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<p class="MsoNormal"><span style="color:#1F497D">Hi Nick,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">You could try modeling these portable process chillers as refrigerated casework. There are refrigeration capabilities in eQUEST v3.64 and v3.65 running in DOE-2.2 mode, accessible through Refrigeration tabs at
systems and zones. There are options to model auxiliary loads that can be seen as cooling loads in the zone(s) that contain the “casework”. See the DOE-2 documentation for REFG-AUX-KW, REFG-ASH-KW and REFG-AUX-FRAC. I don’t see an option for an indoor condenser
(to model portable chillers with no outside condenser), so you would need to adjust the condenser and performance curve keywords accordingly to keep compressor power independent of ambient temperature.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regardless of how you account for the process chiller energy, you need to have a good estimate of the process load on the laboratory hydronic loops. My preference would be to adjust the process load and/or load
schedule at the space(s) using EQUIPMENT-KW or SOURCE-BTU/HR to account for the refrigeration energy, and use the SPACE:EQUIP-SENSIBLE or SPACE:SOURCE-SENSIBLE to model heat rejected to indoor zones.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP
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<p class="MsoNormal"><b>From:</b> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Nicholas Caton via Equest-users<br>
<b>Sent:</b> Thursday, January 04, 2018 7:31 AM<br>
<b>To:</b> equest-users@onebuilding.org<br>
<b>Subject:</b> [Equest-users] small INDOOR chillers<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi all, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Consider the following type of equipment: <a href="http://www.advantageengineering.com/portableChillers/index.php">
http://www.advantageengineering.com/portableChillers/index.php</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve observed a few times now small, process chillers used to pull heat from small hydronic loops in laboratory operaitons. Sometimes they’re stuck in a corner out of the way, and other times they’re on casters, typically with some kind
of special plug to pull higher amperage/voltage.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I know I can consider the whole kit as an electric process load, and that’s what I’ve done for situations like this to-date, but to make sure I’m not missing something: Is it possible to actually define a packaged CHILLER + process loop
in an eQuest model that rejects heat into an indoor zone?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">~Nick<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#3A7A46"><img border="0" width="726" height="9" id="Picture_x0020_1" src="cid:image009.png@01D3853D.884244E0"><o:p></o:p></span></p>
<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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</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Schneider Electric</span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">D </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6361
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</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">E </span><span style="color:#1F497D"><a href="mailto:nicholas.caton@schneider-electric.com"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">nicholas.caton@schneider-electric.com</span></a><o:p></o:p></span></p>
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