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<font size="-1"><font face="Arial">Dear Mariana<br>
<br>
</font></font><font size="-1"><font face="Arial">You can change your
TRNBUILD time base for Transfert function calculation in the same frame
as OUTPUTS, if necessary.<br>
The time step must be shorter than the time base and the time base
should be a multiple of the time step.<br>
If you have thin walls, you can define them as massless layer. In that
case, you only have to define its thermal resistance.<br>
<br>
Best regards<br>
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<td colspan="2"><font color="#000000" face="CALIBRI" size="2">Adrien
JEZEQUEL<br>
Simulations Thermiques Dynamiques</font></td>
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Le 18/02/2010 15:46, ghetu mariana a écrit :
<blockquote cite="mid:246563.67131.qm@web27108.mail.ukl.yahoo.com"
type="cite">
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<p class="MsoNormal">Hello,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I’m having a problem with TrnBuild. I’m trying
to describe an office tower in TrnBuild and it keeps sending error
messages that either the timebase is too small (it’s set for 1 hour,
the default value) or that the capacity of a wall is too small. Thing
is the wall type creating the error is just fine, its capacity is good.
After I fix one wall type I get an error message for a different wall
type. I don’t know where all this is coming from.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">By the way, there’s an error in type52 code. The
computation of the convection coefficient for water inside the tubes of
the cooling coil for laminar flow is done considering Nu=4.36. It might
be a simplification but it’s not ok.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Best regards,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Mariana GHETU</p>
<p class="MsoNormal"><span lang="FR"> </span></p>
<p class="MsoNormal"><span lang="FR">Laboratoire Génie Civil et Génie
Mécanique</span></p>
<p class="MsoNormal"><span lang="FR">INSA de Rennes</span></p>
<br>
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<b><span style="font-weight: bold;">Subject:</span></b> TRNSYS-users
Digest, Vol 62, Issue 30<br>
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