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<p class="MsoNormal">Well summarized Morteza – thanks for sharing with me and the community!
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">(this may well save someone else in a similar situation)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can only really speculate alongside you at this juncture, but “maximum number of expression dependency” does make it sound as though you crossed some limit of complexity between your 4<sup>th</sup> and 6<sup>th</sup> wizard shell/zone.
I have the impression such limits can occasionally be helpfully shifted by toggling off compliance rulesets, which can substantially reduce the lines defining a wizard-generated model. There may well be a unique bug here specific to doe2.3 and/or your model’s
selected wizard inputs.<o:p></o:p></p>
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<p class="MsoNormal">In any case, we can only carry the ball so far – I think you’ve done a great job in documenting the matter so that developers may have a chance of rooting out the issue!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">~Nick<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span style="color:#3A7A46"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:4.5pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">913 . 564 . 6361<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">785 . 410 . 3317<o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"><a href="mailto:nicholas.caton@se.com"><span style="font-family:"Calibri",sans-serif;color:#626469">nicholas.caton@se.com</span></a></span></u><span style="font-size:9.0pt;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219<br>
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<p class="MsoNormal"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Morteza Kasmai via Equest-users<br>
<b>Sent:</b> Tuesday, June 16, 2020 8:21 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] BDL Errors on a Six Story Building<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="color:red">[External email: Use caution with links and attachments]</span><o:p></o:p></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Hi Nick, </span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13"><br>
Thank you for providing your thoughts and suggestions on this issue.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Unfortunately toggling off the daylighting options didn’t work. Even after removing daylighting options from all of the floors the message did not disappear.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">In another attempt to resolve the
</span><span style="font-family:"Tahoma",sans-serif;color:#274E13">BDL Errors that was the main issue with this model,
</span><span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Shaun Martin ran the project in DOE-2.2, made some changes and the errors were gone.</span><span style="font-size:12.0pt;line-height:115%;font-family:"Arial",sans-serif;color:#222222">
</span><span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">But the corrected model in DOE-2.2 had another issue - too many unmet hours. The model simulates without any error but now there are more than 3,000 heating
throttling hours below the range, which are distributed through all of the systems. I could not resolve the unmet hours by increasing the minimum flow ratio or air flow of the zones within the wizard mode.
</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Shaun kindly suggested several steps for resolving the unmet hours issue in the DDE mode; however, I wanted to resolve some of the issues affecting the unmet hours
within the wizard mode.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Comparing the simulation results of this model from DOE-2.2 and 2.3 is very interesting. Simulation results of the Five Story Building model (DOE-2.3) that was attached
in my first email showed no unmet hours. The corrected Six Story Building (DOE-2.2) had too many unmet hours distributed through all of the thermal zones; even the zones that had no unmet heating have unmet hours now. And when comparing SV-A reports of identical
VAV systems from 2.3 and 2.2 there are huge differences between calculated capacities and air flows.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Since I wanted to complete the model with DOE-2.3, tried to resolve the encountered errors related to exceeding eQUEST expressions by combining some of the similar
thermal zones in the fifth & sixth floors. Surprisingly there were no errors at this time and I could run the model and get the simulation results with just 9 hours below the heating range!
</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">In another attempt I noticed if I assume that the fifth floor and sixth floor are identical and use floor multipliers there won’t be any errors. However, if I do not
use the floor multiplier I will encounter 4,916 errors. </span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">It seems in any cases when the maximum number of expression dependency lists exceeds the limit as shown in the screenshot below, I will get BDL errors.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">I’m wondering if this is the case for all models using DOE-2.3.</span><span style="color:#274E13"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;line-height:115%;font-family:"Tahoma",sans-serif;color:#274E13">Thank you for your time.</span><span style="color:#274E13"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13">Morteza, <br clear="all">
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<p style="margin-bottom:0in;margin-bottom:.0001pt"><span style="font-family:"Arial",sans-serif;color:#006600;letter-spacing:.15pt">Morteza Kasmaei<br>
Senior Architect</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#006600">LEED AP BD+C, GGP</span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#006600"> </span></b><o:p></o:p></p>
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<p class="MsoNormal">On Fri, Jun 12, 2020 at 11:22 PM <<a href="mailto:equest-users-request@lists.onebuilding.org">equest-users-request@lists.onebuilding.org</a>> wrote:<o:p></o:p></p>
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When replying, please edit your Subject line so it is more specific<br>
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Today's Topics:<br>
<br>
1. Re: BDL Errors on a Six Story Building (Nicholas Caton)<br>
2. Re: Solar Thermal Energy Assisted Cooling (Nicholas Caton)<br>
3. Re: Solar Thermal Energy Assisted Cooling (Damon Lapping)<br>
<br>
<br>
<br>
---------- Forwarded message ----------<br>
From: Nicholas Caton <<a href="mailto:Nicholas.Caton@se.com" target="_blank">Nicholas.Caton@se.com</a>><br>
To: Morteza Kasmai <<a href="mailto:morteza.kasmai@gmail.com" target="_blank">morteza.kasmai@gmail.com</a>><br>
Cc: "<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>" <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>
Bcc: <br>
Date: Fri, 12 Jun 2020 16:23:00 +0000<br>
Subject: Re: [Equest-users] BDL Errors on a Six Story Building<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It sounds as though the wizards are struggling to apply/define inputs necessary for daylighting control, specifically for one or more zones which do not feature windows.<o:p></o:p></p>
<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">To explore the matter, I might suggest toggling off the daylighting options for your 5<sup>th</sup> shell and see if that gets rid of the initial error and permits you to define
your 6<sup>th</sup> shell without issue. If that works, then you have isolated the matter and can explore some things like re-definining your custom window layout and combing through / iteratively enabling daylighting within that shell.<o:p></o:p></p>
<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">Let us know if that helps<o:p></o:p></p>
<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">~Nick<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <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 style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><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:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy Performance Contracting
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">785 . 410 . 3317</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:9.0pt;font-family:"Arial",sans-serif;color:#626469"><a href="mailto:nicholas.caton@se.com" target="_blank"><span style="font-family:"Calibri",sans-serif;color:#626469">nicholas.caton@se.com</span></a></span></u><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219</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>From:</b> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Morteza Kasmai via Equest-users<br>
<b>Sent:</b> Friday, June 5, 2020 7:41 AM<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] BDL Errors on a Six Story Building<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p><span style="color:red">[External email: Use caution with links and attachments]</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-family:"Tahoma",sans-serif;color:#274E13">Dear eQUEST experts,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Tahoma",sans-serif;color:#274E13">I’m using eQUEST 3-65 7175 DOE 2.3 to model a six story 260,000 GSF building. Up to level 05 the only issue that I have
when leaving the Wizard is the following message. However the simulation works without any problem and provides the results.</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:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13"><img border="0" width="334" height="42" style="width:3.4791in;height:.4375in" id="gmail-m_-8844140929776520882_x005f_x0000_i1026" src="cid:image005.png@01D643F6.2F3C11D0" alt="image.png"></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:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13">When I add the sixth floor as a separate shell and leave the Wizard encounter 8,685 BDL Errors, which
relates to exceeding eQUEST expressions.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#274E13"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13">Inp and Pd2 files of both of the models are attached.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13">I would appreciate your guidance on resolving this issue.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#274E13"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="font-size:12.0pt;font-family:"Tahoma",sans-serif;color:#274E13">Thanks,<br>
Morteza </span><o:p></o:p></p>
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<p style="margin-bottom:0in;margin-bottom:.0001pt"><span style="font-family:"Arial",sans-serif;color:#006600;letter-spacing:.15pt">Morteza Kasmaei<br>
Senior Architect</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif;color:#006600">LEED AP BD+C, GGP</span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#006600"> </span></b><o:p></o:p></p>
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______________________________________________________________________<br>
This email has been scanned by the Symantec Email Security.cloud service.<br>
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---------- Forwarded message ----------<br>
From: Nicholas Caton <<a href="mailto:Nicholas.Caton@se.com" target="_blank">Nicholas.Caton@se.com</a>><br>
To: Damon Lapping <<a href="mailto:damon@greenlogik.co.za" target="_blank">damon@greenlogik.co.za</a>><br>
Cc: "<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>" <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>
Bcc: <br>
Date: Fri, 12 Jun 2020 16:41:11 +0000<br>
Subject: Re: [Equest-users] Solar Thermal Energy Assisted Cooling<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Damon,<o:p></o:p></p>
<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">So… a solar-powered refrigerant compressor?<o:p></o:p></p>
<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">I suppose you could model a small PV array to generate an appropriate kW output profile within eQuest, then just dump that into the building meter with a normal DX-system. You’ll
want that airside system to have some deliberately-assigned availability scheduling so that it cannot actively cool when there is insufficient daylight… but otherwise I think you’d define that system normally. The biggest potential hurdle with that approach
might be extrapolating the actual efficiency/performance of the equipment (sans solar contributions) from the manufacturer.
<o:p></o:p></p>
<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">I might sooner use a 3<sup>rd</sup> party software, purpose built for estimating PV system performance, over eQuest though... eQuest is capable but frankly a bit unwieldy for average
joes like me, lacking specialized and deep knowledge of PV technology. I would avoid it through post-processing if possible, but if you do go a 3<sup>rd</sup> party PV analysis route and you MUST get that generation into your eQuest model, you can use the
library entries for a PV generator alongside an electric sale meter to “back in” a generation profile aligning with your outside analysis.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I hope this is helpful!<o:p></o:p></p>
<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">~Nick<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 style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><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:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy Performance Contracting
</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:9.0pt;font-family:"Arial",sans-serif;color:#626469">913 . 564 . 6361</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">785 . 410 . 3317</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:9.0pt;font-family:"Arial",sans-serif;color:#626469"><a href="mailto:nicholas.caton@se.com" target="_blank"><span style="font-family:"Calibri",sans-serif;color:#626469">nicholas.caton@se.com</span></a></span></u><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219</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>From:</b> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Damon Lapping via Equest-users<br>
<b>Sent:</b> Friday, June 5, 2020 5:47 AM<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] Solar Thermal Energy Assisted Cooling<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p><span lang="EN-ZA" style="color:red">[External email: Use caution with links and attachments]</span><o:p></o:p></p>
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<p style="margin-bottom:15.0pt;background:white"><span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Good Day,</span><o:p></o:p></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Does anyone have experience in modelling solar thermal energy assisted cooling for HVAC? These systems use thermal energy collected from the solar collector and is converted
into mechanical work, which is used then used to compress the working fluid in a vapor compression cycle directly. So the HVAC system achieves the required setpoint temperature with less energy required from the compressor than previously required.</span><o:p></o:p></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">I have heard on some online platform that it can be done in equest but can't seem to find that link anymore.</span><o:p></o:p></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Can anyone help a brother out? :-)</span><o:p></o:p></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Thanks</span><o:p></o:p></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Regards</span><o:p></o:p></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Damon</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-ZA" style="color:#1F497D">Regards</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">DAMON </span></b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">LAPPING</span><span lang="EN-ZA" style="font-size:11.5pt;color:gray">,
</span><span lang="EN-ZA" style="color:gray">CEM®</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;color:#7F7F7F">Managing Consultant</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;color:black"><a href="mailto:damon@greenlogik.co.za" target="_blank"><span style="font-size:10.0pt;color:#7F7F7F">damon@greenlogik.co.za</span></a></span><o:p></o:p></p>
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---------- Forwarded message ----------<br>
From: Damon Lapping <<a href="mailto:damon@greenlogik.co.za" target="_blank">damon@greenlogik.co.za</a>><br>
To: "'Nicholas Caton'" <<a href="mailto:Nicholas.Caton@se.com" target="_blank">Nicholas.Caton@se.com</a>><br>
Cc: <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>
Bcc: <br>
Date: Fri, 12 Jun 2020 19:17:01 +0200<br>
Subject: Re: [Equest-users] Solar Thermal Energy Assisted Cooling<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA">Hi Nick,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA"> <o:p></o:p></span></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA">Not solar powered but rather using thermal energy to assist the compressor in the vapour compression cycle.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA" style="color:#1F497D">Regards</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA" style="color:#1F497D"> </span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">DAMON </span></b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">LAPPING</span><span lang="EN-ZA" style="font-size:11.5pt;color:gray">,
</span><span lang="EN-ZA" style="color:gray">CEM®, CRM®</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;color:#7F7F7F">Managing Consultant</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;color:black"><a href="mailto:damon@greenlogik.co.za" target="_blank"><span style="font-size:10.0pt;color:#7F7F7F">damon@greenlogik.co.za</span></a></span><span lang="EN-ZA"><o:p></o:p></span></p>
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</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span style="font-size:9.0pt;color:#7F7F7F">T.</span></i><span style="font-size:10.0pt;color:#7F7F7F"> +27
</span><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F">(0) 87 470 0650 </span><i><span style="font-size:9.0pt;color:#7F7F7F">F.</span></i><span style="font-size:10.0pt;color:#7F7F7F"> </span><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F">+27 (0)
86 763 1323</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span lang="EN-ZA" style="font-size:9.0pt;color:#7F7F7F">C.</span></i><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F"> +27 82 339 3865</span><span lang="EN-ZA"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b> Nicholas Caton <<a href="mailto:Nicholas.Caton@se.com" target="_blank">Nicholas.Caton@se.com</a>>
<br>
<b>Sent:</b> Friday, 12 June 2020 6:41 PM<br>
<b>To:</b> Damon Lapping <<a href="mailto:damon@greenlogik.co.za" target="_blank">damon@greenlogik.co.za</a>><br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: [Equest-users] Solar Thermal Energy Assisted Cooling<span lang="EN-ZA"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Damon,<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">So… a solar-powered refrigerant compressor?<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I suppose you could model a small PV array to generate an appropriate kW output profile within eQuest, then just dump that into the building meter with a normal DX-system. You’ll
want that airside system to have some deliberately-assigned availability scheduling so that it cannot actively cool when there is insufficient daylight… but otherwise I think you’d define that system normally. The biggest potential hurdle with that approach
might be extrapolating the actual efficiency/performance of the equipment (sans solar contributions) from the manufacturer.
<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I might sooner use a 3<sup>rd</sup> party software, purpose built for estimating PV system performance, over eQuest though... eQuest is capable but frankly a bit unwieldy for average
joes like me, lacking specialized and deep knowledge of PV technology. I would avoid it through post-processing if possible, but if you do go a 3<sup>rd</sup> party PV analysis route and you MUST get that generation into your eQuest model, you can use the
library entries for a PV generator alongside an electric sale meter to “back in” a generation profile aligning with your outside analysis.<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I hope this is helpful!<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">~Nick<span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span lang="EN-ZA"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Damon Lapping via Equest-users<br>
<b>Sent:</b> Friday, June 5, 2020 5:47 AM<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] Solar Thermal Energy Assisted Cooling<span lang="EN-ZA"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span lang="EN-ZA"><o:p></o:p></span></p>
<p><span lang="EN-ZA" style="color:red">[External email: Use caution with links and attachments]</span><span lang="EN-ZA"><o:p></o:p></span></p>
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<p style="margin-bottom:15.0pt;background:white"><span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Good Day,</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Does anyone have experience in modelling solar thermal energy assisted cooling for HVAC? These systems use thermal energy collected from the solar collector and is converted
into mechanical work, which is used then used to compress the working fluid in a vapor compression cycle directly. So the HVAC system achieves the required setpoint temperature with less energy required from the compressor than previously required.</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">I have heard on some online platform that it can be done in equest but can't seem to find that link anymore.</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p style="margin-bottom:15.0pt;background:white;box-sizing:border-box;font-variant-ligatures:normal;font-variant-caps:normal;text-align:start;text-decoration-style:initial;text-decoration-color:initial;word-spacing:0px">
<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Can anyone help a brother out? :-)</span><span lang="EN-ZA"><o:p></o:p></span></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Thanks</span><span lang="EN-ZA"><o:p></o:p></span></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Regards</span><span lang="EN-ZA"><o:p></o:p></span></p>
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<span lang="EN-ZA" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Damon</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA" style="color:#1F497D">Regards</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA" style="color:#1F497D"> </span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">DAMON </span></b><span lang="EN-ZA" style="font-size:11.5pt;color:#7F7F7F">LAPPING</span><span lang="EN-ZA" style="font-size:11.5pt;color:gray">,
</span><span lang="EN-ZA" style="color:gray">CEM®</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;color:#7F7F7F">Managing Consultant</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;color:black"><a href="mailto:damon@greenlogik.co.za" target="_blank"><span style="font-size:10.0pt;color:#7F7F7F">damon@greenlogik.co.za</span></a></span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;color:black"><a href="https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.greenlogik.co.za%2Fabout.html&data=02%7C01%7CNicholas.Caton%40se.com%7C69baade6035e4378287108d811f84fc1%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C637279105475125085&sdata=87JySQTciEI18%2BtKueKmmWUX0EVrrJI3dP5vsSLr8hs%3D&reserved=0" target="_blank"><span style="font-size:10.0pt;color:#30AF3B">www.greenlogik.co.za</span></a></span><span style="font-size:10.0pt;color:#2BA42D"> </span><span style="font-size:10.5pt;color:black">
</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span style="font-size:9.0pt;color:#7F7F7F">T.</span></i><span style="font-size:10.0pt;color:#7F7F7F"> +27
</span><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F">(0) 87 470 0650 </span><i><span style="font-size:9.0pt;color:#7F7F7F">F.</span></i><span style="font-size:10.0pt;color:#7F7F7F"> </span><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F">+27 (0)
86 763 1323</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span lang="EN-ZA" style="font-size:9.0pt;color:#7F7F7F">C.</span></i><span lang="EN-ZA" style="font-size:10.0pt;color:#7F7F7F"> +27 82 339 3865</span><span lang="EN-ZA"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-ZA"><img border="0" width="236" height="135" style="width:2.4583in;height:1.4062in" id="_x0000_i1041" src="cid:image006.jpg@01D643F6.2F3C11D0"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><i><span lang="EN-ZA" style="font-size:10.0pt;font-family:"Calibri Bold";color:#6AA84F;background:white">UNIDO Certified Energy Management Professional
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