<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG>Jonathan and Glenn,</STRONG></SPAN></DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG></STRONG></SPAN> </DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG>Thanks a lot for your replies. However, the values I calculated by using return or mixing air wet bulb temperatures are still different to the number listed in the hourly report. </STRONG></SPAN></DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG></STRONG></SPAN> </DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG>Thanks</STRONG></SPAN></DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG></STRONG></SPAN> </DIV>
<DIV><SPAN style="COLOR: #4d4d4d; FONT-FAMILY: 'GillSans Light'"><STRONG>Shaojie</STRONG></SPAN></DIV>
<DIV><BR><BR>--- On <B>Fri, 2/13/09, Glenn Haynes <I><glenn.haynes@rlw.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">From: Glenn Haynes <glenn.haynes@rlw.com><BR>Subject: RE: [Bldg-sim] DX Cooling EIR Ratio Curve<BR>To: shaojieworld2006@yahoo.com<BR>Date: Friday, February 13, 2009, 3:08 PM<BR><BR>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The wet bulb temperature refers to that entering the evaporator, which is the return air wet bulb temperature.</SPAN></FONT></DIV>
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<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; 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>eric wang<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, February 13, 2009 1:48 PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> bldg-sim@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Bldg-sim] DX Cooling EIR Ratio Curve</SPAN></FONT></DIV></DIV>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Hi,</SPAN></FONT></DIV></DIV>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">I used the default DX Cooling EIR Ratio Curve (DX-Cool-Cap-fEWB&OAT) in eQUEST. The variables are t entering wetbulb and t enter condenser. I assume these refer to outside air wet and dry bulb temperatures. After exporting outside air wet and dry bulb temperatures in hourly report, the value of "Temp correction to COOLING-EIR" I calculated is different to the one in the hourly report by using the curve coefficients. Can anyone point out if my understanding is correct?</SPAN></FONT></DIV></DIV>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Thanks a lot for your help</SPAN></FONT></DIV></DIV>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Shaojie</SPAN></FONT></DIV></DIV></TD></TR></TBODY></TABLE>
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