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Joke,<br>
I like to simulate this situation as two thermal zones; the
conditioned zone below and the plenum zone above. Because the
suspended ceiling basically has no mass to it, I simulate it as a
wall made up of a single purely resistive (ie massless) layer.<br>
best,<br>
Davod<br>
<br>
<br>
On 10/14/2011 03:44, Joke De Beuckelaer wrote:
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<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif"">Dear
all,</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">Can anyone help me what’s the best way to
simulate a suspended false ceiling?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">The goal is to simulate a class room where the
comfort is assured by using night ventilation. However for
acoustic reasons we need a false ceiling.</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">I want to know the percentage of suspended
false ceiling is possible in order to have still enough
inertia from the concrete ceiling.</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">Is the best way just to define two different
types of ceiling (1. A concrete ceiling and 2.a false
ceiling (concrete + air layer + false ceiling)) or has
anyone another idea?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">Is it possible to draw for example some
obstructions in Google sketch up and then to define 3 air
nodes in trnsys. One air node above the suspended false
ceiling; one air node in the middle of the room and one air
node representing the opening window?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">Will it take into account the less availability
of the inertia of the concrete ceiling?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US">Hoping for an answer,</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif""
lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";
color:black" lang="NL-BE">Joke De Beuckelaer</span><span
style="color:black" lang="NL-BE"></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";
color:black" lang="NL-BE">project engineer mep</span><span
style="color:black" lang="NL-BE"></span></p>
<p class="MsoNormal"><span style="color:black" lang="NL-BE"> </span><span
style="font-size:9.0pt;
font-family:"Arial","sans-serif";
color:black" lang="NL-BE"></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";
color:black" lang="NL-BE"> </span></p>
<p class="MsoNormal"><span style="font-family:"Arial
Black","sans-serif"; color:#ED2318"
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color:#1F497D" lang="EN-GB">
</span><span style="font-size:8.0pt; font-family:"Arial
Black","sans-serif"; color:#ED2318"
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<p class="MsoNormal"><b><span style="font-size:9.0pt;
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<p class="MsoNormal"><span style="font-size:8.0pt;
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lang="EN-US"> +32 2 414 04 98
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</span><b><span style="font-size:8.0pt;
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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