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<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2>You are correct that Appendix G requires outside air to be
the same for both as-designed and baseline models. You would not be able
to claim savings for reduced ventilation airflow from a more efficient fume
hood. Similarly you cannot claim credit for reduced ventilation
airflow on displacement ventilation and UFAD systems. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2>However I see no reason why you wouldn't be able to claim
the fan energy savings associated with a more efficient fume
hood.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2>Mike</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593274719-07112008>
<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 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>Bishop,
Bill<BR><B>Sent:</B> Friday, November 07, 2008 9:04 AM<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> [Bldg-sim] Exhaust, outside
air and infiltration for LEED<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">The mechanical engineer for a campus
laboratory building with 100% OA wants to claim energy savings for reduced
exhaust from more efficient fume hoods. (Established design practice uses hoods
with 100 fpm flow – they are installing 70 fpm hoods. This reduces peak exhaust
from 700 to 490 CFM per hood.) My approach has always been to keep outside air,
exhaust and infiltration flows identical between the proposed and baseline
models (except for DCV). (This was not easy for this model with proposed VAV and
baseline constant volume packaged rooftops.)<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">Has anybody successfully claimed
OA/exhaust/infiltration savings for a LEED project?<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">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Bill<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><B><FONT face="Franklin Gothic Medium" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium'">William
Bishop</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'">,
EIT, LEED<SUP>®</SUP> AP</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=#003300 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #003300; FONT-FAMILY: 'Franklin Gothic Medium Cond'">
</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=green
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: 'Franklin Gothic Medium Cond'">|</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=#003300 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #003300; FONT-FAMILY: 'Franklin Gothic Medium Cond'">
</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'">Pathfinder
Engineers LLP<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">Mechanical
Engineer<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 3pt; COLOR: black; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><FONT face=Arial
color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">3300 Monroe Ave., Suite
306</SPAN></FONT></st1:Street><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial"> <BR><st1:City
w:st="on">Rochester</st1:City>, <st1:State w:st="on">NY</st1:State>
<st1:PostalCode
w:st="on">14618</st1:PostalCode></SPAN></FONT></st1:address><FONT face=Arial
color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">TEL (585) 218-0730
Ext. 114<BR>FAX (585) 218-0737 <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">bbishop@pathfinderengineers.com<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 3pt; COLOR: black; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">www.pathfinderengineers.com<o:p></o:p></SPAN></FONT></P>
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color=green><SPAN style="COLOR: green"> </SPAN></FONT><FONT color=green
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environment before printing this email</SPAN></FONT><FONT color=green><SPAN
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