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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 lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif"">When you have two zones with each one air node and some of the common surfaces between the two zones is introduced as “virtual surface” (The other part as a layer
 with only a thermal resistance (suspended ceiling)), does Trnsys takes into account the temperature distribution automatically or do the two air nodes have to belong to the same zone? Because it isn’t possible to couple the airnodes when they belong to different
 zones.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif"">Otherwise, in this case it isn’t to combine the air nodes in one simple zone, because the two zones have adjacent walls (= suspended ceiling).</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif"">To be more clear I’ve added a sketch in attachment. I just want to simulate a suspended ceiling (+- 70% of the room) and to see what the effect of this is on the
 inertia of the concrete ceiling.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif"">Can anybody please help me?</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif""> </span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt; font-family:"Arial","sans-serif"">Greetings,</span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black"> </span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black">Joke De Beuckelaer</span><span lang="NL-BE" style="color:black"></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black">project engineer mep</span><span lang="NL-BE" style="color:black"></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="color:black"> </span><span lang="NL-BE" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black"></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black"> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Arial Black","sans-serif"; color:#ED2318">VK    
</span><b><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black">HEALTHCARE</span></b><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:black"> </span><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:#1F497D">    
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<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:#ED2318">Value by design</span></b><span lang="EN-US" style="color:black"></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt; font-family:"Arial Narrow","sans-serif"; color:#706652">VK ENGINEERING  Avenue Clemenceaulaan 87, 1070 Bruxelles Brussel, Belgium  
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</span><b><span lang="EN-US" style="font-size:8.0pt; font-family:"Arial","sans-serif"; color:#ED2318">m</span></b><span lang="EN-US" style="font-size:8.0pt; font-family:"Arial Narrow","sans-serif"; color:#706652">  +32 473 97 01 50  
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</span><b><span lang="EN-US" style="font-size:8.0pt; font-family:"Arial","sans-serif"; color:#ED2318">w  
</span></b><span lang="EN-US" style="font-size:8.0pt; font-family:"Arial Narrow","sans-serif"; color:#706652">www.vkgroup.be</span></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:8.0pt; font-family:"Arial Narrow","sans-serif""><span style="color:white; background:black; font-weight:bold"> ALWAYS LOOKING FOR GREAT PEOPLE </span><span style="color:white"></span></span></b><b><span lang="EN-GB" style="font-size:8.0pt; font-family:"Arial Narrow","sans-serif"; color:white">
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