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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Are you trying to show compliance with the mandatory minimum mechanical equipment efficiency or are you trying to select the App. G or ECB baseline system and
efficiency?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">What fluid runs through the actual DX equipment condenser water or air? I suspect your dry coolers are still creating condenser water to cool the equipment,
in which case it is water-cooled.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Cory Duggin, PE, LEED AP BD+C, BEMP<o:p></o:p></span></b></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Principal/Energy Modeling Wizard<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">USGBC MidTN Branch Leadership Group Co-chair</span></i><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></i></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#006363">TLC Engineering for Architecture
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#333333">direct: </span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#555555"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">615-346-1939</span><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Bldg-sim [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Mayank Bhatnagar via Bldg-sim<br>
<b>Sent:</b> Monday, March 05, 2018 10:36 PM<br>
<b>To:</b> Javed Iqbal <javedvit@gmail.com><br>
<b>Cc:</b> Bldg-sim <bldg-sim@lists.onebuilding.org><br>
<b>Subject:</b> Re: [Bldg-sim] Expert advice to show minimum efficiency compliance Table 6.8.1C [1 Attachment]<o:p></o:p></span></p>
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<p class="MsoNormal">Hi Javed,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">In my opinion the air-cooled chiller efficiency should be used. As in the hybrid cooler (with water sprayer), the water spray is limited to only 200 hours in a year which is approximately 2-5% of the total hours in a year. So the worst
case scenario would be air-cooled chiller.<o:p></o:p></p>
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<p class="MsoNormal">Thanks.<o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222">Mayank Bhatnagar</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#006600">Senior Project Manager<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222"><br>
<b><span style="border:none windowtext 1.0pt;padding:0in">Environmental Design Solutions Pvt. Ltd. [EDS]</span></b><br>
D - 1/25 <br>
Vasant Vihar<br>
New Delhi - 110057<br>
India</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Mar 5, 2018 at 10:47 PM, Javed Iqbal via Bldg-sim <<a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Hello,</span><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:#073763"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:black;background:white"> I would appreciate your expert advice on selecting 90.1-2010 Baseline system to show minimum efficiency compliance as given under
<b><u>Table 6.8.1C</u></b>. One of the proposed project i am working on has two<u> <span class="m5310775448804871148m2465159858129261468m-230563553682319597gmail-il">Chillers</span></u></span><span style="font-family:"Arial",sans-serif"><o:p></o:p></span></p>
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<u><span style="font-family:"Arial",sans-serif;color:black">One with Std. Dry Coolers </span></u><span style="font-family:"Arial",sans-serif"><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1;background:white">
<span style="font-family:"Arial",sans-serif;color:black">Second chiller has special arrangement where the surrounding air of cooling tower being cooled (dry bulb) by some sort of misting to increase the dry cooler effectiveness during extreme outdoor condition
(CZ5A) ~ 80% lower water consumption compared to typical water cooled cooling tower. In this hybrid cooling tower, evaporation effect is happening but not like std. water cooled cooling tower. </span><o:p></o:p></li></ol>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:black"> To show minimum efficiency compliance,
<u>what condenser type do i need to choose</u>; Air or Water Cooled in both the Cooling tower type; Std Dry cooler and Hybrid Dry cooler (see image below)? Also find an attachment to have more info<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:#073763"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:black">on the product.<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><o:p> </o:p></p>
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<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:black">Thank you so much.<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:black">regards,<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span class="hoenzb"><span style="color:#888888">--
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888;background:white">Javed Iqbal, LEED AP, CEA</span><span style="font-size:10.0pt;color:#888888;background:#3333FF"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888;background:white">Sr. Energy Analyst </span><span style="font-size:10.0pt;color:#888888;background:#3333FF"><o:p></o:p></span></p>
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