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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Amin,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">the main difference is that for “Identical” the same absorbed solar radiation and longwave radiation gains are imposed on the back side of the surfaces in addition to convective heat
transfere.<br>
“Userdefined” doesn’t include any radiation gain. Only a heat transfer from the surface node defined by the “convective heat transfer coefficient” of the back sides of the surface and the given temperature is calculated.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">More detailed information is given int eh Type56 manual.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Marion<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Transsolar Software Team<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#4472C4">hotline@transsolar.com</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Transsolar
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Stuttgart | Munich | Paris | New York<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Transsolar Energietechnik GmbH | Curiestrasse 2 | 70563 Stuttgart | Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">CEO: Matthias Schuler, Thomas Auer, Stefan Holst, Dieter Schnelle
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Registered at Amtsgericht Stuttgart HRB 23347 | USt-IdNr.: DE 152272639<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Von:</b> TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
<b>Im Auftrag von </b>Amin HADDAD via TRNSYS-users<br>
<b>Gesendet:</b> Mittwoch, 16. Juni 2021 13:50<br>
<b>An:</b> TRNSYS users mailing list at OneBuilding.org <TRNSYS-users@lists.onebuilding.org><br>
<b>Cc:</b> Amin HADDAD <itshaddad1@gmail.com><br>
<b>Betreff:</b> [TRNSYS-users] Question about selecting boundary temperatures in TRNBUILD<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi dear users,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I would like to know, when selecting a boundary wall, how TRNBUILD (Type 56) will assume or calculate the temperature boundary condition when choosing the option "Identical" instead of selecting ''Userdefined'' ?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank you for helping<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Amin<o:p></o:p></p>
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