<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Franklin Gothic Medium";
panose-1:2 11 6 3 2 1 2 2 2 4;}
@font-face
{font-family:"Trebuchet MS";
panose-1:2 11 6 3 2 2 2 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">All:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does anyone know (or have a handy reference or documentation ) for explaining how eQUEST handles determination of distribution losses for Supply and Return ductwork described as located in un-conditioned plenum spaces….? I feel comfortable
that I am understand eQUEST’s input requirements clearly, but when I stop to think about it, I am unclear on how the sequential behavior of (LOADS) and (SYSTEM/PLANT) modules handle the dynamic interaction introduced when a change to the model of a) reducing
duct leakage and/or b) insulating supply ductwork is introduced. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Along those lines – I’m unable to find any information in the ‘standard’’ output reports (using the D2SimViewer) to help me understand what is being reported for thermal conditions in an unconditioned plenum. Aside from creating custom
hourly report variable for the zone temperature, does anyone have any other ideas for retrieving this information?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Finally – it’s been my experience, from poking my head above plenty of ceiling tiles to confirm as-built drawings, that shooting a thermal image or two reveals that many commercial building HVAC systems do have supply and return ductwork
distribution systems that would benefit from repair of insulation, addition of mastic, and in some cases, reconnection! In many cases, a cheap fix, whose savings can help pay for other more costly improvements.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Has anyone else who has modeled similar improvements to ductwork systems located in un-conditioned areas experienced unexpected results?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All the Best,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">_Chris<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Trebuchet MS","sans-serif"">Chris Balbach, PE, CEM, BEMP, CMVP, BESA, BEAP</span><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">Vice President of Research and Development<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">Cell: (607)-327-1647<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:#639F42"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:#639F42">Performance Systems Development</span></b><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="color:black"><o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="245" style="width:183.75pt">
<tbody>
<tr style="height:3.75pt">
<td width="85" style="width:63.75pt;background:#639F42;padding:0in 0in 0in 0in;height:3.75pt">
</td>
<td width="65" style="width:48.75pt;background:#84D458;padding:0in 0in 0in 0in;height:3.75pt">
</td>
<td width="95" style="width:71.25pt;background:#B5E59B;padding:0in 0in 0in 0in;height:3.75pt">
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black">124 Brindley Street, Ithaca, NY 14850<br>
<a href="http://www.psdconsulting.com/"><span style="color:blue">www.psdconsulting.com</span></a></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div><span style="font-size: 10pt; ">--------------------------------------------------------------------------------------------------------------</span></div>
<div><span style="font-size: x-small;">Performance Systems Message Security: Click below to verify authenticity</span></div>
<div><span style="font-size: x-small;"><a href="http://http://www.exchangedefender.com/verify.asp?id=pATHtuIf025968&from=cbalbach@psdconsulting.com" title="Check Authenticity of this message here">http://www.exchangedefender.com/verify.asp?id=pATHtuIf025968&from=cbalbach@psdconsulting.com</a></span></div>
<div><span style="font-size: x-small;"><br>
</span></div>
<div><span style="font-weight: bold;"><span style="font-size: x-small;">CONFIDENTIAL</span></span></div>
<div><span style="font-size: x-small;">This message (including any attachments) is intended only for the use of the individual or entity to which it is addressed and may contain information that is non-public, proprietary, privileged, and/or confidential. If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Performance Systems Development.</span></div>
<div><span style="font-size: x-small;"><br>
</span></div>
<div><span style="font-size: x-small;">Please contact the sender if you believe that you have received this email in error and immediately delete this message.</span> </div>
<div><br>
</div><br /><br />
</body>
</html>