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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Linda, <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'>Page 7 of the LEED document instructs you to “use a
virtual heating plant with the same seasonal heating efficiency of the entire
upstream DES heating system” and goes on to say that it is permissible to
model part load conditions. There is similar wording for the CHW plant. You
don’t need to use the actual capacities of the plants or the attached loads,
just the actual efficiencies (and an estimate of the part load curve possibly).
Which is much simpler than trying to account for everything else attached to
the plant.<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'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><i><span style='font-size:11.0pt;font-family:"BankGothic Md BT","sans-serif";
color:#1F497D'>Matt Dubrovich, </span></i></b><i><span style='font-size:11.0pt;
font-family:"BankGothic Md BT","sans-serif";color:#1F497D'>P.E.<o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"BankGothic Md BT","sans-serif";
color:#1F497D'>LEED AP</span><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:"BankGothic Md BT","sans-serif";
color:#1F497D'>Project Engineer</span><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'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>EMC Engineers, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.emcengineers.com/"><span style='color:blue'>www.emcengineers.com</span></a></span><u><span
style='color:blue'><o:p></o:p></span></u></p>
<p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:
5.0pt;margin-left:0in'><b><span style='font-size:11.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Making buildings work. </span></b><b><span style='font-size:
11.0pt;font-family:"Arial","sans-serif";color:red'>Better.</span></b><b><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(303) 974-1200<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(303) 974-1217 - direct<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(303) 974-1239 (fax)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:
5.0pt;margin-left:0in'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Confidentiality Notice: This message and any materials attached
are confidential, and are intended solely for the use of the addressee. If you
are not the intended recipient, be advised that unauthorized use, disclosure,
copying, or distribution is strictly prohibited. If you received this message
in error please notify the sender and destroy your copy immediately. </span><span
style='font-size:10.0pt;color:#1F497D'><o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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>Lam, Linda<br>
<b>Sent:</b> Wednesday, February 04, 2009 9:19 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] District Heating and District Cooling<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>All,</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
am trying to model a building that will have chilled water and hot water
supplied by a Central Utility Plant. According to the attached
"Required Treatment of District Thermal Energy in LEED-NC version 2.2 (May
28,2008)", there will be 4 models required. The first set of 2 with
purchased CHW and HW. The second set of 2 with the entire CUP modeled in the
Proposed case and a boiler/chiller plant autosized for the
Baseline case. </span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>If
that reasoning is correct, then how do I account for the energy used by the
other buildings using the CUP? Do I add it on as Process Energy on my
Chilled Water and Hot Water loops? How do I calculate the load on the
Condenser Water loop? What if I don't know what the loads in the other
buildings are?</span><o:p></o:p></p>
</div>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thank
you in advance!</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Linda</span><o:p></o:p></p>
</div>
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