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<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D">Thanks for the reply Nick!<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I did a little more research and found that DOE 2.3 only allows the water-side economizer to be ‘upstream,’ so I don’t need to explicitly state this as an input. Therefore, I switched my CHW Loop back to Parallel
which operates my chillers appropriately, and the economizer will automatically operate ’upstream’ from them. I’m now exploring the hourly reports to verify the loop’s operation is actually doing what I want it to.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Fortunately, you may not have to ‘roll your own’ anymore.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’ll keep you posted.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><!--MAKE-SURE-TO-SET-THE-TD-WIDTH--><td width="80" style="padding-right: 13px;" valign="top"><a href="http://www.archnexus.com"><img src="http://www.stationerycentral.com/SignatureImages10/ArchNexus-logo-80x99.png" nosend="1" border="0" width="80" height="99" alt='ARCH | NEXUS'></a></td><td width="1" valign="top" style="border-left: 1px #009AD9 solid;"> </td><td style="padding-left: 9px;"><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><td align="left" colspan="2"><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 11pt; font-weight: normal">DAVID W. GRIFFIN II</span></td></tr><tr><td style="padding-top: 6px;" align="left" colspan="2"><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 7.5pt;">BEMP</span><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 7.5pt;"><br>ENERGY ANALYST</span></td></tr><tr><td align="left" style="padding-top: 6px; padding-bottom: 6px;" colspan="2"><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 7.5pt;"> 2505 E Parleys Way<br>Salt Lake City, UT 84109 </span></td></tr><tr><td align="left" width="100%" style="padding-left: 3px; white-space: nowrap;"><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 7.5pt;"><b>Office</b> 801.924.5028 </span></td></tr><span style="color: #52616E; font-family: 'Verdana', sans-serif; font-size: 7.5pt;"></span><tr><td align="left" style="padding-top: 6px; padding-bottom: 0px; white-space: nowrap;" colspan="2"><span style="color: #52616E; font-size: 7.5pt; font-weight: normal; font-family: 'Verdana', sans-serif;"><a style="text-decoration: none; color: #52616E" href="http://www.archnexus.com"><font color="#52616E">archnexus.com</font></a></span></td></tr><tr><td align="left" style="padding-top: 6px; padding-bottom: 0px; white-space: nowrap;" colspan="2"><a href="https://twitter.com/arch_nexus"><img src="http://www.stationerycentral.com/SignatureImages10/ArchNexus-tw-sharp-L-29x22.png" nosend="1" border="0" width="29" height="22" alt="Twitter"></a><a href="https://www.facebook.com/pages/Architectural-Nexus/179588705397563?ref=ts&fref=ts"><img src="http://www.stationerycentral.com/SignatureImages10/ArchNexus-fb-sharp-L-29x22.png" nosend="1" border="0" width="29" height="22" alt="Facebook"></a><a href="https://www.youtube.com/channel/UCYRPWKF-yp-AUiI8ia2XfKw?feature=mhee"><img src="http://www.stationerycentral.com/SignatureImages10/ArchNexus-yt-sharp-L-29x22.png" nosend="1" border="0" width="29" height="22" alt="Youtube"></a><a href="https://www.linkedin.com/company/architectural-nexus"><img src="http://www.stationerycentral.com/SignatureImages10/ArchNexus-li-sharp-L-29x22.png" nosend="1" border="0" width="29" height="22" alt="LinkedIn"></a></td></tr></table></td></tr></table><style> a {color: #009AD9;} </style></span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Nicholas.Caton@schneider-electric.com [mailto:Nicholas.Caton@schneider-electric.com]
<br>
<b>Sent:</b> Thursday, July 07, 2016 1:10 PM<br>
<b>To:</b> David Griffin II<br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Equest-users] DOE 2.3 Water-side Economizer in Series<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">I gave the series chiller configurations a cursory overview a month or so back when I first saw it in the documentation. I haven’t tried putting it to practice just yet myself.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">A factor that’s possibly in play: I think this is a case where the engine (doe2.3) is presently a bit ahead of the interface (eQUEST), so leveraging these series configurations will necessitate manual INP additions/edits
behind what eQuest can currently display & permit to edit. Those inputs should stick around, but be mindful some actions in eQUEST (such as removing & re-creating chillers/loops, or changing types) could have the effect of stripping the associated inputs
in the INP – so it’s something to keep an eye on. Perhaps reason enough to push this towards the end of your development timeline.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I don’t have the most-current version of 3.65 presently installed, so I can’t easily verify, but I think what you might need to do is to assign your economizer chiller as “UPSTREAM” in the INP file – note the
missing CHW-SERIES-LOCN keyword present in the other two chillers:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="440" height="734" id="Picture_x0020_22" src="cid:image003.png@01D1D854.26704740"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">There is some more explicit documentation regarding the new keywords and inputs somewhere between the new 3.65’s documentation and the “what’s new” PDF… I can’t recall immediately but finding and reviewing that
against your INP is the natural next step.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Worth mentioning: I also am not terribly clear on how well the native WATER-ECONOMIZER chiller works in the most current version, and whether it has advanced beyond its previous operational trappings… you may
want to monitor behavior carefully to be sure it’s acting as you’d expect in any case. As you might know I’m a proponent of “rolling my own” waterside economizer chillers with load-management/sequencing for more operational control… write-ups on procedure
are floating about in the archives ;).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Best of luck, and let us know how this shakes out!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">~Nick<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E.</span></b><span style="color:#3A7A46"><o:p></o:p></span></p>
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<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:"Tahoma",sans-serif">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>David Griffin II via Equest-users<br>
<b>Sent:</b> Thursday, July 07, 2016 11:50 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] DOE 2.3 Water-side Economizer in Series<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m working on a model which has two chillers in parallel with a water-side economizer in series to both of them; i.e. the economizer is ‘upstream’ and the chillers are ‘downstream.’<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I know DOE 2.2 will not allow this configuration to be explicitly modeled, but after some research, it appeared DOE 2.3 would (see page 83 of DOE 2.3 Manual).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I get things setup (CHW Loop in SERIES, Chillers in DOWNSTREAM) the keyword to place the economizer UPSTREAM is unavailable, and the run errors out with “No upstream equipment specified.”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have attached the INP and PD2 file for reference. You may find it interesting in this model that I have more than one system assigned to a single zone (Thanks for adding this eQUEST team!).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Am I being overly optimistic about what DOE 2.3 can do, or am I missing something? Has anyone else tried to model this in DOE 2.3 and been successful?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Let me know.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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