<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:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@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:"Arial Narrow";
panose-1:2 11 5 6 2 2 2 3 2 4;}
@font-face
{font-family:Webdings;
panose-1:5 3 1 2 1 5 9 6 7 3;}
/* 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.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Arial","sans-serif";
color:blue;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@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><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>My guess is that lighting reduction EEM works only during day time
and has hardly any or no effect during when the occupants are sleeping
(obviously depends on the lighting schedules). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Infiltration (again depending on the schedules) works all
throughout the day. And specially results in gas savings during night time when
the outside air is cold. However, it does have some effect during day time as
well.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>It seems that in the combo case during the day time, the reduced OA
(due to infiltration) is offsetting the penalty in the space heating due to
reduced LPD.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>To explain it further:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>In the reduced infiltration case the savings in heating energy during
the day time do not show up because the excessive Lighting is taking care of it.
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>However, in the Combo case the reduced infiltration shows even more
savings and surpasses the penalty in heating energy due to reduced lighting because
the OA load during the day time is larger than the penalty. And when the OA is
reduced during the day time as well as the night time, larger savings are seen.
Does that make sense? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><o:p> </o:p></span></p>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>Gaurav Mehta, LEED® AP BD+C</span></b><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:black'><br>
Sustainable Building Analyst<br>
Stantec<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:gray'>1932 First Avenue Suite 307<br>
Seattle WA 98101<br>
Ph: (206) 770-7779<br>
Fx: (206) 770-5941<br>
<a href="mailto:Gaurav.Mehta@stantec.com">Gaurav.Mehta@stantec.com</a><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><a href="http://www.stantec.com"><b><span style='font-size:
13.0pt;font-family:"Arial Narrow","sans-serif";color:#993333;text-decoration:
none'>stantec</span></b><span style='font-size:13.0pt;font-family:"Arial Narrow","sans-serif";
color:#003F6E;text-decoration:none'>.com</span></a><span style='font-size:13.0pt;
font-family:"Arial Narrow","sans-serif";color:blue'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>The content of this email is the confidential property of Stantec
and should not be copied, modified, retransmitted, or used for any purpose except
with Stantec's written authorization. If you are not the intended recipient,
please delete all copies and notify us immediately.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:Webdings;
color:#008040'>ü</span><span style='color:blue'> </span><span
style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:#008040'>Please
consider the environment before printing this email.</span><span
style='color:blue'> <o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'> </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><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"'> <a
href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
<a href="mailto:[mailto:bldg-sim-bounces@lists.onebuilding.org]">[mailto:bldg-sim-bounces@lists.onebuilding.org]</a>
<b>On Behalf Of </b>John Aulbach<br>
<b>Sent:</b> Tuesday, November 09, 2010 10:36 AM<br>
<b>To:</b> <a href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> [Bldg-sim] Really quick question<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p>I am doing EEM modeling, with both gas and electric effects on a multi
family unit in Los Angeles.<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>One EEM is a lighting reduction. Another is weather stripping, which reduces
infiltration.<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>I add up the EEMs individually and get a gas savings (negative from the
lighting reduction obviously). I add them together in a COMBO run (where they
interact) and the gas savings goes UP !!<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>WHY !!!!<o:p></o:p></p>
<p> <o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>John
R. Aulbach, PE, CEM<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Senior
Energy Engineer<o:p></o:p></span></p>
<div>
<div>
<div class=MsoNormal><span style='font-family:"Calibri","sans-serif";
color:#17365D'>
<hr size=2 width="30%" noshade style='color:#17365D' align=left>
</span></div>
</div>
</div>
<p class=MsoNormal><b><span style='font-family:"Calibri","sans-serif";
font-variant:small-caps;color:navy'>Partner</span></b><b><span
style='font-family:"Calibri","sans-serif";font-variant:small-caps;color:green'>
</span></b><b><span style='font-family:"Calibri","sans-serif";font-variant:
small-caps;color:#006600'>Energy</span></b><b><span style='font-family:"Calibri","sans-serif";
font-variant:small-caps;color:navy'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>1990
E. Grand Avenue, El Segundo, CA 90245<br>
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745<o:p></o:p></span></p>
<p class=MsoNormal><a href="http://www.ptrenergy.com/"><span style='font-family:
"Calibri","sans-serif"'>www.ptrenergy.com</span></a><span style='font-family:
"Calibri","sans-serif";color:#1F497D'> </span><a
href="mailto:%7C%20jaulbach@ptrenergy.com"><span style='font-family:"Calibri","sans-serif"'>|
jaulbach@ptrenergy.com</span></a><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p> <o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</body>
</html>