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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>I am
having an issue with modeling the required pump efficiencies per ASHRAE 90.1. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>For
Chilled Water Pumps, ASHRAE 90.1 states “The baseline building design
pump power shall be 22 w/gpm.” eQUEST asks for motor efficiency and mech
efficiency (mechanical efficiency of the pump impeller). The heating water
pumps require 19 w/gpm. The following is a screen shot of eQUEST’s pump
properties:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><img
width=726 height=544 id="_x0000_i1025" src="cid:image001.png@01CA1B65.A696D4B0"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>ASHRAE
90.1 only gives the watts per gpm, do I run the simulation and calculate the
“pump power” (kW) by multiplying the given watts/gpm by the modeled
gpm and put the mechanical and motor efficiency to 1.0?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>Thanks
for any help and ideas,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>Otto
Schwieterman</span></font><o:p></o:p></p>
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