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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'>Dear Stefano,<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 lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>one option is to place an
“active layer” in the middle of your wall and set the mass flow to
0. <o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Internally this will
split your wall into two pieces.<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><st1:City w:st="on"><st1:place w:st="on"><font size=2
color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial;color:navy'>Marion</span></font></st1:place></st1:City><font size=2
color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial;color:navy'><o:p></o:p></span></font>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font>
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<div>
<p class=MsoNormal><b><font size=2 color="#005a00" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#005A00;font-weight:bold'>Dipl.-Ing.
Marion Hiller </span></font></b><b><font size=2 color="#009900"><span
style='font-size:10.0pt;color:#009900;font-weight:bold'><br>
</span></font></b><b><font size=2 color="#007000" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#007000;font-weight:bold'>TRANSSOLAR:
KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort
in Gebäude </span></font></b><b><font size=1 color="#005a00" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#005A00;font-weight:bold'><br>
Munich - New York - Stuttgart + 49.711.67976.0 <br>
<br>
</span></font></b><b><font size=1 color=black face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:black;font-weight:bold'>Transsolar
Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart <br>
Amtsgericht Stuttgart - HRB 23347, Steuernummer 99073/00911, USt-IdNr.:
DE152272639</span></font></b><font color=navy><span style='color:navy'><o:p></o:p></span></font>
</p>
<p class=MsoNormal><b><font size=1 color=black face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:black;font-weight:bold'>Geschäftsführer:
Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer, Dipl.Phys. Stefan Holst,
Prof. Dipl.-Ing. Bleicher <o:p></o:p></span></font></b>
</p>
<div>
<p class=MsoNormal><font size=2 color=navy face=Calibri><span style='font-size:
11.0pt;color:navy'> </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>
</div>
</div>
<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>
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face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>
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</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Von:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Avesani Stefano
[mailto:stefano.avesani@eurac.edu] <br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Montag, 21. März 2011
18:15<br>
<b><span style='font-weight:bold'>An:</span></b> trnsys-users@cae.wisc.edu<br>
<b><span style='font-weight:bold'>Betreff:</span></b> [TRNSYS-users] building
with walls with big thermal mass</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 lang=EN-US style='font-size:
11.0pt'>Dear all,<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>I need to simulate the behavior of a building with big thermal mass
(old church, circa 90 cm stone wall).<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Unfortunately, this condition does not fulfill the stability criteria.<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Which is the best way to simulate this case? Would it make sense to
create another adjacent thermal zone with no air mass capacitance and with the
external wall as half of the massive original wall?<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Thanks for helping and suggestions<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Stefano<o:p></o:p></span></font>
</p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font>
</p>
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