<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)">
<!--[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:"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;}
/* 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.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";}
p.section1, li.section1, div.section1
{mso-style-name:section1;
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";}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:windowtext;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
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 Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="2050" />
</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=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I had the same problem when I wanted to use a steam meter on a
DHW loop. The only thing I can think of is that the steam meter doesn’t account
for storage losses. It does seem like a suspiciously large difference, though.<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><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Kelsey Van Tassel</span><span style='color:#000066'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer | <a href="mailto:kvantassel@sustaineng.com">kvantassel@sustaineng.com</a></span><span
style='color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#000066'><img border=0 width=156
height=58 id="Picture_x0020_1" src="cid:image001.jpg@01CAE6C7.922A8160"
alt="cid:image001.jpg@01CAB071.D15FCCF0"><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>We've moved. Please see below for my new contact info. </span></b><span
style='color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>901 Deming Way, Ste. 201<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Madison, WI 53717<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>608.836.4488 ext. 20| Fax: 608.836.4477<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'> </span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:gray'>2009 Dane County Small Business Award Recipient</span></i><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#000066'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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>Kathryn
Kerns<br>
<b>Sent:</b> Wednesday, April 28, 2010 11:33 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Steam Meter Energy Usage Much Less Than Gas
Boiler Energy Usage<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Everyone,
I have a building in Fairbanks Alaska that uses hot water heat. I built an
energy model for it and included a gas, natural draft, 80% efficient boiler to
heat the hot water. I then deleted the gas hot water boiler and substituted a
steam meter. I repeated this process for the gas DHW heater. When I ran the
steam heat meter energy model, I noticed that the Heating Energy Consumption
was reduced by 38% compared to the gas energy model. Nothing else seemed to
change much, but the reduction of heating energy bothers me. I realize that a
steam to hot water heat exchanger is more efficient than a boiler, but why does
the amount of heating energy required drop so much? Shouldn’t the amount of
heat required be the same for both models? I have attached the Energy
Consumption reports for both models. Thanks.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><span
style='font-family:"Arial","sans-serif";color:black'>Kathryn Kerns</span></strong><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><span
style='font-size:11.0pt;font-family:"Arial","sans-serif";font-style:normal'>Systems
Specialist</span></b></em><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><span
style='font-variant:small-caps;color:teal;font-style:normal'>BCE</span></b></em><strong><span
style='font-size:10.0pt;font-variant:small-caps;color:teal'> </span><span
style='font-variant:small-caps;color:teal'>Engineers, Inc.<o:p></o:p></span></strong></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><span
style='font-size:9.0pt;color:black'>| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></strong><span
style='font-size:7.0pt;color:black'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</body>
</html>