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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Franklin Gothic Book","sans-serif"">When do you get the fatal error?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black">Matthew J. Baron<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black"><img width="104" height="42" id="_x0000_i1028" src="cid:image002.png@01CE99C7.916F5FA0" alt="wendel EM"><br>
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</span><span style="font-size:9.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black">Wendel, 140 John James Audubon Pkwy, Suite 201, Buffalo, NY 14228<br>
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</span></b><span style="font-size:9.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black">wendelcompanies.</span><span style="font-size:1.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Franklin Gothic Book","sans-serif""><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""> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Kathryn Kerns<br>
<b>Sent:</b> Thursday, August 15, 2013 2:45 PM<br>
<b>To:</b> Nick Caton; James Hansen; Steve Woolery; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] LEED Issue with EQuest Software's Ability toModelBoilers on Ground Loops<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"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Nick if you have some way of adding a boiler to the HP Water Loop containing the Ground Loop HX without getting the "cannot combine a boiler and a ground loop
HX" fatal error, please show me. I must be missing something.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><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""> Nick Caton [mailto:ncaton@smithboucher.com]<br>
<b>Sent:</b> Thu 8/15/2013 10:59 AM<br>
<b>To:</b> James Hansen; Kathryn Kerns; Steve Woolery; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Equest-users] LEED Issue with EQuest Software's Ability toModelBoilers on Ground Loops</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">If it were me, I’d just add the inconsequential boiler, state/show I did so, and move on. Typically less effort than building an impenetrable case to someone being contrarian.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">To bullet #3: I think not for the standard output reports, but loop entering and exiting temperatures are options in the custom hourly output report dialog, which I believe you can assign to
any loop type. This will put out a CSV you can use with a spreadsheet software of your choosing to quickly come up with minimums/maximums over the simulation.
</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Attached is a past thread with a spelled out / illustrated procedure for setting up a custom hourly report, in case that’s helpful.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Best regards,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">~Nick</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;border:solid windowtext 1.0pt;padding:0in"><img width="119" height="37" id="Picture_x0020_1" src="cid:image003.jpg@01CE99C7.916F5FA0" alt="Image removed by sender. cid:489575314@22072009-0ABB"></span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:#2D4D5E">NICK CATON, P.E.</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:7.5pt;color:#CC9900">SENIOR ENGINEER</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">Smith & Boucher Engineers</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">25501 west valley parkway, suite 200</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">olathe, ks 66061</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">direct 913.344.0036</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">fax 913.345.0617</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><span class="MsoHyperlink"><span style="font-size:10.0pt">www.smithboucher.com</span></span></span><u><span style="font-size:10.0pt;color:blue">
</span></u><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt"> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>James Hansen<br>
<b>Sent:</b> Thursday, August 15, 2013 11:36 AM<br>
<b>To:</b> Kathryn Kerns; Steve Woolery; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] LEED Issue with EQuest Software's Ability to ModelBoilers on Ground Loops</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">You can absolutely add a boiler to a GSHP loop. Just add a boiler, and when asked which HW loop to assign it to, you can pick the GSHP Loop (as long as that loop is a "Water Loop HP" loop).</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">I think more than likely this is the reason you are getting the comments you are. This reviewer may know that you CAN add a boiler to a GSHP loop, which is the reason for comment #4.</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">I doubt GBCI is trying to eliminate eQuest as a modeling option.</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Also, printing out hourly reports from an eQuest run is often helpful in proving your case (whatever case that may be). If you can show, via hourly reports, that the heat picked up by the GSHP
heat exchanger exceeds the heating load for all 8,760 hours of the day, then case closed...that's all you need to submit.</span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;color:teal">GHT Limited<br>
</span></b><b><span style="font-size:11.0pt;color:#1F497D">James Hansen, P.E., LEED AP</span></b><span style="font-size:10.0pt;color:#1F497D"><br>
Senior Associate<br>
1010 N. Glebe Road, Suite 200<br>
Arlington, VA 22201-4749<br>
703-243-1200 (office)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">703-338-5754 (cell)<br>
703-276-1376 (fax)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D"><a href="http://www.ghtltd.com/" title="http://www.ghtltd.com/">www.ghtltd.com</a></span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt">
<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>Kathryn Kerns<br>
<b>Sent:</b> Thursday, August 15, 2013 12:27 PM<br>
<b>To:</b> Steve Woolery; <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] LEED Issue with EQuest Software's Ability to ModelBoilers on Ground Loops</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">Everyone, I have received a snarky comment from the LEED reviewers regarding eQuest and not being able to model back-up boilers on a ground heat pump loop. See below. The ground loop is large enough
not to generate any temperature low alarm messages, the ground loop pump flow never reaches 100% flow except for 1 hour and the ground loop heating capacity is never exceeded. These facts do not appear to be a good enough explanation not modeling the back
up gas boiler. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">My questions for the group are:</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">1. Is there a way to add a boiler or some additional heat source to a ground loop in eQuest? As far as I know the only work around I have discovered is to represent the ground loop by creating
a water loop and adding a magical no energy consuming boiler and fluid cooler to a heat pump water loop and change the water loop parameters to match ground loop parameters. Then you can add normal boilers that will start if the non-energy consuming ground
loop boiler is too small for the building heat load. I offered this option to the LEED reviewer and they replied that it was not an established work around.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">2. If there is no way to attach a boiler to a ground loop in eQuest, is there some established work around that somebody has used that was accepted by a LEED reviewer?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">3. Is there anything in the reports that lists the maximum and minimum ground loop temperatures? I have been unable to locate it.
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">4. Does anyone have an written explanation to answer "<em>If this
</em>[the boiler] <em>is not being modeled in the energy modeling software then provide a thorough explanation for why it cannot be modeled. "?</em></span><o:p></o:p></p>
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<p class="MsoNormal"><em><span style="font-size:10.0pt;color:black">5.</span></em><span style="font-size:10.0pt;color:black"> Does this sound like LEED is trying to eliminate eQuest software, and if so, is there anything we can do about it? "<em>in the future
the software selected to simulate the building components must be able to model those components "</em></span><o:p></o:p></p>
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<p class="MsoNormal"><em><span style="font-size:10.0pt;color:black">The project team could possibly demonstrate that the boiler would not operate through a series of engineering calculations, some other software that could possibly simulate the building’s loop
temperatures, or through a thorough explanation of how the system operation prevents the boiler from operating. In short the project team must demonstrate that the boiler will not operate, not just say that is the case without presenting some evidence. If
this is not being modeled in the energy modeling software then provide a thorough explanation for why it cannot be modeled. In the future the software selected to simulate the building components must be able to model those components or use an exceptional
calculation (work around) to do so (G2.2). </span></em><o:p></o:p></p>
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