocked::www.smithboucher.com"><span style='font-size:10.0pt;color:blue'>www.smithboucher.com</span></a></span><u><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue'> </span></u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Karen Walkerman<br><b>Sent:</b> Monday, January 30, 2012 8:24 AM<br><b>To:</b> Jiao, Joey<br><b>Cc:</b> Equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Some discuss about the Calculation Method of thesoftware<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi Joey,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Your observations are based on the fact that the underlying simulation engine for eQuest (DOE2) has little actual understanding of 3 dimensional space. I think it's easiest to start with your second example when you move the wall out of the space. The program itself doesn't understand that the original space bounded by the floor, ceiling and 4 walls consisted of a volume. Therefore, when the wall is moved it doesn't understand that there is a hole. The wall is still in the program, it is still facing the same cardinal direction, it is still assigned by the same zone, and in both cases, it is not shaded by any other objects, so the program will model model conduction through the wall and solar gain through the windows. The program does not understand the hole.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>When you delete the wall, the program no longer models conduction through the wall or solar gain through the windows. Basically, there is no longer a boundary there, although it's easier to think of it as an adiabatic boundary with no mass. This effect can be advantageous because if you need to create custom geometry in detailed mode and need to change the polygons, it can be difficult to get all walls to match exactly. Having a small gap or small hole is acceptable and doesn't lead the program to model natural ventilation. If you want to model natural ventilation, I believe you do this in detail mode under the "Internal Loads" tab.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Your first example is the only one that should show a tiny amount of difference in the result - this is because I believe that the elevation of the building is accounted for in the calculation. However, the internal ceiling of the first floor is still internal and is still specified as being adjacent to the internal floor of the second floor.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Regarding space adjacency - when you enter spaces into the wizard, it does a decent job of figuring out which spaces are adjacent. If it knows a space is adjacent to another space, it will set that wall to interior. If the space is not adjacent, it will set the wall to exterior. Be careful and double check in detailed mode that everything you expect to be interior and exterior actually came through that way. When you make a change in detailed mode, you need to make sure everything agrees.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>--<o:p></o:p></p></div><div><p class=MsoNormal>Karen<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Sami, Vikram<br><b>Sent:</b> Monday, January 30, 2012 8:19 AM<br><b>To:</b> Jiao, Joey; Equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Some discuss about the Calculation Method ofthe software<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Absolutely from the 1<sup>st</sup> situation, we can see that the software can’t judge if the two space are adjacent from the coordinate, is that right? Further , how should the software judge if two spaces adjacent? <span style='color:red'>The software judges adjacent spaces by the surface that separates them. In interior spaces you have to specify an adjacent space that it shares the space with. </span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If there is a hole on the wall, I don't think the software should deal with it as natural ventilation, so , how should the software to deal with it<span style='color:red'>?</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]><span style='color:red'> </span>If some wall been deleted as 3<sup>rd</sup> situation, the software still can be run, so I think there should be some default boundary conditions, and which should be the default boundary condition?<o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph><span style='color:red'>The software doesn’t (as far as I know) calculate holes. It will calculate heat transfer through a surface. In terms of boundary – it calculates heat transfer to a space from exterior conditions through an exterior wall, and from adjacent spaces through interior walls. The absence of a surface (I think) makes that area adiabatic – no heat transfer, mass, or any exchanges. It also means there is no daylight coming into the space from that wall. As far as natural ventilation goes – I think the way to model that is as an infiltration with a schedule. <o:p></o:p></span></p><p class=MsoListParagraph><span style='color:red'><o:p> </o:p></span></p><p class=MsoListParagraph><span style='color:red'>Hope this helps<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#DCAA2C'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Vikram Sami</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>, LEED AP BD+C<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Sustainable Design Analyst<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>1315 Peachtree St. NE, Atlanta, GA 30309<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>t: 404-443-7462 f: </span><span lang=ES style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>404.892.5823 </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> e: <a href="mailto:vikram.sami@perkinswill.com">vikram.sami@perkinswill.com</a> </span><span style='color:#1F497D'><a href="http://www.perkinswill.com/"><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray;text-decoration:none'>www.perkinswill.com</span></a></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:3.0pt;text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Perkins+Will.</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425'>Ideas + buildings that honor the broader goals of society</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:green'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><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"'> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Jiao, Joey<br><b>Sent:</b> Sunday, January 29, 2012 10:04 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] Some discuss about the Calculation Method of the software<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal>Hi all:<o:p></o:p></p><p class=MsoNormal>Below are some situations always puzzle me:<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo3'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If you modify the Floor’s Z-axis coordinate like this , you will find the 2 floors has been separated, but the calculation result didn’t show any different.<o:p></o:p></p><p class=MsoNormal><img border=0 width=365 height=281 id="_x56fe__x7247__x0020_1" src="cid:image002.jpg@01CCDF46.89876B80" alt="cid:image001.jpg@01CCDF2F.DB234340"> <img border=0 width=393 height=281 id="_x56fe__x7247__x0020_4" src="cid:image003.jpg@01CCDF46.89876B80" alt="cid:image002.jpg@01CCDF2F.DB234340"> <img border=0 width=339 height=281 id="_x56fe__x7247__x0020_5" src="cid:image004.jpg@01CCDF46.89876B80" alt="cid:image003.jpg@01CCDF2F.DB234340"><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo3'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>As above, you can also move some wall like this, there is still no different.<o:p></o:p></p><p class=MsoNormal><img border=0 width=340 height=236 id="_x56fe__x7247__x0020_8" src="cid:image005.jpg@01CCDF46.89876B80" alt="cid:image004.jpg@01CCDF2F.DB234340"> <img border=0 width=364 height=235 id="_x56fe__x7247__x0020_7" src="cid:image006.jpg@01CCDF46.89876B80" alt="cid:image005.jpg@01CCDF2F.DB234340"> <img border=0 width=307 height=236 id="_x56fe__x7247__x0020_6" src="cid:image007.jpg@01CCDF46.89876B80" alt="cid:image006.jpg@01CCDF2F.DB234340"><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo3'><![if !supportLists]><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>But , if you directly delete this wall, the result show different.<o:p></o:p></p><p class=MsoNormal><img border=0 width=340 height=236 id="_x56fe__x7247__x0020_2" src="cid:image008.jpg@01CCDF46.89876B80" alt="cid:image007.jpg@01CCDF2F.DB234340"> <img border=0 width=302 height=231 id="_x56fe__x7247__x0020_10" src="cid:image009.jpg@01CCDF46.89876B80" alt="cid:image008.jpg@01CCDF2F.DB234340"><o:p></o:p></p><p class=MsoNormal><img border=0 width=339 height=290 id="_x56fe__x7247__x0020_9" src="cid:image010.jpg@01CCDF46.89876B80" alt="cid:image009.jpg@01CCDF2F.DB234340"> <img border=0 width=373 height=295 id="_x56fe__x7247__x0020_12" src="cid:image011.jpg@01CCDF46.89876B80" alt="cid:image010.jpg@01CCDF2F.DB234340"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The questions are :<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l3 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Absolutely from the 1<sup>st</sup> situation, we can see that the software can’t judge if the two space are adjacent from the coordinate, is that right? Further , how should the software judge if two spaces adjacent?<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l3 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If there is a hole on the wall, I don't think the software should deal with it as natural ventilation, so , how should the software to deal with it?<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l3 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If some wall been deleted as 3<sup>rd</sup> situation, the software still can be run, so I think there should be some default boundary conditions, and which should be the default boundary condition?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have used this software half of one year, but I can’t sure if my calculation result is right, I think I need a higher level to understand this software.<o:p></o:p></p><p class=MsoNormal>Any suggestions would be appreciated.<o:p></o:p></p><p class=MsoNormal>I have learn a lot from you guys ,Thank you.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Joey<o:p></o:p></p><p class=MsoNormal><b><span style='color:#1F497D'>---------------------------------------------------------------------------<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='color:#1F497D'>Joey Jiao<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='color:#1F497D'>Graduate Engineer<br>Shanghai WSP Consulting Ltd. (Shenzhen Branch)</span></b><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Room 406, Wan Tong Da Sha, 3002 Sun Gang Road East, Luo Hu, Shenzhen, 518023, PRC <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Tel: +86 755 25860686 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Fax: +86 755 25860680 <br>Website: </span><a href="www.wspgroup.hk"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.wspgroup.hk</span></a><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><br></span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#666666'>We are WSP. 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