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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">One more thought on this topic.
<o:p></o:p></span></p>
<p class="MsoNormal"><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">The EE4 modeling program allows you to account for the effects of thermal bridging in envelope constructions. One defines the insulation layer along with the
material and percentage of framing. The program then calculates the weighted average conductance, density, and specific heat of the combined layer and defines it as a MATERIAL in the DOE2 input file. It further defines the layers of the construction including
this newly created material. I use this functionality to create the material and then copy the definition into the eQuest file I am working on. Below is a table of suggested framing percentages for different constructions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><img width="676" height="319" id="_x0000_i1036" src="cid:image006.png@01D15E70.EB820590"><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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<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="108" height="43" id="_x0000_i1035" src="cid:image001.png@01D15E6F.FD50B240" alt="cid:image003.png@01D09C46.E75BA0D0"></span><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1C467A"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1C467A">Christopher Jones,</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">
</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">P.Eng.<i>
<br>
</i></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Senior Engineer<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">WSP Canada Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">2300 Yonge Street, Suite 2300<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Toronto, ON M4P 1E4</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#595959"><br>
</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">T +1 416-644-4226<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">F +1 416-487-9766<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">C +1 416-697-0056<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="http://www.wspgroup.com/">www.wspgroup.com</a>
</span><i><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#565656"><o:p></o:p></span></i></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><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 [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Bishop, Bill<br>
<b>Sent:</b> Wednesday, February 03, 2016 9:43 AM<br>
<b>To:</b> Jim Dirkes; Joe Huang<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Joe,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the link to that TC4.7 report at ORNL! It looks like it has a lot of good information. I’m guessing the sample DOE2.1 code could be used as the basis
for wall and roof assembly simulation in software compatible with DOE-2 envelope simulation methodology.<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My main question is how do we use this data in the simplest , broadest and most consistent way?
</span></i><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do the research findings imply using different assembly U-factors than what is published in 90.1, Appendix A? Jim mentions that the tables already account for thermal
bridging, but the Report was published in 2001, and I see no obvious differences between the Appendix A table values in 90.1-1999 and subsequent versions. The Report also looked at thermal capacitance as the second property needed for describing equivalent
1-D wall assemblies, but Appendix A only lists HC (Heat Capacity) values for mass walls and concrete layers.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I haven’t reviewed the whole report to see if it provides insight on modeling common thermal bridges in contemporary assemblies – Z-girts, clips, angle irons
etc. The tech transfer and dissemination that you mention should include incorporation into the standard requirements for modeling assemblies in 90.1, so that we are all still using similar baselines and modeling like-for-like.<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">~Bill<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"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP
</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:#006600">|</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black"> Pathfinder Engineers & Architects LLP<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="line-height:105%"><b><span style="font-size:9.0pt;line-height:105%;font-family:"Arial","sans-serif";color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="mso-line-height-alt:9.8pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">bbishop@pathfinder-ea.com</span></a></span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">
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<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:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Bldg-sim [<a href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Jim Dirkes<br>
<b>Sent:</b> Wednesday, February 03, 2016 9:02 AM<br>
<b>To:</b> Joe Huang <<a href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>><br>
<b>Cc:</b> <a href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Tahoma","sans-serif";color:#B45F06">Joe,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Tahoma","sans-serif";color:#B45F06">If people are concerned about modeling for LEED baselines, there's no need to understand bridging's impact because the 90.1 tables already account for the bridging.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Tahoma","sans-serif";color:#B45F06">If, however, we want to prepare models that are true to the construction reality, we need to have an understanding of how heat transfers in real constructions.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Tahoma","sans-serif";color:#B45F06">Up until a few short years ago, that understanding had completely escaped me. We'll just say that for 35 of 40 years of continuous involvement in commercial
building heating and cooling systems, I didn't know that my U-values calculations were routinely off by 15-20%.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Tahoma","sans-serif";color:#B45F06">I bet I'm not alone!<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, Feb 3, 2016 at 8:46 AM, Joe Huang <<a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
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<p class="MsoNormal" style="margin-bottom:12.0pt">A final comment on the original question of modeling thermal bridges in e-QUEST (or any other whole-building energy simulation program). ASHRAE TC 4.7 had sponsored work on this topic 14 years ago (2000-2001),
"MODELING TWO- AND THREE- DIMENSIONAL HEAT TRANSFER THROUGH COMPOSITE WALL AND ROOF ASSEMBLIES IN TRANSIENT ENERGY SIMULATION PROGRAMS (1145-TRP)". The work was done by Enermodal in association with Oak Ridge National Laboratory and the Polish Academy of
Sciences. The solution was pretty much what I had mentioned previously, i.e., use a 2-D conduction program (HEATING-7) to calculate response factors, although the project went one step further to derive a fictitious 3-layer 1-D wall section with the same
dynamic thermal properties. For more information, please see the full report available from ORNL at<span style="color:#1F497D">
<a href="http://web.ornl.gov/sci/roofs+walls/research/detailed_papers/whole_bldg/" target="_blank">
http://web.ornl.gov/sci/roofs+walls/research/detailed_papers/whole_bldg/</a> .<br>
<br>
Although the project was successful technically, it seemed to have been ignored by the simulation community, and even in many ways by TC 4.7 itself! To me,the lesson is that no matter how good is the widget, there always has to be a tech transfer and dissemination
effort lest the widget just sits on the shelf. As a reaction to this thread, I am currently bringing up the subject within TC4.7 whether we need to do a small follow-on project to do a guideline on modeling 2-D/3-D heat transfer along with a computer tool
that makes it no more difficult (well... maybe a little more) to do than standard 1-D heat transfer.<br>
<br>
If there's anyone on this bulletin board who thinks such a project would be useful, please let me know as I make my case to TC 4.7.<br>
<br>
Joe<br>
(currently chair of TC 4.7)<br>
<br>
</span><o:p></o:p></p>
<pre>Joe Huang<o:p></o:p></pre>
<pre>White Box Technologies, Inc.<o:p></o:p></pre>
<pre>346 Rheem Blvd., Suite 205A<o:p></o:p></pre>
<pre>Moraga CA 94556<o:p></o:p></pre>
<pre><a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre><a href="http://weather.whiteboxtechnologies.com" target="_blank">http://weather.whiteboxtechnologies.com</a> for simulation-ready weather data<o:p></o:p></pre>
<pre>(o) <a href="tel:%28925%29388-0265" target="_blank">(925)388-0265</a><o:p></o:p></pre>
<pre>(c) <a href="tel:%28510%29928-2683" target="_blank">(510)928-2683</a><o:p></o:p></pre>
<pre>"building energy simulations at your fingertips"<o:p></o:p></pre>
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<p class="MsoNormal">On 2/1/2016 6:35 AM, Jones, Christopher wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Christian,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">I agree that it is important for designers to understand the effects of thermal bridging at transitions
in typical construction details. But convincing developers to spend the extra time and construction cost to reduce these thermal bridges is difficult considering the payback periods range from 30-40 years depending on the project and location.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img border="0" width="108" height="43" id="_x0000_i1028" src="cid:image001.png@01D15E6F.FD50B240" alt="cid:image003.png@01D09C46.E75BA0D0"></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1C467A">Christopher Jones,</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">P.Eng.<i>
<br>
</i></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Senior Engineer</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">WSP Canada Inc.</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">2300 Yonge Street, Suite 2300</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Toronto, ON M4P 1E4</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#595959"><br>
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<a href="tel:%2B1%20416-644-4226" target="_blank">+1 416-644-4226</a></span><o:p></o:p></p>
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<a href="tel:%2B1%20416-487-9766" target="_blank">+1 416-487-9766</a></span><o:p></o:p></p>
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<a href="tel:%2B1%20416-697-0056" target="_blank">+1 416-697-0056</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="http://www.wspgroup.com/" target="_blank">www.wspgroup.com</a>
</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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""> Christian Cianfrone [<a href="mailto:CCianfrone@morrisonhershfield.com" target="_blank">mailto:CCianfrone@morrisonhershfield.com</a>]
<br>
<b>Sent:</b> Friday, January 29, 2016 4:52 PM<br>
<b>To:</b> Jones, Christopher; Joe Huang; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">
bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chris, Joe,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Refer to ASHRAE 1365-RP for detailed methodology on the modeling. The same methodology was used
in the BETB Guide. Sensitivity of transient analysis for the thermal modeling was addressed in 1365-RP. In terms of thermal mass impacts on energy modeling, this is dealt with in Appendix C of the report. Analysis was done using EnergyPlus’ Finite Difference
method for conduction.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chris – the point of derating the reference building in the BC Hydro incentive is to encourage design
teams to understand the actual performance of their envelope (and buildings). If you just force people to include all thermal bridging when the codes were clearly developed to ignore most of this thermal bridging, then nobody will ever account for the full
effects of thermal bridging.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">By not being realistic, designers end up adding (and paying) for more insulation with no real added
value. And the relative savings are not the same – The differences in energy at high R-values are not the same differences in energy at low R-values.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Paperwork is quite straightforward too. It requires a few take-offs and looking up U-values/Psi
Values, which an energy modeler is mostly already doing. We’ll be releasing some how-to videos in the near future to help folks along. I’ll post to this group when available.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Cheers,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a name="-1681838342__MailEndCompose"></a><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">Christian Cianfrone,
<a href="http://M.A.Sc" target="_blank">M.A.Sc</a>., P.Eng., LEED</span></b><sup><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">®</span></sup><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D"> AP BD+C</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D">Principal, Building Energy Practice Lead</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="mailto:email@morrisonhershfield.com" target="_blank"><span style="font-size:8.0pt;font-family:"Arial","sans-serif"">ccianfrone@morrisonhershfield.com</span></a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#00355E"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="http://www.morrisonhershfield.com/Pages/default.aspx" target="_blank"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D;text-decoration:none"><img border="0" width="225" height="26" id="_x0000_i1029" src="cid:image005.png@01D15E6F.FD50B240" alt="Description: Description: Description: Description:
Description: logo4email4"></span></a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:3.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:7.0pt;font-family:"Arial","sans-serif";color:#1F497D">Suite 310, 4321 Still Creek Drive | Burnaby, BC V5C 6S7<br>
Dir: <a href="tel:604%20454%202006" target="_blank">604 454 2006</a> | Cell: <a href="tel:604%20376%201315" target="_blank">
604 376 1315</a> | Fax: 604 454 0403</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><u><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:blue"><a href="http://morrisonhershfield.com/sustainability" target="_blank">morrisonhershfield.com/sustainability</a></span></u><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Bldg-sim [<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">mailto:bldg-sim-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Jones, Christopher<br>
<b>Sent:</b> Friday, January 29, 2016 10:15 AM<br>
<b>To:</b> Joe Huang <<a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a>>;
<a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Joe,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">I admit I haven’t read all the appendices. I use mainly appendix B which contains the steady-state
U-values of dozens of constructions. Appendix C may provide some insights as to whether or not dynamic characteristics of the constructions were examined in their energy modeling.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">From this work, BC Hydro has decided that all thermal bridging in buildings are to be accounted for
when performing modeling for BC Hydro incentives. But BC Hydro also now includes blanket factors for de-rating the baseline case energy model to account for typical thermal bridging not accounted for in 90.1. It is a bit baffling to me as one has to go through
a lot of work, fill in a bunch of forms to come up with almost no significant difference in relative results:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">The same web page, just below “Resources” includes this Accounting for Thermal Bridging at Interface
Details along with the spreadsheets:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal" target="_blank">https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img border="0" width="108" height="43" id="_x0000_i1030" src="cid:image001.png@01D15E6F.FD50B240" alt="cid:image003.png@01D09C46.E75BA0D0"></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1C467A">Christopher Jones,</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">P.Eng.<i>
<br>
</i></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Senior Engineer</span><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">WSP Canada Inc.</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">2300 Yonge Street, Suite 2300</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Toronto, ON M4P 1E4</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#595959"><br>
</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">T
<a href="tel:%2B1%20416-644-4226" target="_blank">+1 416-644-4226</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">F
<a href="tel:%2B1%20416-487-9766" target="_blank">+1 416-487-9766</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">C
<a href="tel:%2B1%20416-697-0056" target="_blank">+1 416-697-0056</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="http://www.wspgroup.com/" target="_blank">www.wspgroup.com</a>
</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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""> Joe Huang [<a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">mailto:yjhuang@whiteboxtechnologies.com</a>]
<br>
<b>Sent:</b> Friday, January 29, 2016 11:46 AM<br>
<b>To:</b> Jones, Christopher; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">
bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Christopher,
<br>
<br>
I took a brief scroll through the link that you provided, and yes, there's a lot of information there. I haven't yet found a technical description of the methodology, but I did get to the tables with pretty colored pictures of wall sections and their computed
U-values. I hope there's more information on the dynamic characteristics of these wall sections, i.e., thermal mass, diffusivity, etc., since those would be needed to model them correctly in a simulation program.
<br>
<br>
In terms of comparing the methodologies, as you've suggested, one place to start would be simply comparing the steady-state U-values derived for the same wall constructions. I've done some digging on my end and found an old 1997 User News newsletter with a
brief description of the 2-D response factor work I did with Fred Winkelmann and Vladimir Bazjanac and a table listing the R-values for the 76 steel-frame wall sections modeled. Since the whole newsletter is only 657K, I've attached it with this e-mail.
The newsletter is interesting in other ways, as well, including the announcement of the 5th IBPSA conference to be held in the Czech Republic :-) .<br>
<br>
Joe<o:p></o:p></p>
<pre>Joe Huang <o:p></o:p></pre>
<pre>White Box Technologies, Inc.<o:p></o:p></pre>
<pre>346 Rheem Blvd., Suite 205A<o:p></o:p></pre>
<pre>Moraga CA 94556<o:p></o:p></pre>
<pre><a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre><a href="http://weather.whiteboxtechnologies.com" target="_blank">http://weather.whiteboxtechnologies.com</a> for simulation-ready weather data<o:p></o:p></pre>
<pre><a href="http://www.whiteboxtechnologies.com" target="_blank">http://www.whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre>(o) <a href="tel:%28925%29388-0265" target="_blank">(925)388-0265</a><o:p></o:p></pre>
<pre>(c) <a href="tel:%28510%29928-2683" target="_blank">(510)928-2683</a><o:p></o:p></pre>
<pre>"building energy simulations at your fingertips"<o:p></o:p></pre>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On 1/29/2016 5:18 AM, Jones, Christopher wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Joe,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">It would be very interesting to compare the methodologies in your paper with the results of the Morrison
Herschfield research. BC Hydro published that detailed research. </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="https://www.bchydro.com/powersmart/business/programs/new-construction.html?WT.mc_id=rd_thermalguide#thermal" target="_blank">https://www.bchydro.com/powersmart/business/programs/new-construction.html?WT.mc_id=rd_thermalguide#thermal</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img border="0" width="108" height="43" id="_x0000_i1031" src="cid:image001.png@01D15E6F.FD50B240" alt="cid:image003.png@01D09C46.E75BA0D0"></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1C467A">Christopher Jones,</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">P.Eng.<i>
<br>
</i></span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Senior Engineer</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">2300 Yonge Street, Suite 2300</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Toronto, ON M4P 1E4</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#595959"><br>
</span><span lang="EN-CA" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">T
<a href="tel:%2B1%20416-644-4226" target="_blank">+1 416-644-4226</a></span><o:p></o:p></p>
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</span><o:p></o:p></p>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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 [<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">mailto:bldg-sim-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Joe Huang<br>
<b>Sent:</b> Friday, January 29, 2016 5:44 AM<br>
<b>To:</b> <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2 (minor correction on dates).</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">The work I did for the CEC was done in 1996 (as indicated in the report title), not 2000-2002, which was a follow-on effort to do 2-D foundation heat flows.<br>
<br>
Joe<o:p></o:p></p>
<pre>Joe Huang <o:p></o:p></pre>
<pre>White Box Technologies, Inc.<o:p></o:p></pre>
<pre>346 Rheem Blvd., Suite 205A<o:p></o:p></pre>
<pre>Moraga CA 94556<o:p></o:p></pre>
<pre><a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre><a href="http://weather.whiteboxtechnologies.com" target="_blank">http://weather.whiteboxtechnologies.com</a> for simulation-ready weather data<o:p></o:p></pre>
<pre><a href="http://www.whiteboxtechnologies.com" target="_blank">http://www.whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre>(o) <a href="tel:%28925%29388-0265" target="_blank">(925)388-0265</a><o:p></o:p></pre>
<pre>(c) <a href="tel:%28510%29928-2683" target="_blank">(510)928-2683</a><o:p></o:p></pre>
<pre>"building energy simulations at your fingertips"<o:p></o:p></pre>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On 1/29/2016 2:41 AM, Joe Huang wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">I actually helped to develop a method to model thermal bridges in DOE-2 back in 1986 that has never been widely disseminated, although I still find it the most practical way to model
2-D heat flows in whole-building simulations.<br>
<br>
This method uses a two-dimensional finite-element program (WALFERFN) that calculates one-dimensional equivalent response factors which are written directly into the DOE-2 layers library (BDLLIB.DAT), which can then be called by DOE-2 just like any other response
factor in the library.<br>
<br>
I've always used this technique in my residential modeling, with the added benefit of not needing to input duplicate sets of wall layers for the stud and non-stud portions, which measurably simplifies the models and makes them easier to read. The last time
I did significant work on this subject was in 2000-2002, when I created for the California Energy Commission a library of over 100 wall layers with metal framing and thus considerable thermal bridging. I compared the wall assembly U-values to that calculated
by ORNL's Heating-7 program, and they were right on. Unfortunately, a few years after the project was completed, the Commission decided to move to EnergyPlus as their reference program, and so this work was effectively abandoned.<br>
<br>
For more information on this technique, i.e., creating 2-D response factors, please see this report:<br>
<a href="http://www.whiteboxtechnologies.com/PAPERS/96_12_YJH_2Drespfacs_CEC_rpt.pdf" target="_blank">http://www.whiteboxtechnologies.com/PAPERS/96_12_YJH_2Drespfacs_CEC_rpt.pdf</a><br>
<br>
If there's anyone who's still running DOE-2 in batch, rather than just the eQUEST interface, this procedure should be quite understandable. Just e-mail me and I'll be happy to give you a copy of the WALFERFN program and some sample input files.
<br>
<br>
Joe <o:p></o:p></p>
<pre>Joe Huang <o:p></o:p></pre>
<pre>White Box Technologies, Inc.<o:p></o:p></pre>
<pre>346 Rheem Blvd., Suite 205A<o:p></o:p></pre>
<pre>Moraga CA 94556<o:p></o:p></pre>
<pre><a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre><a href="http://weather.whiteboxtechnologies.com" target="_blank">http://weather.whiteboxtechnologies.com</a> for simulation-ready weather data<o:p></o:p></pre>
<pre><a href="http://www.whiteboxtechnologies.com" target="_blank">http://www.whiteboxtechnologies.com</a><o:p></o:p></pre>
<pre>(o) <a href="tel:%28925%29388-0265" target="_blank">(925)388-0265</a><o:p></o:p></pre>
<pre>(c) <a href="tel:%28510%29928-2683" target="_blank">(510)928-2683</a><o:p></o:p></pre>
<pre>"building energy simulations at your fingertips"<o:p></o:p></pre>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On 1/28/2016 1:22 PM, Jim Dirkes wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">There is also a landmark study by Morrison Hershfield in Canada which I don't have access to at the moment that should provide guidance.<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Thu, Jan 28, 2016 at 4:11 PM, Marcus Sheffer <<a href="mailto:sheffer@sevengroup.com" target="_blank">sheffer@sevengroup.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Follow the guidance in ASHRAE 90.1 Appendix A to determine the whole assembly values.<br>
<br>
Marcus Sheffer<br>
7group<br>
<br>
-----Original Message-----<br>
From: Jones, Christopher [mailto:<a href="mailto:Christopher.r.Jones@wspgroup.com" target="_blank">Christopher.r.Jones@wspgroup.com</a>]<br>
Sent: Thursday, January 28, 2016 8:30 AM<br>
To: Luis Peréz-Lombard; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">
bldg-sim@lists.onebuilding.org</a><br>
Subject: Re: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2<br>
<br>
Hello Sir,<br>
eQuest does not have the capability to directly model thermal bridges. The typical methodology is to calculate the effective U-value of the insulation/thermal bridge layer when building your layers for the construction. BC Hydro has published significant research
on building envelope thermal bridging. See the lower portion of the webpage:<br>
<a href="https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal" target="_blank">https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal</a><br>
<br>
<br>
<br>
<br>
Christopher Jones, P.Eng.<br>
Senior Engineer<br>
<br>
WSP Canada Inc.<br>
2300 Yonge Street, Suite 2300<br>
Toronto, ON M4P 1E4<br>
T <a href="tel:%2B1%20416-644-4226" target="_blank">+1 416-644-4226</a><br>
F <a href="tel:%2B1%20416-487-9766" target="_blank">+1 416-487-9766</a><br>
C <a href="tel:%2B1%20416-697-0056" target="_blank">+1 416-697-0056</a><br>
<br>
<a href="http://www.wspgroup.com" target="_blank">www.wspgroup.com</a><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><br>
-----Original Message-----<br>
From: Bldg-sim [mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] On Behalf Of Luis Peréz-Lombard<br>
Sent: Thursday, January 28, 2016 4:08 AM<br>
To: <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br>
Subject: [Bldg-sim] MODELLING THERMAL BRDIGES IN e-quest or DOE2<br>
<br>
Dear building simulation colleagues,<br>
I would very much appreciate any insights or work around to simulate envelope thermal bridges in e-quest.<br>
Sincerely,<br>
LPL<br>
-------------------------------------------------------------<br>
Luis Pérez-Lombard<br>
Dr. Ingeniero Industrial<br>
Profesor Contratado Doctor<br>
Departamento de Ingeniería Energética<br>
Escuela Superior de Ingenieros<br>
Universidad de Sevilla<br>
Camino de los Descubrimientos s/n<br>
41092 SEVILLA<br>
Tfno.: 95.448.72.56<br>
Fax: 95.446.31.53<br>
e-mail: <a href="mailto:lpl@us.es" target="_blank">lpl@us.es</a><br>
-------------------------------------------------------------<br>
<br>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">James V Dirkes II, PE, BEMP, LEED AP<br>
CEO/President<br>
The Building Performance Team Inc.<br>
1631 Acacia Dr, GR, Mi 49504<br>
<br>
Direct: <a href="tel:616.450.8653" target="_blank">616.450.8653</a><br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">James V Dirkes II, PE, BEMP, LEED AP<br>
CEO/President<br>
The Building Performance Team Inc.<br>
1631 Acacia Dr, GR, Mi 49504<br>
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Direct: 616.450.8653<br>
<a href="mailto:jim@buildingperformanceteam.com" target="_blank">jim@buildingperformanceteam.com</a><br>
<br>
<a href="http://buildingperformanceteamcom" target="_blank">Website </a>l <a href="https://www.linkedin.com/pub/jim-dirkes/7/444/413" target="_blank">LinkedIn</a><o:p></o:p></p>
<p style="margin-bottom:6.0pt;text-autospace:none"><span style="font-size:13.5pt;font-family:"Calibri","sans-serif"">Fail faster!</span><o:p></o:p></p>
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