<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:#274e13"><p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">Hi Nick, </span></p><p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif"><br>
Thank you for providing your thoughts and suggestions on this issue.</span></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">In another attempt to resolve the </span><span style="font-family:Tahoma,sans-serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">BDL
Errors that was the main issue with this model, </span><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">Shaun Martin ran the project in DOE-2.2, made
some changes and the errors were gone.</span><span style="font-size:12pt;line-height:115%;font-family:Arial,sans-serif;color:rgb(34,34,34)"> </span><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">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></p><p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif"></span></p><div><img src="cid:ii_kbhydsb810" alt="image.png" width="449" height="51"><br></div>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">I’m wondering if this is the case for all
models using DOE-2.3.</span></p>
<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">Thank you for your time.</span></p>
<span style="font-size:12pt;line-height:115%;font-family:Tahoma,sans-serif">Morteza,</span> <br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"></div><div dir="ltr"><p style="margin-bottom:0.0001pt;line-height:normal"><span style="color:rgb(0,102,0);font-family:Arial,sans-serif;letter-spacing:0.2px">Morteza Kasmaei<br></span><span style="color:rgb(0,102,0);font-family:Arial,sans-serif;letter-spacing:0.2px">Senior Architect</span><span style="color:rgb(0,102,0);font-family:Arial,sans-serif;letter-spacing:0.2px"><br></span></p>
<span style="line-height:115%;font-family:Arial,sans-serif;color:rgb(0,102,0)">LEED AP BD+C, GGP<font size="2" style="font-weight:bold"> </font></span><br><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">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:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send Equest-users mailing list submissions to<br>
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Today's Topics:<br>
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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<br>
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<p class="MsoNormal">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.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">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.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Let us know if that helps<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">~Nick<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><b><span style="font-family:Arial,sans-serif;color:rgb(58,122,70)">Nick Caton, P.E., BEMP</span></b><span style="color:rgb(58,122,70)"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"> Senior Energy Engineer<u></u><u></u></span></p>
<p class="MsoNormal" style="text-indent:4.5pt"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"> Energy and Sustainability Services</span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><br>
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<p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)">785 . 410 . 3317<u></u><u></u></span></p>
<p class="MsoNormal"><u><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"><a href="mailto:nicholas.caton@se.com" target="_blank"><span style="font-family:Calibri,sans-serif;color:rgb(98,100,105)">nicholas.caton@se.com</span></a></span></u><span style="font-size:9pt;color:rgb(31,73,125)"><u></u><u></u></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)">15200 Santa Fe Trail Drive<br>
Suite 204<br>
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<p class="MsoNormal"><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<u></u><u></u></p>
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<p><span style="color:red">[External email: Use caution with links and attachments]</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family:Tahoma,sans-serif;color:rgb(39,78,19)">Dear eQUEST experts,</span><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:Tahoma,sans-serif;color:rgb(39,78,19)">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><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:12pt;font-family:Tahoma,sans-serif;color:rgb(39,78,19)">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><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:rgb(39,78,19)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Tahoma,sans-serif;color:rgb(39,78,19)">Inp and Pd2 files of both of the models are attached.</span><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Tahoma,sans-serif;color:rgb(39,78,19)">I would appreciate your guidance on resolving this issue.</span><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:rgb(39,78,19)"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-bottom:12pt"><span style="font-size:12pt;font-family:Tahoma,sans-serif;color:rgb(39,78,19)">Thanks,<br>
Morteza </span><span style="color:rgb(39,78,19)"><u></u><u></u></span></p>
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<p style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;color:rgb(0,102,0);letter-spacing:0.15pt">Morteza Kasmaei<br>
Senior Architect</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-family:Arial,sans-serif;color:rgb(0,102,0)">LEED AP BD+C, GGP</span><b><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,102,0)"> </span></b><u></u><u></u></p>
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<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: 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<br>
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<p class="MsoNormal"><span>Hi Damon,<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>So… a solar-powered refrigerant compressor?<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>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.
<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>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.<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>I hope this is helpful!<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>~Nick<u></u><u></u></span></p>
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<p class="MsoNormal"><b><span style="font-family:Arial,sans-serif;color:rgb(58,122,70)">Nick Caton, P.E., BEMP</span></b><span style="color:rgb(58,122,70)"><u></u><u></u></span></p>
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<p class="MsoNormal"><b><span>From:</span></b><span> 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<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p><span lang="EN-ZA" style="color:red">[External email: Use caution with links and attachments]</span><span lang="EN-ZA"><u></u><u></u></span></p>
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<p><span lang="EN-ZA"> <u></u><u></u></span></p>
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<span lang="EN-ZA" style="font-size:12pt;font-family:Arial,sans-serif;color:black">Good Day,<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:15pt;margin-left:0in;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:12pt;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.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:15pt;margin-left:0in;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:12pt;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.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:15pt;margin-left:0in;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:12pt;font-family:Arial,sans-serif;color:black">Can anyone help a brother out? :-)<u></u><u></u></span></p>
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<span lang="EN-ZA" style="font-size:12pt;font-family:Arial,sans-serif;color:black">Thanks<u></u><u></u></span></p>
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<span lang="EN-ZA" style="font-size:12pt;font-family:Arial,sans-serif;color:black">Regards<u></u><u></u></span></p>
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<span lang="EN-ZA" style="font-size:12pt;font-family:Arial,sans-serif;color:black">Damon<u></u><u></u></span></p>
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<br><br><br>---------- 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<br><div lang="EN-ZA"><div class="gmail-m_-8844140929776520882WordSection1"><p class="MsoNormal">Hi Nick,<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">Not solar powered but rather using thermal energy to assist the compressor in the vapour compression cycle.<u></u><u></u></p><p class="MsoNormal"><span><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:rgb(31,73,125)">Regards<u></u><u></u></span></p><p class="MsoNormal"><span style="color:rgb(31,73,125)"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:11.5pt;color:rgb(127,127,127)">DAMON </span></b><span style="font-size:11.5pt;color:rgb(127,127,127)">LAPPING</span><span style="font-size:11.5pt;color:gray">, </span><span style="color:gray">CEM®</span><span style="color:gray">, CRM®</span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)">Managing Consultant</span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:black"><a href="mailto:damon@greenlogik.co.za" target="_blank"><span style="font-size:10pt;color:rgb(127,127,127)">damon@greenlogik.co.za</span></a></span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:black"><a href="http://www.greenlogik.co.za/about.html" target="_blank"><span style="font-size:10pt;color:rgb(48,175,59)">www.greenlogik.co.za</span></a></span><span lang="EN-US" style="font-size:10pt;color:rgb(43,164,45)"> </span><span lang="EN-US" style="font-size:10.5pt;color:black"> </span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><i><span lang="EN-US" style="font-size:9pt;color:rgb(127,127,127)">T.</span></i><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)"> +27 </span><span style="font-size:10pt;color:rgb(127,127,127)">(0) 87 470 0650 </span><i><span lang="EN-US" style="font-size:9pt;color:rgb(127,127,127)">F.</span></i><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)"> </span><span style="font-size:10pt;color:rgb(127,127,127)">+27 (0) 86 763 1323</span><span style="font-size:12pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><i><span style="font-size:9pt;color:rgb(127,127,127)">C.</span></i><span style="font-size:10pt;color:rgb(127,127,127)"> +27 82 339 3865<u></u><u></u></span></p><p class="MsoNormal"><img border="0" width="236" height="135" style="width: 2.4583in; height: 1.4062in;" id="gmail-m_-8844140929776520882_x0000_i1039" src="cid:172bd4656df5b006a7"><span style="color:black"><u></u><u></u></span></p><p class="MsoNormal"><b><i><span style="font-size:10pt;font-family:"Calibri Bold";color:rgb(106,168,79);background:white">UNIDO Certified Energy Management Professional <u></u><u></u></span></i></b></p><p class="MsoNormal"><b><i><span style="font-size:10pt;font-family:"Calibri Bold";color:rgb(106,168,79);background:white">AEE CEM (Association of Energy Engineers Certified Energy Manager)<u></u><u></u></span></i></b></p><p class="MsoNormal"><b><i><span style="font-size:10pt;font-family:"Calibri Bold";color:rgb(106,168,79);background:white">SA Green Building Council Existing Building Performance Accredited </span></i></b><u></u><u></u></p><p class="MsoNormal"><b><i><span style="font-size:10pt;font-family:"Calibri Bold";color:rgb(106,168,79);background:white">Professional </span></i></b><i><span style="font-size:10pt;color:rgb(31,73,125)"><u></u><u></u></span></i></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span><u></u> <u></u></span></p></div><p class="MsoNormal"><u></u> <u></u></p><div><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> 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<u></u><u></u></span></p></div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span lang="EN-US">Hi Damon,<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">So… a solar-powered refrigerant compressor?<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">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. <u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">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.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">I hope this is helpful!<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">~Nick<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><div><p class="MsoNormal"><span lang="EN-US" style="font-family:Arial,sans-serif;color:rgb(58,122,70)"><img border="0" width="624" height="8" style="width: 6.5in; height: 0.0833in;" id="gmail-m_-8844140929776520882Picture_x0020_6" src="cid:172bd4656df6917eb8"></span><span lang="EN-US" style="font-family:Arial,sans-serif;color:rgb(58,122,70)"><u></u><u></u></span></p><p class="MsoNormal"><b><span lang="EN-US" style="font-family:Arial,sans-serif;color:rgb(58,122,70)">Nick Caton, P.E., BEMP</span></b><span lang="EN-US" style="color:rgb(58,122,70)"><u></u><u></u></span></p><table border="0" cellspacing="0" cellpadding="0" width="724" style="width:543pt;border-collapse:collapse"><tbody><tr><td width="230" valign="top" style="width:172.3pt;padding:0cm"><p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"> Senior Energy Engineer<u></u><u></u></span></p><p class="MsoNormal" style="text-indent:4.5pt"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"> Energy and Sustainability Services</span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"> Energy Performance Contracting </span><span style="font-size:9pt;color:rgb(31,73,125)"><u></u><u></u></span></p></td><td width="16" valign="top" style="width:11.8pt;padding:0cm"><p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(87,176,105)">D </span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(87,176,105)">M </span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(87,176,105)">E </span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(87,176,105)"> </span><span style="font-size:9pt;color:rgb(31,73,125)"> <u></u><u></u></span></p></td><td width="275" valign="top" style="width:206.5pt;padding:0cm"><p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)">913 . 564 . 6361<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)">785 . 410 . 3317<u></u><u></u></span></p><p class="MsoNormal"><u><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)"><a href="mailto:nicholas.caton@se.com" target="_blank"><span style="font-family:Calibri,sans-serif;color:rgb(98,100,105)">nicholas.caton@se.com</span></a></span></u><span style="font-size:9pt;color:rgb(31,73,125)"><u></u><u></u></span></p></td><td width="203" valign="top" style="width:152.4pt;padding:0cm"><p class="MsoNormal" align="right" style="margin-bottom:12pt;text-align:right"><span style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(98,100,105)">15200 Santa Fe Trail Drive<br>Suite 204<br>Lenexa, KS 66219</span><span style="font-size:9pt;color:rgb(31,73,125)"><u></u><u></u></span></p></td></tr><tr style="height:4pt"><td width="724" colspan="4" valign="top" style="width:543pt;padding:0cm;height:4pt"><p class="MsoNormal"><span style="color:rgb(58,122,70)"><img border="0" width="722" height="49" style="width: 7.5208in; height: 0.5104in;" id="gmail-m_-8844140929776520882Picture_x0020_2" src="cid:image004.png@01D640EE.0C6E2EF0"></span><span style="color:rgb(58,122,70)"><u></u><u></u></span></p></td></tr></tbody></table><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p></div><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><div><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> 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<u></u><u></u></span></p></div></div><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p><span style="color:red">[External email: Use caution with links and attachments]</span><u></u><u></u></p><div class="MsoNormal" align="center" style="text-align:center"><span><hr size="2" width="100%" align="center"></span></div><p> <u></u><u></u></p><div><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;background:white"><span style="font-size:12pt;font-family:Arial,sans-serif;color:black">Good Day,<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;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.<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;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.<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;font-family:Arial,sans-serif;color:black">Can anyone help a brother out? :-)<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;font-family:Arial,sans-serif;color:black">Thanks<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;font-family:Arial,sans-serif;color:black">Regards<u></u><u></u></span></p><p style="margin-right:0cm;margin-bottom:15pt;margin-left:0cm;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 style="font-size:12pt;font-family:Arial,sans-serif;color:black">Damon<u></u><u></u></span></p><p class="MsoNormal"><span><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:rgb(31,73,125)">Regards<u></u><u></u></span></p><p class="MsoNormal"><span style="color:rgb(31,73,125)"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:11.5pt;color:rgb(127,127,127)">DAMON </span></b><span style="font-size:11.5pt;color:rgb(127,127,127)">LAPPING</span><span style="font-size:11.5pt;color:gray">, </span><span style="color:gray">CEM®</span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)">Managing Consultant</span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:black"><a href="mailto:damon@greenlogik.co.za" target="_blank"><span style="font-size:10pt;color:rgb(127,127,127)">damon@greenlogik.co.za</span></a></span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" 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%7Cdf20d0d4d8434ef5a60408d8093ddb52%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C637269508560993357&sdata=CqC6AvO52CV4I8FJW9BBcQAsCUJXxClDZY7bmW3fTDg%3D&reserved=0" target="_blank"><span style="font-size:10pt;color:rgb(48,175,59)">www.greenlogik.co.za</span></a></span><span lang="EN-US" style="font-size:10pt;color:rgb(43,164,45)"> </span><span lang="EN-US" style="font-size:10.5pt;color:black"> </span><span style="font-size:10.5pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><i><span lang="EN-US" style="font-size:9pt;color:rgb(127,127,127)">T.</span></i><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)"> +27 </span><span style="font-size:10pt;color:rgb(127,127,127)">(0) 87 470 0650 </span><i><span lang="EN-US" style="font-size:9pt;color:rgb(127,127,127)">F.</span></i><span lang="EN-US" style="font-size:10pt;color:rgb(127,127,127)"> </span><span style="font-size:10pt;color:rgb(127,127,127)">+27 (0) 86 763 1323</span><span style="font-size:12pt;color:black"><u></u><u></u></span></p><p class="MsoNormal"><i><span style="font-size:9pt;color:rgb(127,127,127)">C.</span></i><span style="font-size:10pt;color:rgb(127,127,127)"> +27 82 339 3865<u></u><u></u></span></p><p class="MsoNormal"><img border="0" width="236" height="135" style="width: 2.4583in; 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