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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dear Rabah,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">am I understanding you correct:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">         
</span></span></span><![endif]><i><span lang="EN" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Quser, QSKY_S1-ABS
</span></i><span lang="EN" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">and<i> TSO_S1
</i>are outputs of Type 56</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">         
</span></span></span><![endif]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You take these outputs and use them for your surface gains<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">This will definitely cause convergence problems since you manipulate a balance by using outputs of this balance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You will have to find a different solution for your task.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best<br>
Jakob Merk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" 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:9.0pt;font-family:"Arial","sans-serif";color:black">_________________________________________________________________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Jakob Merk<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">TRNSYS Software Team<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><br>
</span></i><b><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Transsolar Energietechnik GmbH<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Curiestraße 2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">70563 Stuttgart<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Fax:        +49 711 67976-11<br>
Email:    </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="mailto:hotline@transsolar.com"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#0563C1">hotline@transsolar.com</span></a></span><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Web:      </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="http://www.trnsys.de/"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:blue">www.trnsys.de</span></a></span><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">
</span><span style="font-size:11.0pt;font-family:"Arial","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"><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"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
<b>Im Auftrag von </b>Rabah DJEDJIG via TRNSYS-users<br>
<b>Gesendet:</b> 05 July 2016 15:46<br>
<b>An:</b> TRNSYS-users@lists.onebuilding.org<br>
<b>Betreff:</b> [TRNSYS-users] Outside temperature of an external wall at time XXX not converged!<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN" style="font-family:"Courier New"">Dear all,</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN" style="font-family:"Courier New"">Please, can any one help me to fix this problem:</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN" style="font-family:"Courier New""><br>
For some reason, I try to do the following operation on the outside surface (S1) of an external wall (with type 56 and an equation):<br>
<br>
surf. gain outside_S1 = <i>Quser</i>+QSKY_S1-ABS*IT_S1-HCONVO_S1*AREA_S1*(TAMB-TSO_S1)</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN" style="font-family:"Courier New"">i.e. eliminate on this surface all gains calculated automatically by Type 56 and add instead a user defined gain Quser.<br>
<br>
</span><span style="font-family:"Courier New""><br>
</span><span lang="EN" style="font-family:"Courier New"">This seems to work perfectly at the beginning of the simulation before arising this error:<br>
<br>
Message: outside temperature of 1 (external) wall in zone 1 at time  2419.00 not converged!</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN" style="font-family:"Courier New"">I tried to modify Convergence tolerance, to change the components torder, etc ...
</span><span style="font-family:"Courier New"">fruitlessly<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">Best regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">Rabah<o:p></o:p></span></p>
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