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<p>Dan,</p>
<p> </p>
<p>One thing to also consider is whether or not you need the interior walls in the first place since these are basically resistors (i.e., wall = U-VALUE) or resistor-capacitors (i.e., wall = LAYERED) between two thermal zones. In addition, you need to consider
if the different thermal zones have different interior temperature settings, as only in this case the interior walls begin to play a role in the thermal simulation.
</p>
<p> </p>
<p>In general, EQUEST and other simulation programs tend to use 5 zones in a model: i.e., N, E, S, W and core zone. However, a review of the literature seems to indicate that there have been very few definitive studies that have answered the question: Why 5
zones versus 2 (i.e., core and perimeter), or 9 zones versus 5 zones, etc.? or What about opaque walls versus windows versus slab on grade? or What about thermostat settings? This last question is critical to understanding how newer systems are impacting energy
efficiency as we move towards thermostats with motion sensors and individual zone systems (i.e., VRF or mini-splits).
</p>
<p> </p>
<p>Furthermore, to make things worse, some vendors are moving towards "robo-zoning", without providing a basis for the "robo". So, long-story-short, unless you are doing something fancy try one zone, then two, then five, then nine. Unfortunately, to do this
you'll have to dump out the BDL from your first run with the Wizard, then edit and rerun with the DOE2.2 engine, since EQUEST has built-in assumptions about zoning that are adding unnecessary zones to the model (i.e., if the thermostat settings are the same).</p>
<p> </p>
<p>Jeff </p>
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<div><font color="#0000ff" size="2" face="Tahoma">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.............................http://esl.tamu.edu<br>
8=/ 8=) :=) 8=) ;=) 8=) 8=() 8=) :=) 8=) 8=! 8=) 8=? 8=) </font><font color="#0000ff" size="2" face="Tahoma">8=0<br>
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<div id="divRpF633173" style="DIRECTION: ltr"><font color="#000000" size="2" face="Tahoma"><b>From:</b> Equest-users [equest-users-bounces@lists.onebuilding.org] on behalf of Nicholas Caton [ncaton@catonenergy.com]<br>
<b>Sent:</b> Saturday, July 18, 2015 12:09 AM<br>
<b>To:</b> David Griffin II; bfountain@greensim.com; Daniel Caporizzo; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Interior Walls show up as Exterior Walls<br>
</font><br>
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<p class="MsoNormal"><span style="COLOR: #002060">The “plan north” trick looks to get the job done after a quick check in this case. I can think of a few more tips to add to the pot so long as we’re contributing:</span></p>
<p class="MsoListParagraph" style="TEXT-INDENT: -0.25in"><span style="COLOR: #002060"><span>1.<span style="FONT: 7pt "Times New Roman"">
</span></span></span><span style="COLOR: #002060">You can right click the bold perimeter lines in plan view of wizard screen 2 for each shell, manually telling eQuest to make individual walls adiabatic (an interior type you can later assign thermal ties with
if desired)</span></p>
<p class="MsoListParagraph" style="TEXT-INDENT: -0.25in"><span style="COLOR: #002060"><span>2.<span style="FONT: 7pt "Times New Roman"">
</span></span></span><span style="COLOR: #002060">When you have two shells meet with walls of varying perimeter length, I have found it a good practice to generate “extra” vertices in the shell with the longer wall, so that the shell with the shorter wall can
lock its vertices directly to the first. </span></p>
<p class="MsoNormal"><span style="COLOR: #002060"></span> </p>
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<p class="MsoNormal"><b><span style="FONT-SIZE: 14pt; COLOR: #002060">NICK CATON, P.E.</span></b><span style="FONT-FAMILY: "Verdana",sans-serif; COLOR: #1f497d"><br>
</span><b><span style="COLOR: #561782">Owner</span></b></p>
<p class="MsoNormal"><b><span style="COLOR: #561782"></span></b> </p>
<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt; COLOR: #561782">Caton Energy Consulting</span></b><span style="FONT-SIZE: 10pt; COLOR: black"><br>
</span><span style="FONT-SIZE: 10pt; COLOR: #1f497d"> 603 N Ferrel</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: #1f497d"> Olathe, KS 66061</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: #1f497d"> office: 785.410.3317</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: #561782"><a href="https://teesmail.tees.tamus.edu/owa/UrlBlockedError.aspx" target="_blank"><span style="COLOR: #561782">www.catonenergy.com</span></a></span><span style="COLOR: #002060"></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>David Griffin II<br>
<b>Sent:</b> Wednesday, July 15, 2015 4:39 PM<br>
<b>To:</b> <a href="mailto:bfountain@greensim.com" target="_blank">bfountain@greensim.com</a>; 'Daniel Caporizzo';
<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Interior Walls show up as Exterior Walls</p>
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<p class="MsoNormal"> </p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="COLOR: #1f497d">Dan,</span></a><span style="COLOR: #1f497d"></span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span style="COLOR: #1f497d">If Brian’s solution does not work, you can try an approach I’ve used in previous versions of eQUEST.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span style="COLOR: #1f497d">In the Wizard under the Custom Zoning Pattern, offset the interiors walls that are showing up as exterior by ~1’-0” from the edge of the footprint.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span style="COLOR: #1f497d">This should make the walls interior rather than exterior, and since DOE2 uses area of geometry to calculate things, it should not affect the accuracy of your model.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span style="COLOR: #1f497d">Let me know how it goes.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span style="COLOR: #1f497d">Sincerely,</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d"></span> </p>
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<p class="MsoNormal"><b>From:</b> <a href="mailto:bfountain@greensim.com" target="_blank">
bfountain@greensim.com</a> [<a href="mailto:bfountain@greensim.com" target="_blank">mailto:bfountain@greensim.com</a>]
<br>
<b>Sent:</b> Wednesday, July 15, 2015 11:21 AM<br>
<b>To:</b> 'Daniel Caporizzo'; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">
equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Interior Walls show up as Exterior Walls</p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d">I recommend leaving “Plan North” on DD wizard screen 2 as North – then setting the azimuth as required in detailed edit mode. With Plan North as North, I find eQUEST does a good job of creating
appropriate exterior and interior walls for adjacent shells. However when the building is rotated in the wizard, what you describe (all exterior walls) has happened to me as well.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d">I hope this resolves your issue.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span lang="EN-CA"><img id="Picture_x0020_1" border="0" src="cid:image001.png@01D0C0ED.1F83FC30" width="770" height="574"><span style="COLOR: #1f497d"></span></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d"></span> </p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d">Brian</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="COLOR: #1f497d"></span> </p>
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<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif">From:</span></b><span style="FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif"> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Daniel Caporizzo<br>
<b>Sent:</b> July-15-15 1:09 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Interior Walls show up as Exterior Walls</span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-CA"></span> </p>
<p class="MsoNormal">Hi everyone,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am working on an energy model for an office building (see attached pd2 and inp files), in eQuest v3.65.
</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">My problem is that when I create the shells and zones, all of the walls touching adjacent shells/zones show up as exterior walls instead of interior walls.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">This is a particular problem on all of the “1F” shells in the model, which should have interior walls when the shells connect. I am using the default zones right now while the architect works on updating the room layout. I don’t know if
it is just a setting I have unchecked but in the past this has only been an isolated problem (i.e. couple of walls for the whole job) rather than the entire project. I am still in the Wizard Data Edit mode phase of the model, and even though I can fix this
manually in Detailed Edit Mode (by creating interior walls in the same location) I’d like to fix it in the wizard…which will definitely save me time in the long run.
</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Has anyone had this problem before?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks,</p>
<p class="MsoNormal">Dan</p>
<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt; COLOR: black"></span></b> </p>
<p class="MsoNormal"> </p>
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