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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I read John’s question as asking: can you get the MRT for each
surface? – perhaps I misread it. I would assume, though, that if you could get it
for each surface, than you could calculate the PMV of each zone. Your end
result would show that zone A had -4 and B had +4 and they wouldn’t be averaged
together. This approach would understand and provide results that back up
Vikram’s point that a space near a façade will experience different MRT than a
core zone. Is that not possible in eQUEST?<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'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Alex Krickx<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>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#262F13'>Alex
Krickx<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";
color:gray'>Building Energy Specialist<o:p></o:p></span></p>
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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:9.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>1250 Elko Dr, Sunnyvale, CA 94089<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>(t) 408.541.8124<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";
color:gray'><o:p> </o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:#1F497D'>Warning:</span></i></b><i><span style='font-size:7.5pt;
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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>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><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"'> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Sami,
Vikram<br>
<b>Sent:</b> Thursday, July 01, 2010 1:17 PM<br>
<b>To:</b> Grando, John; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] MRT in eQUEST<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>John,<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'>I'm guessing you wouldn't be doing this analysis on a project
unless you were concerned about thermal comfort issues from skin related
stimuli. <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'>So if you had a PMV of +4 in one zone and -4 in another would
you say that on average everyone in your building is comfortable? <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'>Calculating MRT in a lumped node simulation program is kind of
like that - an average MRT for a zone is often misleading. For example - a room
with a large west window in the summer time will have a much higher MRT for
someone sitting next to the window than for someone sitting near an interior
wall on the other side - especially if there is direct sunlight in the room.
Similarly - in winter - proximity to a north window might result in a much
lower MRT than for someone sitting near the core. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bottom line - you pick the tool that's appropriate to the
analysis. You really want a full-field solution tool (like a CFD program or a
thermal software like RADtherm) to perform comfort analyses like this. <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>
<div>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>Vikram Sami</span></b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>Sustainable Design Analyst<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>1382 Peachtree St. NE, Atlanta, GA
30309<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>t: 404-443-7462
f: </span><span lang=ES style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:gray'>404.892.5823 </span><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'> e: <a
href="mailto:vikram.sami@perkinswill.com">vikram.sami@perkinswill.com</a>
</span><a href="http://www.perkinswill.com/"><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray;text-decoration:none'>www.perkinswill.com</span></a><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:3.0pt;text-autospace:none'><b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Perkins+Will.</span></b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425'>Ideas +
buildings that honor the broader goals of society</span><span style='font-size:
9.0pt;font-family:"Arial","sans-serif";color:green'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Grando,
John<br>
<b>Sent:</b> Thursday, July 01, 2010 3:36 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] MRT in eQUEST<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hello
All,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
have to calculate the PMV for a zone and I did the analysis already in
eQUEST. I need the mean radiant temperature though to perform this
calc. I am pretty sure that MRT is not an output variable so I'm guessing
I need to calculate the wall temperatures and do it myself. Has anyone
tried to do this before? I didn't find anything in the archives or in the
DOE22 manual. Thanks.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> </span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
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<div style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>John Grando</span></b><b><span style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:black'> </span></b><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:blue'>LEED AP</span></b><b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>| </span></b><b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'>Mechanical
Engineer</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> </span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> </span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
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