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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don't believe EE4's IPLV input does anything other than
generate a warning message if you don't meet minimum efficiency. Also
there is no corresponding DOE input for IPLV. To take advantage of better
part load performance you'll have to edit the EIR-FPLR (electric input ratio as
a function of the part load ratio) curve fit in DOE. See appendix A of
the EE4 modelling guide for the EE4/DOE default curves.<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>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hope this helps,</span><span style='font-size:11.0pt;font-family:
"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Kyle<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Brian Tysoe<br>
<b>Sent:</b> Monday, December 20, 2010 11:54 AM<br>
<b>To:</b> 'bldg-sim@lists.onebuilding.org'<br>
<b>Subject:</b> [Bldg-sim] VFD Chiller in EE4<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Is
there a way to take credit for using a VFD compressor on a chiller in EE4?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>EE4
lets you define the chiller type, efficiency (COP), IPLV and capacity.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>My
VFD chiller has roughly the same COP at peak operation as my non-VFD chiller;
however, the IPLV is much better because the performance at part load is more
efficient. However, varying the IPLV of the chiller in EE4 does not appear to
have any impact on the results whatsoever. Varying the COP affects things; however,
varying the IPLV does not.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><strong><span lang=EN-US style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:#4D4D4D'>Brian Tysoe </span></strong><span
lang=EN-US style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>M.A.Sc.,
P.Eng., LEED AP </span><span lang=EN-US style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><i><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>Mechanical Engineer </span></i><span lang=EN-US
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><a href="http://www.mcw.com"
title="Click here to visit www.mcw.com"><em><b><span style='font-family:"Arial","sans-serif";
color:green;text-decoration:none'>MCW Consultants Ltd. </span></b></em></a><o:p></o:p></span></p>
<p class=MsoNormal><em><span lang=EN-US style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:#4D4D4D'>600-156 Front Street West </span></em><i><span
lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'><br>
<em><span style='font-family:"Arial","sans-serif"'>Toronto, ON M5J 2L6 </span></em><br>
<em><span style='font-family:"Arial","sans-serif"'>Phone 416-598-2920 </span></em><br>
<em><span style='font-family:"Arial","sans-serif"'>Fax 416-598-5394 </span></em></span></i><span
lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
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color:black'> <o:p></o:p></span></p>
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contact the sender directly. </span></i><span lang=EN-US style='font-size:8.0pt;
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