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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Sanyogita<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Try upgrading to the latest V2.1 release <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Eric<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> sanyogita manu
[mailto:sanyogitamanu@yahoo.com] <br>
<b>Sent:</b> 17 December 2009 11:41<br>
<b>To:</b> Eric Roberts; Andy Tindale<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Query on DesignBuilder and EnergyPlus: Impact of
air velocity on thermal comfort<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal>Hi Eric,<span style='font-size:10.0pt'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal>I dont know why but I still dont see it anywhere. Is there
some some other precondition within the program or model options for
it to appear??<span style='font-size:10.0pt'><o:p></o:p></span></p>
</div>
<p><span style='font-size:10.0pt'>(snapshot attached)<o:p></o:p></span></p>
<p><span style='font-size:10.0pt'> <o:p></o:p></span></p>
<p><span style='font-size:10.0pt'>Thanks for your patience,<o:p></o:p></span></p>
<p><span style='font-size:10.0pt'> <o:p></o:p></span></p>
<p><span style='font-size:10.0pt'>Sanyogita<o:p></o:p></span></p>
<p><span style='font-size:10.0pt'> <o:p></o:p></span></p>
<p><span style='font-size:10.0pt'>Sanyogita Manu<br>
Energy Efficiency Research Associate<br>
USAID ECO-III Project<br>
International Resources Group (IRG)<br>
AADI Building, Lower Ground Floor<br>
2, Balbir Saxena Marg<br>
Hauz Khas, New Delhi 110016<br>
Tel: +91-11-2685-3110<br>
M: +91-9999-910-554<br>
Email: <a href="mailto:smanu@irgssa.com" target="_blank">smanu@irgssa.com</a><o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=1 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Eric Roberts <eric@zed-uk.com><br>
<b>To:</b> sanyogita manu <sanyogitamanu@yahoo.com>; Andy Tindale
<Andy@designbuilder.co.uk><br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Sent:</b> Thu, December 17, 2009 4:09:50 PM<br>
<b>Subject:</b> RE: [Bldg-sim] Query on DesignBuilder and EnergyPlus: Impact of
air velocity on thermal comfort</span><o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Sanyogita</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The below screen shot will show you where the <b>comfort
velocity</b> is in the model options tool (spanner icon) under simulation tab
in the advanced option</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Operative temperature description can be found here:
http://www.designbuilder.co.uk/programhelp/calculation_options.htm</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Eric</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <img border=0 width=1280 height=800 id="Picture_x0020_2"
src="cid:image001.png@01CA7F15.A1498070"></span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'> </span></b><o:p></o:p></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'> </span></b><o:p></o:p></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'> </span></b><o:p></o:p></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'> </span></b><o:p></o:p></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'> </span></b><o:p></o:p></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>sanyogita
manu<br>
<b>Sent:</b> 17 December 2009 07:12<br>
<b>To:</b> Andy Tindale<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Query on DesignBuilder and EnergyPlus: Impact of
air velocity on thermal comfort</span><o:p></o:p></p>
</div>
</div>
<p class=MsoNormal> <o:p></o:p></p>
<div>
<div>
<p class=MsoNormal>Hi Andy,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>I could not find the input field for
specifying velocity anywhere. Is it something to do with the version; I am
using 2.0.4.002. And one more question: when we use the Operative temperature
control in DesignBuilder, it takes radiant fraction of 0.5 by default, and its
not possible to change it, am I right?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Thanks a lot,<br>
<o:p></o:p></p>
</div>
<p>Sanyogita<o:p></o:p></p>
<p><br>
<span style='font-size:10.0pt'>Energy Efficiency Research Associate<br>
USAID ECO-III Project<br>
International Resources Group (IRG)<br>
AADI Building, Lower Ground Floor<br>
2, Balbir Saxena Marg<br>
Hauz Khas, New Delhi 110016<br>
Tel: +91-11-2685-3110<br>
M: +91-9999-910-554<br>
Email: </span><a href="mailto:smanu@irgssa.com" target="_blank"><span
style='font-size:10.0pt'>smanu@irgssa.com</span></a><o:p></o:p></p>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=1 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Andy Tindale
<Andy@designbuilder.co.uk><br>
<b>To:</b> sanyogita manu <sanyogitamanu@yahoo.com><br>
<b>Cc:</b> "bldg-sim@lists.onebuilding.org"
<bldg-sim@lists.onebuilding.org><br>
<b>Sent:</b> Wed, December 16, 2009 9:27:41 PM<br>
<b>Subject:</b> RE: [Bldg-sim] Query on DesignBuilder and EnergyPlus: Impact of
air velocity on thermal comfort</span><o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Hi Sanyogita,</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Just to mention
that in DesignBuilder, you can define the velocity to be used for the comfort
calculations on the Simulation tab of the model options dialog, under the
Advanced header. I tried changing from the default air velocity from 0.137 m/s
to 2 m/s and obtained very different results for all comfort indices, including
Fanger PMV.</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Regards,</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Andy</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>sanyogita
manu<br>
<b>Sent:</b> 16 December 2009 06:13<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Query on DesignBuilder and EnergyPlus: Impact of air
velocity on thermal comfort</span><o:p></o:p></p>
</div>
</div>
<p class=MsoNormal> <o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><span class=postbody>Hi, </span><br>
<br>
<span class=postbody>I am trying to model the impact of ceiling fans on thermal
comfort in a warm-humid climate, for a naturally ventilated building. Intial
simulation runs obviously show a lot of discomfort with PMV going upto 5.5
during peak summer. We want to model ceiling fans so that the impact of air
velocity on thermal comfort is captured. Naturally this wont lead to achieving
thermal comfort conditions in the space but we feel that it should at least
result in PMV coming down to 4-4.5. I am not sure if doing this is possible in
DesignBuilder but I think one can specify an object called AirVelocity schedule
in EnergyPlus, where one can input air velocity in m/s in one of the fields
(the current EPlus default being 0.137). I want to know that if we modify
(increase) the value of air velocity to about 0.7 (for ceiling fans), would it
be used for comfort calculations? I thought the Fanger comfort model algorithms
use air velocity for calculations but I can't see that happening anywhere in
the Eplus Engineering reference, which could also have been a resultant of my
limited understanding of the subject matter. I also noticed that the Pierce
model takes air velocity into account. Does this mean that we should rather
look at the Pierce model rather than the Fanger model in order to arrive at an
adaptive model of thermal comfort? What we basically want to do is to make sure
that the increased air velocity is used for calculation of PMV in EnergyPlus to
model the impact of ceiling fans. </span><br>
<br>
<span class=postbody>I would be really grateful for any help. </span><br>
<br>
<span class=postbody>Regards, </span><br>
<o:p></o:p></p>
</div>
<p>Sanyogita Manu<br>
Energy Efficiency Research Associate<br>
USAID ECO-III Project<br>
International Resources Group (IRG)<br>
Hauz Khas, New Delhi 110016<br>
Email: <a href="mailto:smanu@irgssa.com" target="_blank">smanu@irgssa.com</a><o:p></o:p></p>
</div>
<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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