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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>They are based on published data from one
of the major chiller manufacturers. While specific to that manufacturer, they
are believed to be representative of that class of chillers.<o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
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<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'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Demba Ndiaye<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, August 26, 2008
12:31 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Dan Nall; Kingsley,Michael L.;
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Variable
Speed Screw Chiller Curves</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Can you please share
with us the source of these curves?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#1F497D'>______________</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#1F497D'>Demba Ndiaye</span></font><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><o:p></o:p></span></font></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Dan Nall<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, August 26, 2008
3:17 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Kingsley,Michael L.;
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Variable
Speed Screw Chiller Curves<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:black'>Try these on for size;<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>"VFDSCrew EIR fPLR" = CURVE-FIT <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>TYPE = CUBIC<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>INPUT-TYPE = DATA<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>INDEPENDENT = ( 1, 0.75, 0.5, 0.25 )<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>DEPENDENT = ( 1, 0.97307, 1.01436, 1.3616 )<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>..<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>"Carrier-EIR-fCHWT&CWT" =
CURVE-FIT <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>TYPE = BI-QUADRATIC-T<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>INPUT-TYPE = COEFFICIENTS<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>COEFFICIENTS = ( 0.767051, -0.0236208,
0.0004375, 0.0024939, 0.0002337, <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>-0.000418 )<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>..<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>"Carrier-EIR-fPLR&dT" = CURVE-FIT <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>TYPE = BI-QUADRATIC-RATIO&DT<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>INPUT-TYPE = COEFFICIENTS<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>COEFFICIENTS = ( -0.0230025, 0.902964,
0.0935993, 0.00347819, <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>-2.45759e-005, -0.00196462 )<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>..<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>"Carrier-CAP-fCHWT&CWT" =
CURVE-FIT <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>TYPE = BI-QUADRATIC-T<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>INPUT-TYPE = COEFFICIENTS<o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>COEFFICIENTS = ( 0.448509, 0.0185587,
-0.00028125, 0.00306901, <o:p></o:p></span></font></p>
<p><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>-5.0201e-005, 0.000108475 )<o:p></o:p></span></font></p>
<p><font size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:black'><br>
<br>
<br>
<o:p></o:p></span></font></p>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:0in;margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=1 color=black
face=Arial><span style='font-size:9.0pt;font-family:Arial;color:black'>-----Original
Message----- <br>
From: "Kingsley, Michael L." <br>
Sent: Aug 26, 2008 2:15 PM <br>
To: bldg-sim@lists.onebuilding.org <br>
Subject: [Bldg-sim] Variable Speed Screw Chiller Curves <br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'>Does anyone have DOE-2 performance curves for a variable speed screw
chiller (I believe the Carrier Evergreen 23XRV is the only one now) that they
would be willing to share?</span></font><font color=black><span
style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'> </span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'>Thanks in advance.</span></font><font color=black><span
style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'> </span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Michael Kingsley<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'> <o:p></o:p></span></font></p>
</blockquote>
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