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<DIV dir=ltr align=left><SPAN class=062272312-09022009><FONT face=Arial
color=#0000ff size=2>Dear Andy and Eric,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=062272312-09022009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=062272312-09022009><FONT face=Arial
color=#0000ff size=2>My past experience with industrial buildings
(manufacturing, assembly, warehouses, etc) indicates that a good building has an
AVERAGE winter AC/hr of ~0.2. Poor buildings are on the order of 0.5 (or
more!) </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=062272312-09022009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=062272312-09022009><FONT face=Arial
color=#0000ff size=2>This doesn't address residences (which often have much
higher infiltration rates) offices or high rises, but it may be helpful.
Most of the literature I'm familiar with indicates that infiltration is normally
a lot higher than is generally assumed. My experience confirms
that.</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV class=Section1>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><B
style="mso-bidi-font-weight: normal"><FONT size=4>The Building Performance
Team<BR></FONT></B><B style="mso-bidi-font-weight: normal">James V. Dirkes II,
P.E., LEED AP<BR></B>1631 Acacia Drive NW<BR>Grand Rapids, MI 49504<BR>616
450 8653<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV> </DIV><BR>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<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>Eric
Studer<BR><B>Sent:</B> Monday, February 09, 2009 6:42 AM<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] Infiltration
Schedule<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I tend to model an
air exchange rate of 0.15 ACH in perimeter spaces during unoccupied hours
(e.g. outside air fans are off with dampers closed) for new buildings (even if
they have air barriers). Vestibules, conditioned loading docks, etc
usually get higher air change rates. Zones with no exterior exposure
should not be modeled as having any infiltration since there is not a way for
air at outside conditions to make it to these zones. I assume no
infiltration into plenum zones. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I am curious to know
whether or not this seems reasonable based on real world experience.
Andy, any thoughts?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Eric<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy">Ph: (781) 431-1100 ext
12<BR>Fax: (781) 431-1109</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: navy"> </SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Andy hoover<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, February 06, 2009 5:07
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> 'Talbert, Joshua';
bldg-sim@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Bldg-sim] Infiltration
Schedule</SPAN></FONT><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hi
all:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">We do building
envelope consulting and are very curious as to what folks do and what rates
they use whatever approach. When looking at buildings we find that most
infiltrate much more in the real world than designers estimate and that
the fluctuations are far greater than predicted. We would also love it
if anyone has any experiences which can be
shared.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Andy
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Andy
Hoover</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Principal<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The BEST Consultant,
Inc.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Office:
678-200-7648<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Fax:678-827-0574<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Cell:
678-793-1159<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: navy"><A
href="http://www.thebestconsultant.com">www.thebestconsultant.com</A></SPAN></FONT><FONT
face="Times New Roman" color=navy size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: navy; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></P>
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face=Calibri color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy">
<HR align=center width="100%" SIZE=3>
</SPAN></FONT></DIV>
<P><FONT face=Arial color=gray size=1><SPAN
style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">This message may
contain confidential and/or privileged information. If you are not the
addressee or authorized to receive this information for the addressee, you
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information herein. If you have received this message in error, please advise
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style="FONT-SIZE: 10pt"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN
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<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Talbert, Joshua<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, February 06, 2009 10:30
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
bldg-sim@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Bldg-sim] Infiltration
Schedule</SPAN></FONT><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">Howdy Bldg Sim peers!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">While working on LEED Equest simulations I find that
in an effort to simplify I end up deleting the P-Inf and C-Inf Infiltration
Schedules all of the time and end just use "<I><SPAN
style="FONT-STYLE: italic">undefined"</SPAN></I> to simulate a constant
infiltration rate. I was curious to know if anyone uses the actual
Infiltrations schedules, to emulate winds and or building pressurization, and
if so do you typically achieve more energy savings, and do you find it worth
the extra effort?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">Thanks all and be well.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">Josh<o:p></o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Papyrus color=#003366 size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: #003366; FONT-FAMILY: Papyrus">Joshua W.
Talbert </SPAN></FONT><FONT face="Times New Roman" color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: 'Times New Roman'">P.E.,
LEED-AP</SPAN></FONT><FONT face=Papyrus color=#003366 size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: #003366; FONT-FAMILY: Papyrus"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Papyrus color=#003366 size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: #003366; FONT-FAMILY: Papyrus">Mechanical
Engineer<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=#003366 size=5><SPAN
style="FONT-SIZE: 16pt; COLOR: #003366; FONT-FAMILY: Arial">Hallam</SPAN></FONT><B><FONT
face="Arial Black" color=#cc3300 size=5><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 16pt; COLOR: #cc3300; FONT-FAMILY: 'Arial Black'; POSITION: relative; TOP: -1pt; mso-text-raise: 1.0pt">///</SPAN></FONT></B><FONT
face=Arial color=#003366 size=5><SPAN
style="FONT-SIZE: 16pt; COLOR: #003366; FONT-FAMILY: Arial">ICS<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><FONT
face=Arial color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial">38 Eastwood Dr.
Suite 200</SPAN></FONT></st1:address></st1:Street><FONT face=Arial
color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><FONT face=Arial
color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial">S.
Burlington</SPAN></FONT></st1:City><FONT face=Arial color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial">, <st1:State
w:st="on">VT</st1:State> <st1:PostalCode
w:st="on">05403</st1:PostalCode></SPAN></FONT></st1:place><FONT face=Arial
color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial">P: (802)
658-4891<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=#003366 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Arial">F: (802)
658-1457<o:p></o:p></SPAN></FONT></P>
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