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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Varkie,<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'>You need the water economizer –<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'>"water economizer" = CHILLER <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> TYPE = WATER-ECONOMIZER<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> CHW-LOOP = "Chilled Water Loop"<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> CHW-PUMP = "WE pump"<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> CW-LOOP = "Condenser Water Loop" ..<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'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>And a pump attached to the water economizer –<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'>"WE pump" = PUMP <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> CAP-CTRL = VAR-SPEED-PUMP<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'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Along with the chilled water loop and a condenser water loop.<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'>I think the problem you are facing may be due to the 42deg
temperature input.<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'>Hope this helps.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Amarpreet<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>
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<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"'> Varkie C Thomas
[mailto:thomasv@iit.edu] <br>
<b>Sent:</b> Monday, June 28, 2010 10:08 AM<br>
<b>To:</b> Varkie C Thomas<br>
<b>Cc:</b> Jonathan Smith; Sethi, Amarpreet; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Waterside Economizer<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>I am having
a hard time getting </span><span style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>Chiller Type = Waterside Economizer</span><span
style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'> to work in eQ. I received 2
messages recommending this as the solution. I have 2 more saying that they
have not been able to model WSE in eQ. Please let me know if it is not
supposed </span><span style='font-family:"Calibri","sans-serif"'>to work. <o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>Unlike
DOE2.1E this is the only minimum input required in eQ. In this project during
WSE operation we require a Clg-Twr leaving temp (Plate & Frame HX entering
temp) of 42F so that the CHW temp leaving the HX is 44F or 46F. The eQ default
is 85F. Even with this default and </span><span style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>Chiller Type = Waterside Economizer</span><span
style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'> I get the error message </span><span
style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>Condenser Water Loop has Zero Design
Flow</span><span style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>.</span><span style='font-family:
"Calibri","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>Unlike
DOE2.1E there is no way of attaching a schedule for WSE operation. I have
attached eQ input-output </span><span style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>Without-WSE-1</span><span
style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'> and </span><span style='font-family:
"Arial Unicode MS","sans-serif"'>�</span><span style='font-family:"Calibri","sans-serif"'>With-WSE-2</span><span
style='font-family:"Arial Unicode MS","sans-serif"'>�</span><span
style='font-family:"Calibri","sans-serif"'>; DOE2.1E definitions of WSE
commands and keywords; a sample DOE2.1E plant section input showing WSE; a
schematic of Plate & Frame HX; and my eQ input for WSE and the resulting
error message. The attached project</span><span style='font-family:"Calibri","sans-serif"'>
is dummy to test eQ for WSE.<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>Has anyone
modeled WSE with eQ? WSE works with DOE2.1E commands and keywords. Does
Waterside Economizer work with EnergyPlus (this project is also going to be
modeled with E+ using Design-Builder interface for building and systems), TRACE
or HAP</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>Varkie</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <span style='font-family:"Calibri","sans-serif"'><o:p></o:p></span></p>
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