<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 12 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Webdings;
panose-1:5 3 1 2 1 5 9 6 7 3;}
@font-face
{font-family:"Franklin Gothic Medium";
panose-1:2 11 6 3 2 1 2 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","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;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1097870102;
mso-list-type:hybrid;
mso-list-template-ids:374608608 -1168765622 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-start-at:0;
mso-level-number-format:bullet;
mso-level-text:-;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:.75in;
text-indent:-.25in;
font-family:"Calibri","sans-serif";
mso-fareast-font-family:Calibri;
mso-bidi-font-family:"Times New Roman";}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></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"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wahid,<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">It would be easier for others to look at your model if you also included the .pd2 file.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Based on your input file, you are modeling two ERVs and you are trying to use the “dummy space” method. I do not use this method (yet) but others may have suggestions
for you.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You are not going to get realistic results if I am interpreting your input file correctly:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Your two dummy spaces/zones have no occupants, equipment or lighting loads, or envelope loads (only OA)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You have specified zonal exhaust equal to the OA, which will simulate as no return air to the ERV<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bill<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:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black">William Bishop, PE, BEMP, BEAP, LEED AP
</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:#006600">|</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black"> Pathfinder Engineers & Architects LLP<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">Senior Energy Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:5.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">134 South Fitzhugh Street</span><span style="font-size:9.0pt;color:#1F497D">
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">Rochester, NY 14608<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">T: (585) 325-6004
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">Ext. 114</span><span style="color:#1F497D">
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">F: (585) 325-6005</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">bbishop@pathfinder-ea.com</span></a></span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="http://www.pathfinder-ea.com/"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">www.pathfinder-ea.com</span></a></span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:Webdings;color:green">P</span><span style="font-size:14.0pt;color:green">
</span><span style="font-size:7.5pt;color:green">Sustainability – the forest AND the trees.</span><span style="font-size:18.0pt;font-family:Webdings;color:green">
</span><span style="font-size:14.0pt;font-family:Webdings;color:green">P</span><span style="font-size:14.0pt;font-family:"Calibri","sans-serif";color:green"> </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>
<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>Wahid Hamed<br>
<b>Sent:</b> Monday, September 16, 2013 4:04 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] ERV + Evap Cooling Modeling in eQuest<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394">Dear All,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394"> </span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394">I am using eQuest to model an Hotel building in a very hot, dry climate zone which is has a great opportunity for energy saving when using evaporative cooling
in summer. I have modeled direct evaporative cooling for 100% outdoor air handling unit along with sensible recovery wheel to recover the exhaust air stream energy into the outdoor air.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394"> </span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394">When I run the model simulation and got into the "ERV Energy Recovery Summary" and "SUPL Evap/Desicant Cooling" reports, I could not interpretate the outputs to
understand if the system is working appropriately or not.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394"> </span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394">I wonder if anyone can help me and provide me with some guidance or example on ERV and Evap Cooling systems input and control setup as well as the system
output reports interpretation and what I need to do to get my model run correctly reflecting the real system operation and predicted saving.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial","sans-serif";color:#0B5394">- My model *.inp file is attached for your reference.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#0B5394"><br clear="all">
</span><o:p></o:p></p>
</div>
<div>
<div>
<p style="margin:0in;margin-bottom:.0001pt;background:white"><span style="font-family:"Arial","sans-serif";color:#0B5394">Regards,</span><span style="font-family:"Arial","sans-serif";color:#500050"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;background:white"><span style="font-family:"Arial","sans-serif";color:#500050"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="background:white"><span style="font-family:"Arial","sans-serif";color:#0B5394">Wahid H. Mohamed</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#000066">, </span><span style="font-size:6.0pt;font-family:"Arial","sans-serif";color:#999999">LEED
AP BD+C</span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#999999">Mechanical Project Engineer, Energy Modeler </span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#999999">Saudi Diyar Consultants</span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span style="font-family:"Arial","sans-serif";color:#999999"><a href="http://www.diyar.com" target="_blank"><span style="font-size:7.5pt">www.</span></a><a href="http://www.diyar.com" target="_blank"><span style="font-size:7.5pt">diyar.com</span></a> </span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
</div>
<p style="margin:0in;margin-bottom:.0001pt;background:white"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#999999"> (+966)-5467 6<b>22 67</b></span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</body>
</html>