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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:#002060'>Kathryn,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:#002060'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:#002060'>If you haven’t done this yet, try defining both the overheating
space and the atrium as sunspaces. (Internal Loads > Basic Specs >
Sunspace) This will naturally ventilate the spaces with outside air when
necessary to avoid overheating. I’m guessing the perimeter atrium is likely all
glass, so you can also check your hourly reports for Building Heating and
Cooling load from Solar Radiation through Windows to see if that is the culprit.
Either that or check for an accidently misplaced decimal in your internal equipment
loads… 20 W/sf rather than 2.0 W/sf or something like that. Hope this helps. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:#002060'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:#002060'>Cheers,<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>Kathryn Lee<br>
<b>Sent:</b> Sunday, December 19, 2010 10:43 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] eQuest- exponential cooling load<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p><span lang=EN-AU>Hi,<o:p></o:p></span></p>
<p><span lang=EN-AU>I am struggling to find the source of an error with an
eQuest model. In the latter part of the year the building sensible
cooling load grows exponentially.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU>This error seems to be associated with one
of the perimeter zones, and specifically one that is adjacent to an
atrium. For this zone the peak equipment load occurs at midnight on
December 31<sup>st</sup>, and is 1000x the setting for the space. Has
anyone seen a similar issue? <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU>Any suggestions would be most
welcome! We’re under a bit of a time crunch. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU>Thanks!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-family:"Times New Roman","serif";
color:#696EB4'>Kathryn Lee<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#595959'>Mechanical Engineer | Sydney Buildings ESD<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#595959'><o:p> </o:p></span></p>
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