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Meryem,<br>
your FENÊTRE_120 is set to use the "internal calculation"
algorithm for the convective heat transfer coefficient on both the
front and back side. However, FENÊTRE_120 is used as an external
window and cannot be if its back side convective heat transfer
coefficient is calculated internally. The algorithm used is for
natural convection heat transfer but the outside of buildings are
much more dominated by forced convection so Type56 does not allow
you to use the "internal calculation" algorithm for external
surfaces. <br>
Regards,<br>
David<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 9/9/2014 08:44, meryem serghini
wrote:<br>
</div>
<blockquote
cite="mid:CALtqRNSdfWQBZ687-1Owwfq2pguFemt0O3AP0AijPLGWRYBC8Q@mail.gmail.com"
type="cite">
<div dir="ltr">
<p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black">Hello,</span></i></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"> In
my project
TRNSYS version 17, when I run the calculation, I get an
error that I cannot
fix:</span></i></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black">******Fatal
Error at time: 0.000000 Generated by Unit:
56Generated by Type: 56 Message: Error in automatic
calculation for heat
transfer surface 0 or its adjacent surface!: Automatic
heat transfer
calculation Is Only Allowed on surfaces
Within a zone. Please check building input file (. bui)!*</span></i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"> </span></i></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black">enclosed
my project </span></i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"></span></p>
</div>
<br>
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<br>
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</pre>
</blockquote>
<br>
<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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