<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Thank you Michael and Jeff for your help. I really appreciate it.</div><div dir="auto"><br></div><div dir="auto">Regards</div><div dir="auto"><br></div><div dir="auto">Ahmad</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><div style="font-size:12px;color:#575757" dir="auto">Sent from my Galaxy</div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: "Weller, Michael" <mweller@glumac.com> </div><div>Date: 5/10/23 2:18 am (GMT+10:00) </div><div>To: "Haberl, Jeff" <jhaberl@tamu.edu>, equest-users@onebuilding.org, Ahmad Fraij <fraij@yahoo.com> </div><div>Subject: RE: [Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software </div><div><br></div></div>
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<p class="MsoNormal">Hi Ahmad, Jeff,</p>
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<p class="MsoNormal">I haven’t used it before, but it does look like you can use the GAS-HEAT-PUMP code-word as the HEAT-SOURCE for DX units to model a gas-engine-driven compressor (see below).
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<p class="MsoNormal">In the User Guide Volume 2 (dictionary), the Air-to-Air Heat Pump section should have more information about the associated keywords for the system:</p>
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Michael Weller
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</span></b><span style="font-size:7.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Associate</span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Energy Modeling Lead</span></p>
<p class="MsoNormal"><b><span style="font-size:6.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA"><br>
</span></b><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A4B52E" lang="EN-CA">GLUMAC</span></b><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0092D2" lang="EN-CA"> </span></b><span style="font-size:7.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">engineers
for a sustainable future™</span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">A Tetra Tech Company</span><span style="font-family:"Arial",sans-serif" lang="EN-CA"></span></p>
<p class="MsoNormal"><span style="font-size:6.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA"> </span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">17885 Von Karman Ave, Suite 500</span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Irvine, CA 92614</span></p>
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</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Direct: 949.383.4941</span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray" lang="EN-CA">Email:
<a href="mailto:mweller@glumac.com"><span style="color:#0563C1">mweller@glumac.com</span></a></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Haberl, Jeff via Equest-users<br>
<b>Sent:</b> Wednesday, October 4, 2023 7:28 AM<br>
<b>To:</b> equest-users@onebuilding.org; Ahmad Fraij <fraij@yahoo.com><br>
<b>Subject:</b> Re: [Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software</p>
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<span style="font-size:10.0pt;font-family:"Segoe UI Emoji",sans-serif;color:black">⚠</span><span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black"> <b>CAUTION:
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hello Ahmad:</span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I'm not clear about your system. A quick look at the EQUEST manual does not show such a system in the index. </span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">However, a general google search of such systems shows lots of options, for example, a gas fired furnace combined with a heat pump? Or possibly a nat gas fired engine driving a heat pump compressor. </span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">The first system is easy to model. The second would be a challenge.</span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Jeff</span></p>
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<p>Jeff S. Haberl, Ph.D., P.E.inactive, FASHRAE, FIBPSA <i>We are like fluttering leaves on the branches of trees</i></p>
<p>Liz & Nelson Mitchell Professor in Residential Design <i>in the forest of the landscape that surrounds us.</i></p>
<p>Department of Architecture <i>If we could, for just a moment, flutter together,</i> </p>
<p>Texas A&M University
<i>we could lift the earth up to be a better place. JSH</i> 2022</p>
<p>College Station, TX 77845-3581 </p>
<p>Office: 979-845-6507, Lab: 979-845-6065</p>
<p>Fax 979-862-2457</p>
<p><a href="mailto:jhaberl@tamu.edu,www.esl.tamu.edu">jhaberl@tamu.edu,www.esl.tamu.edu</a></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>> on behalf of Ahmad Fraij via Equest-users
<<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>><br>
<b>Sent:</b> Tuesday, October 3, 2023 12:43 AM<br>
<b>To:</b> <a href="mailto:equest-users@onebuilding.org">equest-users@onebuilding.org</a> <<a href="mailto:equest-users@onebuilding.org">equest-users@onebuilding.org</a>><br>
<b>Subject:</b> [Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software</span>
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<p style="mso-line-height-alt:.75pt" class="MsoNormal"><span style="font-size:1.0pt;color:white">Hello, Does anybody has idea how to model gas engine heat pump (GHP) in eQUEST software? There are two types of this GHP as below: Air to water GHP unit. VRF GHP.
Please refer to the below link for more details about these GHPs. Thanking in
</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif">Does anybody has idea how to model gas engine heat pump (GHP) in eQUEST software? There are two types of this GHP as below:</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif">Please refer to the below link for more details about these GHPs. Thanking in advance for your help.</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif"><a href="https://urldefense.com/v3/__https:/www.yanmar.com/global/energy/ghp/__;!!KwNVnqRv!BeJ7hz6XAHGf1EVB7V0mIp8ljoUmLoSOavtcCZRqc2tzGfFjxjccK-8dHpAOCCwILEl0hYyB0HJQzZQCrs9AOAOeKW_IOUgD$">Gas-Engine
Heat Pump (GHP)<span style="font-family:"MS Gothic"">｜</span>Energy Systems<span style="font-family:"MS Gothic"">｜</span>YANMAR</a></span></p>
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<span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#1D2228">Gas-Engine Heat Pump (GHP)</span><span style="font-size:10.5pt;font-family:"MS Gothic";color:#1D2228">｜</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#1D2228">Energy
Systems</span><span style="font-size:10.5pt;font-family:"MS Gothic";color:#1D2228">｜</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#1D2228">YANMAR</span></h2>
<p style="line-height:12.0pt" class="xydp44cbae05card-description"><span style="font-size:9.0pt;font-family:"Segoe UI",sans-serif;color:#979EA8">The introduction of Gas-Engine Heat Pump (GHP) from Yanmar.</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif">Ahmad</span></p>
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