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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Should you also complement this with changing
the space infiltration schedules as well?<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'>Kevin<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>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<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'> Rimes, Christie
[mailto:Christie.Rimes@wspfk.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 12, 2010
6:55 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Zhen Tian<br>
<b><span style='font-weight:bold'>Cc:</span></b> bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] LEED &
Natural Ventilation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>To include natural
ventilation in a model all you need to do is fill out the Natural Ventilation
Tab at the System level under OA as follows. All inputs have good descriptions
of what needs to be entered so you shouldn’t have a problem defining your
system.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I am still currently
building the model so am not sure if I am going to come up with any errors. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'> <img
width=732 height=548 id="Picture_x005f_x0020_3"
src="cid:image003.jpg@01CB3AFA.243577F0"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><img width=591
height=170 id="Picture_x005f_x0020_1" src="cid:image004.jpg@01CB3AFA.243577F0"
alt="Christie Rimes,
Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard: http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes-wspfk-com-1255981339.vcf
image: "><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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'> Zhen Tian
[mailto:tianzhen9@yahoo.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, August 10, 2010
10:21 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Rimes, Christie<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] LEED &
Natural Ventilation<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Hi Chris,<br>
<br>
Regarding the natural ventilation in eQUEST, how do we use the S-G function?
I cannot find any information in the DOE2.2 manual. Would you please share
more information?<br>
<br>
Thank you very much.<br>
<br>
Regards,<br>
<br>
David<br>
<br>
--- On <b><span style='font-weight:bold'>Fri, 7/30/10, Rimes, Christie <i><span
style='font-style:italic'><Christie.Rimes@wspfk.com></span></i></span></b>
wrote:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
From: Rimes, Christie <Christie.Rimes@wspfk.com><br>
Subject: Re: [Bldg-sim] LEED & Natural Ventilation<br>
To: "Chris" <floodyc@gmail.com><br>
Cc: "bldg-sim@lists.onebuilding.org" <Bldg-sim@lists.onebuilding.org><br>
Date: Friday, July 30, 2010, 2:40 AM<o:p></o:p></span></font></p>
<div id=yiv531392559>
<div>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'>eQuest, TAS and IES,
I know can model natural ventilation. In IES and TAS you can actually model
the operation of the windows by defining limits on indoor temperature, wind
speeds etc. eQuest is a little more basic where you can use a S-G function
for infiltration which calculates higher infiltration rates based on outside
wind conditions. eQuest then calculates if indoor temperatures will be kept
between the indoor temperatures based on the outside conditions. If yes than
it will shut off the mechanical system and calculate 0 energy for that hour.</span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'>Therefore in
programs like IES and TAS you may be able to keep conditions below the set
point even if the outdoor temperatures are hotter due to air movement etc.
You may also want to come to an agreement with the client to allow a slightly
higher set point, however you will need to also apply this to the baseline
model. Otherwise for LEED, you can’t take account for the hours were
naturally ventilation doesn’t provide comfort. Also note that the unmet load
hours can be a maximum of 300 hours so potentially you could take credit for
300 hours for natural ventilation even if it is above the set point. </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'><img width=591
height=170 id="yiv531392559Picture_x005f_x0020_1"
src="cid:image004.jpg@01CB3AFA.243577F0"
alt="Christie Rimes,
Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard: http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes-wspfk-com-1255981339.vcf
image: "></span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d" face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:#1F497D'> </span></font><o:p></o:p></p>
<div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;
border-color:-moz-use-text-color -moz-use-text-color'>
<p class=yiv531392559msonormal><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Chris
[mailto:floodyc@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 29, 2010
11:24 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Rimes, Christie<br>
<b><span style='font-weight:bold'>Cc:</span></b>
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] LEED
& Natural Ventilation</span></font><o:p></o:p></p>
</div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<div>
<p class=yiv531392559msonormal><font size=3 color="#000066"
face="Comic Sans MS"><span style='font-size:12.0pt;font-family:"Comic Sans MS";
color:#000066'>And how did you model the natural ventilation?</span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal style='margin-bottom:12.0pt'><font size=3
color="#000066" face="Comic Sans MS"><span style='font-size:12.0pt;
font-family:"Comic Sans MS";color:#000066'>In summer when external
temperatures are above the room setpoint natural ventilation during the day
would not provide any cooling.</span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>On Thu, Jul 29, 2010 at 11:19, Rimes, Christie <<a
href="/mc/compose?to=Christie.Rimes@wspfk.com" target="_blank">Christie.Rimes@wspfk.com</a>>
wrote:<o:p></o:p></span></font></p>
<div>
<div>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'>I am
currently doing a naturally ventilated building for LEED and I believe that
if the space is achieving indoor temperatures between the given set point
using natural ventilation than the mechanical system energy is 0 for the
proposed design. Any hours where natural ventilation can’t achieve indoor
temperatures within the set points, a mechanical system needs to be modeled
even if there isn’t one in the proposed building. This helps keep the unmet
hours within the requirements for LEED.</span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'>Cheers,</span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'><img
border=0 width=591 height=170 id="yiv531392559_x005f_x005f_x005f_x0000_i1025"
src="cid:image004.jpg@01CB3AFA.243577F0"
alt="Christie Rimes,
Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard: http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes-wspfk-com-1255981339.vcf
image: "></span></font><o:p></o:p></p>
<p class=yiv531392559msonormal><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;
border-color:-moz-use-text-color -moz-use-text-color'>
<p class=yiv531392559msonormal><b><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;font-weight:bold'>From:</span></font></b><font
size=2><span style='font-size:10.0pt'> <a
href="/mc/compose?to=bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>
[mailto:<a href="/mc/compose?to=bldg-sim-bounces@lists.onebuilding.org"
target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Chris<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 29, 2010
11:13 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <a
href="/mc/compose?to=bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] LEED &
Natural Ventilation</span></font><o:p></o:p></p>
</div>
<div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<div>
<p class=yiv531392559msonormal><font size=3 color="#000066"
face="Comic Sans MS"><span style='font-size:12.0pt;font-family:"Comic Sans MS";
color:#000066'>All,</span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 color="#000066"
face="Comic Sans MS"><span style='font-size:12.0pt;font-family:"Comic Sans MS";
color:#000066'>we regularly design and model buildings which rely in part on
natural ventilation as a source of free cooling. The issue we are often faced
with is how to capture this benefit when performing a LEED Appendix G
analysis. Appendix G states that all conditioned spaces must have BOTH
heating and cooling. We would like to remove mechanical coolig in the
proposed design building and thus gain benefit when comparing to the mechanical
cooling system in the reference baseline building.</span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 color="#000066"
face="Comic Sans MS"><span style='font-size:12.0pt;font-family:"Comic Sans MS";
color:#000066'>Has anyone tackled this issue and come to a satisfactory
resolution? </span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 color="#000066"
face="Comic Sans MS"><span style='font-size:12.0pt;font-family:"Comic Sans MS";
color:#000066'>Thanks for your help.</span></font><o:p></o:p></p>
</div>
<div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><br clear=all>
<br>
-- <br>
Chris Flood BSc (Eng)<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Senior</st1:PlaceName> <st1:PlaceType
w:st="on">Building</st1:PlaceType></st1:place> Analyst & Energy Modeller<o:p></o:p></span></font></p>
</div>
</div>
</div>
</div>
</div>
</div>
<p class=yiv531392559msonormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><br>
<br clear=all>
<br>
-- <br>
Chris Flood BSc (Eng)<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Senior</st1:PlaceName> <st1:PlaceType
w:st="on">Building</st1:PlaceType></st1:place> Analyst & Energy Modeller<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
-----Inline Attachment Follows-----<o:p></o:p></span></font></p>
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