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<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2>Robby,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2>If your project is seeking LEED certification and you want
to claim credit for the Natural Ventilation under EA-1, I reccomend that you get
the book "Natural ventilation in non-domestic buildings" published by the CIBSE
and the Carbon Trust. USGBC requires a rigourous analysis of your
natural ventilation modeling results before granting any EA-1 credit and
this reference will help you navigate that. You should also read the CIR
regarding natural ventilation energy savings on the USGBC
website.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2> </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2>Mike</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008>
<DIV align=left><FONT face="Arial Black" size=2>Michael Tillou, PE,
LEED</FONT></DIV>
<DIV align=left><FONT face="Arial Black" size=2>Tillou Engineering,
LLC</FONT></DIV>
<DIV align=left><FONT face="Arial Black" size=1>Williamstown, MA
01267</FONT></DIV>
<DIV align=left><FONT face="Arial Black" size=1>P:
413-458-9870</FONT> <FONT face="Arial Black" size=1>C:
413-652-1087</FONT></DIV></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=078324919-02012008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
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color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Robby
Oylear<BR><B>Sent:</B> Wednesday, January 02, 2008 1:28 PM<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> [Bldg-sim] Mixed Mode
Ventilation in eQUEST<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi all,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I’m working on an energy model for a
project that is very interested in incorporating a mixed mode ventilation
scheme. The mixed mode would operate in an on/off red light green light
method where the mechanical cooling would shut down during hours when the
outdoor air temperature could meet the space cooling loads and the mechanical
system would run its relief fan in order to pull air into the space. It
would be up to the occupants to open the operable windows.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I’ve been through the basic options
for natural ventilation in eQUEST and it doesn’t look like what’s available in
eQUEST is going to work for the PIU system I have in the building right now. I’m
thinking it will have to involve some sort of schedule modification to turn off
the perimeter VAV box fans during hours when the loads could be met by the
natural ventilation. I could make the schedule based on BIN calc
information for <st1:City w:st="on"><st1:place
w:st="on">Seattle</st1:place></st1:City>. This would involve a lot of fine
tuning though and it would be questionable whether I could still keep the unmet
load hours under 300. To simulate the operable windows modifications could
be made to the infiltration values at the perimeter
spaces.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If anyone has had any success with
mixed mode ventilation or has any ideas towards this it would be much
appreciated.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Franklin Gothic Demi" size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Franklin Gothic Demi'">Robby
Oylear</SPAN></FONT><FONT face="Franklin Gothic Demi" size=2><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 'Franklin Gothic Demi'"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><I><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-STYLE: italic">Project
Engineer<o:p></o:p></SPAN></FONT></I></P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 10pt">direct: 206.788.4571<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 10pt">cell: 206.354.2721</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal style="MARGIN-BOTTOM: 3pt"><FONT face=Arial size=1><SPAN
style="FONT-SIZE: 8pt; FONT-FAMILY: Arial"><A
title=blocked::http://www.rushingco.com/ href="http://www.rushingco.com/"><FONT
color=black><SPAN style="COLOR: windowtext; TEXT-DECORATION: none"><SPAN
title=blocked::http://www.rushingco.com/>www.rushingco.com</SPAN></SPAN></FONT></A><o:p></o:p></SPAN></FONT></P>
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