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<p class="MsoNormal"><span style="color:#1F497D">This is the methodology I typically use, but I have been playing with the idea of separate charge and discharges loops, with an availability schedule on the charge loop. The only caveat to this is the need for
a dummy coil to be placed on the charge loop, otherwise that loop won’t flow. I can’t remember if I was happy with this or not, but have predominantly used what Otto illustrated.<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">Either way I would suggest verifying with
<b><u>hourly reports</u></b> and tweaking the FLAG schedule to make sure the hourly wiggles the way you 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">Matthew Higgins, CEM, HBDP, LEED-AP (BD+C)<i>
<o:p></o:p></i></span></p>
<p class="MsoNormal"><i><span style="color:#1F497D">Energy Project Manager</span></i><b><i><span style="font-size:10.0pt;color:#1F497D"><o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif";color:#0F0F65"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif";color:#0F0F65">Bridgers & Paxton Consulting Engineers, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F0F65">4600-C Montgomery Blvd. NE<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F0F65">Albuquerque, NM 87109<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F0F65">505-883-4111<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F0F65">505-888-1436 Fax<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#002060">mwhiggins@bpce.com <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="color:#4F81BD">www.bpce.com<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="color:#1F497D"><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"><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-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Otto Schwieterman<br>
<b>Sent:</b> Thursday, March 08, 2012 2:45 PM<br>
<b>To:</b> Jiao, Joey; Equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Thermal Storage Control<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Joey,<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">When I model thermal storage, I typically set up equipment controls to control when the Ice tank will be charging and discharging. In the discharge sequence, if you set the chiller to sequence 2, the ice storage
tank will be discharged first. At the bottom of the equipment controls screen, you can input the correct thermal storage information.<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">After I create the equipment controls, I typically create a load management for the cooling equipment which tells the equipment when to charge and when to discharge. You will have to create a FLAG schedule for
the load management equipment control.<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">If anyone has a better or more detailed technique of modeling thermal storage please add to the conversation.
<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"><img width="319" height="238" id="Picture_x0020_3" src="cid:image001.jpg@01CCFD3F.7E658090"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="320" height="239" id="Picture_x0020_13" src="cid:image002.jpg@01CCFD3F.7E658090"><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"><img width="325" height="243" id="Picture_x0020_8" src="cid:image003.jpg@01CCFD3F.7E658090"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><img width="332" height="248" id="Picture_x0020_23" src="cid:image005.jpg@01CCFD3F.7E658090"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="338" height="252" id="Picture_x0020_28" src="cid:image006.jpg@01CCFD3F.7E658090"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="339" height="253" id="Picture_x0020_33" src="cid:image007.jpg@01CCFD3F.7E658090"><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:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Jiao, Joey [<a href="mailto:Joey.Jiao@WSPGroup.com.cn">mailto:Joey.Jiao@WSPGroup.com.cn</a>]
<br>
<b>Sent:</b> Thursday, March 08, 2012 6:04 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] Thermal Storage Control<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi, everyone :<o:p></o:p></p>
<p class="MsoNormal">When I finished a thermal storage system, I found the thermal Storage can’t be control by “Equipment control” list. Like the illustration below, the list only content Chillers on the loops.
<o:p></o:p></p>
<p class="MsoNormal">What I want is to make sure the Thermal Storage energy should be used by control, at most of the cases it should be used first, but on the warmest day , It should be used at 3~5PM to prevent the main chiller can’t deal with the cooling
load.<o:p></o:p></p>
<p class="MsoNormal">Who can take some light on this ? Any suggestion should be appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you very much.<o:p></o:p></p>
<p class="MsoNormal">Joey.<o:p></o:p></p>
<p class="MsoNormal"><img border="0" width="495" height="383" id="_x56fe__x7247__x0020_1" src="cid:image008.jpg@01CCFD3F.7E658090"><img border="0" width="327" height="380" id="_x56fe__x7247__x0020_3" src="cid:image009.jpg@01CCFD3F.7E658090"><o:p></o:p></p>
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