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<p class="MsoNormal"><span style="color:#1F497D">Hi Scott,<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 couple of quick observations:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">While “OA Reset” is the default control mode for baseboard heating, I’d suggest that “Thermostatic” is more representative unless you specifically have a reason for applying a schedule to your baseboard
heating. That change may resolve your issue.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Baseboard heating is applied first before zonal heating – so size your baseboard heating carefully<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Baseboard heating is not autosized unless you are using DOE-2.3 so you will have to explicitly determine the baseboard heating capacities in the zones.<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">Beyond that you may wish to share the .inp and .pd2
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:106%"><b><span style="font-size:12.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006298">Footprint<br>
<br>
</span></b><b><span style="font-size:10.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006298">Brian Fountain<br>
</span></b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935">Associate<br>
</span><b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006892">d
</span></b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935">416 572 8501</span><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006892"> m
</span><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935">416 562 6831<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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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Burger, Scott via Equest-users<br>
<b>Sent:</b> March 12, 2020 9:32 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Baseboard/Fin Tube Coil Loads<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">CAUTION: EXTERNAL SENDER
<o:p></o:p></span></p>
<div>
<p class="MsoNormal">Dear eQuest users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m a novice eQuest user who is looking for some help regarding a project. I’ve used these forums to help gain knowledge of the program and how to make sense of it for my own work; however, the learning curve has been steep.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I developed a model for an existing building in conjunction with an onsite energy audit. In addition to completing an energy analysis and simulation, we are required to develop peak hourly heating and cooling loads for potential design
of a GSHP system. The building uses 5 AHUs each with chilled water coils for cooling and hot water coils for heating. Additionally, there are fin tube radiators around most of the perimeter of the building. My goal is to disaggregate the ventilation portion
of the peak heating load from the baseboard portion of the peak heating load. My research online and combing of forums indicates that disaggregating ventilation loads using eQuest is not a simple process. My initial thought was that if I can determine my hourly
baseboard heating loads, I can estimate that the ventilation load accounts for the rest of the building’s hourly heating load. However, after running an hourly simulation, I noticed that the heating coil load on the CIRCULATION-LOOPs that serve the fin-tube
radiators show 0s from 1 AM – 6 AM. To verify this, I added “Zones” into my hourly simulation and noticed the same issue—0 “Baseboard heat output to zone (Btu/hr)” during hours from 1 AM – 6 AM.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On the Air-Side, the baseboards are controlled via “Outdoor Reset”, and I verified that the reset schedule at the system level wouldn’t preclude the baseboards from running during those hours. On the Water-Side, I verified that the boiler
is in operation during those hours via a boiler schedule and that the actual HW loop serving the baseboards is in operation during those hours via a baseboard loop schedule as well. Based on the OA temp and the zone temperature (which is below the heating
throttling range), the fin tube radiators should be operating per the model (and that’s also how they operate the building in real life, as well).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve seen the folks on this board provide some excellent advice and insight to other posters, so I hope you can do the same for me here! I’d appreciate if anyone can provide some insight as to why they think the fin tube radiators are showing
0 between 1 AM and 6 AM but seem to operate fine during the rest of the day. If you have any questions about the model or need more information, I am more than happy to oblige.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Scott Burger BEAP
</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">| Energy Engineer |
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="mailto:scott.burger@arcadis.com"><span style="color:#7FBDCF">scott.burger@arcadis.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Arcadis
<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">T. +1 518 250 7261 | F. 518 371 2757<o:p></o:p></span></p>
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<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#C3D200">Be green, leave it on the screen.
<o:p></o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
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