<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:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"
xmlns:ns0="http://schemas.microsoft.com/office/2004/12/omml">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (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]--><o:SmartTagType
namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="PostalCode"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="State"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="address"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="City"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="place"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="PersonName"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--a:link
{mso-style-priority:99;}
span.MSOHYPERLINK
{mso-style-priority:99;}
a:visited
{mso-style-priority:99;}
span.MSOHYPERLINKFOLLOWED
{mso-style-priority:99;}
p.MSOACETATE
{mso-style-priority:99;}
li.MSOACETATE
{mso-style-priority:99;}
div.MSOACETATE
{mso-style-priority:99;}
span.BALLOONTEXTCHAR
{mso-style-priority:99;}
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 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:11.0pt;
font-family:Calibri;}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:Tahoma;}
span.BalloonTextChar
{font-family:Tahoma;}
span.EmailStyle19
{mso-style-type:personal;
font-family:Calibri;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</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=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I remember talking to James Hirsch about
the desiccant pre-conditioner software and he warned me that the software was
never officially verified as functional for all design conditions. I steered
clear of those subprograms after that and started experimenting with adding two
DOAs in series to simulate dehumidification control. I don’t know if that
solution is really any better, but it seemed to work, and at least used subprograms
I was sure functioned.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Bishop, Bill<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, December 13, 2013
8:38 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">equest-users@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Equest-users] Add-On
Desiccant for simulating passivedehumidification wheel?</span></font><font
size=3 face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Any
thoughts on using a System -> Preconditioner -> Add-On Desiccant for
modeling a passive dehumidification wheel in the configuration shown below?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>It
would be a workaround. One problem I see is the Add-On Desiccant doesn’t
interact with the return air. You would have to derate the total energy wheel
somehow, such as by reducing the effectiveness or decreasing the exhaust
airflow.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><img
width=460 height=290 id="Picture_x005f_x0020_1"
src="cid:image001.jpg@01CEF7E1.DC0C77F0"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Bill<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><b><font size=2
color=black face="Franklin Gothic Medium"><span style='font-size:10.0pt;
font-family:"Franklin Gothic Medium";color:black;font-weight:bold'>William</span></font></b></st1:City><b><font
size=2 color=black face="Franklin Gothic Medium"><span style='font-size:10.0pt;
font-family:"Franklin Gothic Medium";color:black;font-weight:bold'> <st1:State
w:st="on">Bishop</st1:State>, <st1:State w:st="on">PE</st1:State></span></font></b></st1:place><b><font
size=2 color=black face="Franklin Gothic Medium"><span style='font-size:10.0pt;
font-family:"Franklin Gothic Medium";color:black;font-weight:bold'>, BEMP,
BEAP, LEED AP </span></font></b><b><font size=2 color="#006600"
face="Franklin Gothic Medium"><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium";
color:#006600;font-weight:bold'>|</span></font></b><b><font size=2 color=black
face="Franklin Gothic Medium"><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium";
color:black;font-weight:bold'> Pathfinder Engineers & Architects LLP<o:p></o:p></span></font></b></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=522
style='width:391.85pt;border-collapse:collapse'>
<tr height=19 style='height:.2in'>
<td width=370 height=19 style='width:277.4pt;padding:0in 5.4pt 0in 5.4pt;
height:.2in'>
<p class=MsoNormal><b><font size=1 color=black face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:black;font-weight:bold'>Senior
Energy Engineer<o:p></o:p></span></font></b></p>
</td>
<td width=153 rowspan=6 style='width:114.45pt;padding:0in 5.4pt 0in 5.4pt;
height:.2in'>
<p class=MsoNormal><font size=1 color=black face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:black'><img width=123
height=83 id="Picture_x005f_x0020_7" src="cid:image002.jpg@01CEF7E1.DC0C77F0"
alt="webCertified_logo_colorRGB72DPI.jpg"><o:p></o:p></span></font></p>
</td>
</tr>
<tr height=7 style='height:4.9pt'>
<td width=370 height=7 valign=top style='width:277.4pt;padding:0in 5.4pt 0in 5.4pt;
height:4.9pt'>
<p class=MsoNormal><font size=1 color=black face=Arial><span
style='font-size:5.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
</td>
</tr>
<tr height=14 style='height:10.5pt'>
<td width=370 nowrap height=14 valign=bottom style='width:277.4pt;padding:
0in 5.4pt 0in 5.4pt;height:10.5pt'>
<p class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><font size=1
color="#1f497d" face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:#1F497D'>134 South Fitzhugh Street</span></font></st1:Street><font
size=1 color="#1f497d" face="Times New Roman"><span style='font-size:9.0pt;
font-family:"Times New Roman";color:#1F497D'>
</span></font><st1:City w:st="on"><font size=1 color="#1f497d" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#1F497D'>Rochester</span></font></st1:City><font
size=1 color="#1f497d" face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:#1F497D'>, <st1:State w:st="on">NY</st1:State> <st1:PostalCode
w:st="on">14608</st1:PostalCode></span></font></st1:address><font size=1
color="#1f497d" face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:#1F497D'><o:p></o:p></span></font></p>
</td>
</tr>
<tr height=18 style='height:13.3pt'>
<td width=370 height=18 valign=top style='width:277.4pt;padding:0in 5.4pt 0in 5.4pt;
height:13.3pt'>
<p class=MsoNormal><font size=1 color="#1f497d" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#1F497D'>T: (585) 325-6004 </span></font><font
size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black'>Ext. 114</span></font><font size=3 color="#1f497d"
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman";
color:#1F497D'>
</span></font><font size=1 color="#1f497d" face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:#1F497D'>F: (585) 325-6005</span></font><font
size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
</td>
</tr>
<tr height=14 style='height:10.5pt'>
<td width=370 height=14 valign=top style='width:277.4pt;padding:0in 5.4pt 0in 5.4pt;
height:10.5pt'>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><a
href="mailto:wbishop@pathfinder-ea.com"><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>bbishop@pathfinder-ea.com</span></font></a></span></font><font
size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black'> </span></font><a
href="http://www.pathfinder-ea.com/"><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>www.pathfinder-ea.com</span></font></a><font
size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
</td>
</tr>
<tr height=35 style='height:26.3pt'>
<td width=370 height=35 valign=top style='width:277.4pt;padding:0in 5.4pt 0in 5.4pt;
height:26.3pt'>
<p class=MsoNormal><font size=4 color=green face=Webdings><span
style='font-size:14.0pt;font-family:Webdings;color:green'>P</span></font><font
size=4 color=green face="Times New Roman"><span style='font-size:14.0pt;
font-family:"Times New Roman";color:green'> </span></font><font
size=1 color=green face="Times New Roman"><span style='font-size:7.5pt;
font-family:"Times New Roman";color:green'>Sustainability – the forest
AND the trees.</span></font><font size=5 color=green face=Webdings><span
style='font-size:18.0pt;font-family:Webdings;color:green'> </span></font><font
size=4 color=green face=Webdings><span style='font-size:14.0pt;font-family:
Webdings;color:green'>P</span></font><font size=4 color=green><span
style='font-size:14.0pt;color:green'> </span></font><font
size=4 color=green><span style='font-size:14.0pt;color:green'> </span></font><font
size=4 color=green face=Webdings><span style='font-size:14.0pt;font-family:
Webdings;color:green'> </span></font><font color="#1f497d"><span
style='color:#1F497D'><o:p></o:p></span></font></p>
</td>
</tr>
</table>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
</div>
</body>
</html>