<html><div style='background-color:'><P>Suneel,</P>
<P>What purpose do you need to factor the stratification? If you need to check space temperatures, you should look at Eplus or CFD. If you just need to reduce the volume of conditioned air, you can use eQuest.</P>
<P>Thanks,<BR></P>
<DIV>
<P>Vaibhav Potnis <BR>Green Building Services</P>
<P>Contact - 503-715-6113<BR><A href="mailto:vaipotnis@hotmail.com">vaipotnis@hotmail.com</A></P>
<P><A href="http://www.greenbuildingservices.com">www.greenbuildingservices.com</A></P>
<P> </P></DIV>
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From: <I>"Joe Huang" <yjhuang@lbl.gov></I><BR>Reply-To: <I>yjhuang@lbl.gov</I><BR>To: <I><BLDG-SIM@gard.com></I><BR>Subject: <I>[BLDG-SIM] Heat Stratification model in eQuest</I><BR>Date: <I>Thu, 25 Aug 2005 11:44:03 -0700</I><BR><BR>
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<DIV><FONT face=Arial size=2>Vikram, others,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>EnergyPlus models displacement ventilation or other underfloor systems with significant temperature stratification with a two-node room model developed by Paul Linden and others at UCSD, and Phil Haves at LBNL.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Joe</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
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<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=VSami@lasarchitect.com href="mailto:VSami@lasarchitect.com">Vikram Sami</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=BLDG-SIM@gard.com href="mailto:BLDG-SIM@gard.com">BLDG-SIM@gard.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 25, 2005 7:11 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [BLDG-SIM] Heat Stratification model in eQuest</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2>Suneel,</FONT></SPAN></DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2>As far as I know, you cannot model stratification in eQUEST. There is a workaround with modelling underfloor systems (Dan Nall & Marlin Addison have done some work in this area - check the link here, or just google their names)</FONT></SPAN></DIV>
<DIV><SPAN class=978050414-25082005>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2><A href="http://www.doe2.com/Download/Docs/Addison-Nall_UnderfloorAirDistPaper_Rev1.pdf">http://www.doe2.com/Download/Docs/Addison-Nall_UnderfloorAirDistPaper_Rev1.pdf</A></FONT></SPAN></DIV></SPAN></DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2>I am not sure that this is what you are looking for though. If you are modelling only stratification, you probably want to use CFD.</FONT></SPAN></DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2>I am not familiar with Energy Plus, so I dont know if it does stratification modelling, but that might be an option thats cheaper than cfd.</FONT></SPAN></DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005><FONT face=Arial color=#0000ff size=2><A href="http://www.doe2.com/Download/Docs/Addison-Nall_UnderfloorAirDistPaper_Rev1.pdf"></A></FONT></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005></SPAN> </DIV>
<DIV><SPAN class=978050414-25082005></SPAN><FONT face=Garamond><STRONG>Vikram Sami,</STRONG> LEED AP</FONT><B></B> <BR><FONT face=Garamond>Direct Phone 404-253-1466 | Direct Fax 404-253-1366</FONT> </DIV>
<P><B><FONT face=Garamond color=#800000>L</FONT><FONT face=Garamond color=#800000 size=2>ORD</FONT><FONT face=Garamond color=#800000>, A</FONT><FONT face=Garamond color=#800000 size=2>ECK</FONT><FONT face=Garamond color=#800000> & S</FONT><FONT face=Garamond color=#800000 size=2>ARGENT</FONT><FONT face=Garamond color=#800000> A</FONT><FONT face=Garamond color=#800000 size=2>RCHITECTURE</FONT><BR></B><FONT face=Garamond size=2>Responsive Design</FONT> <FONT face=Symbol size=1>·<FONT face="Courier New"></FONT></FONT> <FONT face=Garamond size=2>Technological Expertise</FONT> <FONT face=Symbol size=1>·<FONT face="Courier New"></FONT></FONT> <FONT face=Garamond size=2>Exceptional Service</FONT> <BR><FONT face=Garamond color=#000000>www.lordaecksargent.com</FONT> </P>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> BLDG-SIM@gard.com [mailto:BLDG-SIM@gard.com]<B>On Behalf Of </B>Suneel Gupta<BR><B>Sent:</B> Thursday, August 25, 2005 8:17 AM<BR><B>To:</B> BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] Heat Stratification model in eQuest<BR><BR></FONT></DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2>I am modeling energy use within an airplane hanger. </FONT></SPAN></DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2>Does anyone have any experience/recommendations on how to model the heat stratification within the building space using eQuest?</FONT></SPAN></DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2>Apologies if this is a repeat question.</FONT></SPAN></DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=208511212-25082005><FONT face=Arial size=2>Suneel Gupta</FONT></SPAN></DIV><PRE>==================
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