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Karol,<br>
The general rule of thumb that I use is 5 times the default (which
accounts only for the thermal capacitance of the air). The formula
ends up being ZoneVolume*1.2*1.007*5 (1.2 is the density of air,
1.007 is the specific heat)<br>
Best,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 7/17/2012 06:01, Karol Bandurski
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Dear All</span><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-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I model block of flats in TRNSYS. One Dwelling
is one zone.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I am wondering how can I estimate heat
capacitance of zones. I take into account partition walls
and air, but what about furniture and other equipment?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Do you have some idea/experience? maybe some
constant coefficient should be applied by me?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Karol</span><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"
lang="EN-US">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Karol Bandurski </span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">MSc.</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"><a
moz-do-not-send="true" href="http://www.ee.put.poznan.pl/"
target="_top"><span
style="color:#1F497D;text-decoration:none" lang="EN-US">Institute
of Environmental Engineering</span></a></span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"
lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"
lang="EN-US">Poznan University of Technology<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"><a
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style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"
lang="EN-US"><o:p></o:p></span></p>
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style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;background:white"><a
moz-do-not-send="true" href="http://www.put.poznan.pl/">www.put.poznan.pl</a><o:p></o:p></span></p>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
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