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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Has anyone ever tried to model 2 DOAS units in series? I have
successfully modeled a single DOAS/multiple fan coil system, but I have never
tried to string two DOAS units together by feeding the supply air output of the
first DOAS into the outside air input of the second DOAS. The reason I ask is
that I am looking for a way to model a DOAS that has an ERV device located downstream
after a heating and a cooling coil. Does anyone know whether DOE-2 would
treat the system exhaust air coming back through the second DOAS ERV any
differently than the exhaust air going back through a single DOAS with an ERV
unit? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Assuming that this works, does anybody know how to add heat
to, or manually raise the temperature of, the ERV exhaust air? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am thinking if I can model a multiple DOAS with an
elevated exhaust temperature, I might be able to mimic a desiccant system. According
to James Hirsch in <st1:State w:st="on"><st1:place w:st="on">California</st1:place></st1:State>,
the energy balance used in the desiccant tabs is not correct and should not be
used, so I am out of luck there.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If anyone has another method for modeling a desiccant
system, I would love to hear from you.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Kathryn Kerns</span></font></b></strong><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=2 face=Arial><span style='font-size:11.0pt;font-family:Arial;font-weight:
bold;font-style:normal'>Systems Specialist</span></font></i></b></em><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=3 color=teal face="Times New Roman"><span style='font-size:12.0pt;
font-variant:small-caps;color:teal;font-weight:bold;font-style:normal'>BCE</span></font></i></b></em><strong><b><font
size=2 color=teal face="Times New Roman"><span style='font-size:10.0pt;
font-variant:small-caps;color:teal'> </span></font><font color=teal><span
style='font-variant:small-caps;color:teal'>Engineers, Inc.<o:p></o:p></span></font></b></strong></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=1 color=black face="Times New Roman"><span style='font-size:9.0pt;
color:black'>| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></font></b></strong><font
size=1 color=black><span style='font-size:7.0pt;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Arial><span style='font-size:
13.5pt;font-family:Arial;color:black'> <o:p></o:p></span></font></p>
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12.0pt'><o:p> </o:p></span></font></p>
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