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<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>Dear
all,</FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>has anyone ever
tried to do a LEED energy modeling using the software IES
VE?</FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>I am modelling the
baseline building with it (with the ApacheHVAC module) and I don't know how to
input the part-load performance of the supply fan for a system 8 (VAV with
reheat).</FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>I cannot simply
input the coefficients given in table G3.1.3.15 of ASHRAE 90.1 for
part-load ratio and fraction of full-load power as IES VE requires to
define the fan curve with flow, pressure and efficiency for each
point. </FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>I tried with a fixed
pressure and applying the relation Power=(Flow x Pressure)/Efficiency, but this
is not correct because the pressure also varies! So I have 2 unknown quantities
and only 1 equation!</FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>How can I work out
the pressure and efficiency for each point in the curve given the flow at each
point, the full-load power of the fan and table G3.1.3.15? </FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT face=Agenda-Light>Has anyone ever had
this problem before?</FONT></SPAN></DIV>
<DIV><SPAN class=295230513-07102008><FONT
face=Agenda-Light></FONT></SPAN> </DIV>
<DIV><FONT face=Agenda-Light></FONT> </DIV>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; TEXT-ALIGN: left" align=left>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; TEXT-ALIGN: left">ELENA VERANI
<DIV style="FONT-SIZE: 10pt; COLOR: #808080">Sustainability Consultant</DIV>
<DIV style="FONT-SIZE: 10pt; COLOR: #ce0000">HILSON MORAN</DIV>
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