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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I was simulating the central plant for a hotel in eQuest. I
have a couple of questions on modeling the condenser water control.<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>
<ol style='margin-top:0in' start=1 type=1>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I was trying to model
free-cooling plate-to-frame heat exchanger between CW & CHW loops –
eQuest 3.55 doesn’t seem to handle this. Any suggestions?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>When I tried to add VFD on my
condenser water pumps, I get a bunch of warnings as shown below. I haven’t
used any custom curves for the pumps (though I used them for the chillers
being modeled – but I tried changing them to default and even then
the warnings wouldn’t go – not sure exactly what they mean –
any help would be greatly appreciated)<o:p></o:p></span></font></li>
</ol>
<p class=MsoNormal style='margin-left:.75in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>CURINV: No real root for CURVE: <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.75in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>1 1.353483 0.015932
-0.369414 0.000000 0.000000 0.000000<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'>Thank you,<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=1 face=Verdana><span style='font-size:
8.0pt;font-family:Verdana;font-weight:bold'>Sarathy Narasimhan</span></font></b><font
size=1 face=Verdana><span style='font-size:8.0pt;font-family:Verdana'><br>
<i><span style='font-style:italic'>Analyst, Energy Efficiency</span></i> <o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=1 face=Verdana><span style='font-size:
8.0pt;font-family:Verdana;font-weight:bold'>Energy and Power Solutions,
Inc.</span></font></b><font size=1 face=Verdana><span style='font-size:
8.0pt;font-family:Verdana'><br>
<a
href="http://maps.yahoo.com/py/maps.py?Pyt=Tmap&addr=150+Paularino+Avenue&csz=Costa+Mesa%2C+CA+92626&country=us"
target="_blank"><font color=black><span style='color:windowtext;text-decoration:
none'>150 Paularino Avenue Suite A120<br>
Costa Mesa, CA 92626</span></font></a><o:p></o:p></span></font></p>
</td>
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<p class=MsoNormal><font size=1 color="#4e81c4" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#4E81C4'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=1 face=Verdana><span style='font-size:8.0pt;
font-family:Verdana'><a href="mailto:sarathyn@energynpower.com"
target="_blank"><font color=black><span style='color:windowtext'>sarathyn@energynpower.com</span></font></a>
<o:p></o:p></span></font></p>
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