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<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Apologies for posting twice in a day.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">’</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">m currently modeling a building (in eQUEST</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">) and I have run into a curious condition (counterintuitive). The designed system is a centrifugal chiller with a cooling</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> tower attachment. The designed KW/Ton is 0.619, which in EER terms is about 19.3.</FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">However, when I model the same building, but swap out the chiller for a less efficient (9EER) air cooled chiller, the cooling energy goes way down</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> (I am still meeting my loads).</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">The weather file is Atlanta.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">So I have a few questions:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">1. </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Is 0.619 just not very efficient for a water cooled chiller?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">2. </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Does it make sense that the cooling tower adds a huge amount of energy to the building?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">3. </FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Is Atlanta</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">’</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">s humid climate not a very good place for cooling towers</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">4. </FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Is this simply a case of operator error?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">’</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">d appreciate any input here.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Thanks</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
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