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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>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 size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>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 size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Eric<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Calibri><span style='font-size:
10.0pt;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>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;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 size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi all:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>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 size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Andy <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Andy Hoover</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Principal<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The BEST Consultant, Inc.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Office: 678-200-7648<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Fax:678-827-0574<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Cell: 678-793-1159<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Calibri><span style='font-size:
11.0pt;color:navy'><a href="http://www.thebestconsultant.com">www.thebestconsultant.com</a></span></font><font
size=3 color=navy face="Times New Roman"><span style='font-size:12.0pt;
font-family:"Times New Roman";color:navy'><o:p></o:p></span></font></p>
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<p><font size=1 color=gray face=Arial><span style='font-size:7.5pt;font-family:
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;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 size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Howdy
Bldg Sim peers!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>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 size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Thanks
all and be well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Josh<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 color="#003366" face=Papyrus><span
style='font-size:12.0pt;font-family:Papyrus;color:#003366'>Joshua W. Talbert </span></font><font
size=2 color="#003366" face="Times New Roman"><span style='font-size:10.0pt;
font-family:"Times New Roman";color:#003366'>P.E., LEED-AP</span></font><font
size=3 color="#003366" face=Papyrus><span style='font-size:12.0pt;font-family:
Papyrus;color:#003366'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color="#003366" face=Papyrus><span
style='font-size:12.0pt;font-family:Papyrus;color:#003366'>Mechanical Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=5 color="#003366" face=Arial><span
style='font-size:16.0pt;font-family:Arial;color:#003366'>Hallam</span></font><b><font
size=5 color="#cc3300" face="Arial Black"><span style='font-size:16.0pt;
font-family:"Arial Black";color:#CC3300;position:relative;top:-1.0pt;
mso-text-raise:1.0pt;font-weight:bold'>///</span></font></b><font size=5
color="#003366" face=Arial><span style='font-size:16.0pt;font-family:Arial;
color:#003366'>ICS<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
color="#003366" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#003366'>38 Eastwood Dr. Suite 200</span></font></st1:address></st1:Street><font
size=2 color="#003366" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#003366'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color="#003366" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#003366'>S. Burlington</span></font></st1:City><font size=2
color="#003366" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#003366'>, <st1:State w:st="on">VT</st1:State> <st1:PostalCode w:st="on">05403</st1:PostalCode></span></font></st1:place><font
size=2 color="#003366" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#003366'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#003366" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#003366'>P: (802) 658-4891<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#003366" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#003366'>F: (802) 658-1457<o:p></o:p></span></font></p>
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