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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">Dear Yasmina EL HASNAOUI,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">you may encounter this difference if you use the longwave radiation mode = standard.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">In this case Trnsys uses the starnode approach to calculate the heat transfer of the front side
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">of a surface . (see 05-MultizoneBuilding.pdf Section 5.4.1.6). Thereby, the entered convective heat transfer coefficient<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">is used to calculated a so-c<st1:PersonName w:st="on">alle</st1:PersonName>d equivalent resistance to the starnode and an
additional starnode resistance <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">from the starnode to the air. In order to save calculation time the calculation is performed based on an approx.
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">average surface temperature given under “properties” to the building. For NType 108 the effective coefficient is
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">calculated back from this combined equivalent coefficient with the current temperatures.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">In general, this method yields to good results compared the detailed method although a difference in convective heat transfer
coefficient<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">encountered. You may confirm this for your model by using the detailed longwave radiation mode based on the Gebhart method.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">In the mode, the convective and radiative heat transfer are calculated independently and the entered convective heat transfer
coefficient<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">is equivalent to Ntype 108.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">Kind regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><st1:PersonName w:st="on"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;
color:navy">Marion Hiller</span></font></st1:PersonName><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:
Arial;color:navy"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-GB" style="font-size:10.0pt;font-family:Arial;color:navy">Transsolar Hotline Team<o:p></o:p></span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;
font-family:Tahoma;font-weight:bold">Von:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma">
<st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>-bounces@cae.wisc.edu</st1:PersonName> [mailto:<st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>-bounces@cae.wisc.edu</st1:PersonName>]
<b><span style="font-weight:bold">Im Auftrag von </span></b>yasmina.el-hasnaoui@cofelyaxima-gdfsuez.com<br>
<b><span style="font-weight:bold">Gesendet:</span></b> Mittwoch, 5. Februar 2014 08:52<br>
<b><span style="font-weight:bold">An:</span></b> <st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>@cae.wisc.edu</st1:PersonName><br>
<b><span style="font-weight:bold">Betreff:</span></b> [TRNSYS-users] The Front convective Heat Transfer Coefficient of Wall in TYPE 56</span></font><font size="3" face="Times New Roman"><span style="font-size:12.0pt;font-family:"Times New Roman""><o:p></o:p></span></font></p>
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<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Dear TRNSYS users,
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Does anybody know what is the difference between the front convective Heat Transfer Coefficient that you enter in type 56 and the type 56’s output c<st1:PersonName w:st="on">alle</st1:PersonName>d
NType 108 : HCONVI ( eff.inside cinv. Heat transfer coeff (FRONT) ) ?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Kind regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span lang="FR" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span lang="FR" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<div>
<p class="MsoNormal"><b><font size="2" color="#58595b" face="Tahoma"><span lang="FR" style="font-size:11.0pt;font-family:Tahoma;color:#58595B;font-weight:bold">Yasmina EL HASNAOUI</span></font></b><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#58595B">Ingénieure Calculs</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#58595B">Pôle Process Industriel</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
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</span></font><font size="1" color="#1f497d" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#1F497D">123 avenue Barthélémy Buyer</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
</span></font><font size="1" color="#1f497d" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#1F497D">69005 Lyon – France</span></font><font size="1" color="black" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:black"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" color="#1f497d" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#1F497D">Tel : +33 (0) 426 10 66 94</span></font><font color="#1f497d"><span lang="FR" style="color:
#1F497D"><br>
</span></font><font size="1" color="#1f497d" face="Tahoma"><span lang="FR" style="font-size:9.0pt;font-family:Tahoma;color:#1F497D"><a href="mailto:yasmina.el-hasnaoui@cofelyaxima-gdfsuez.com">yasmina.el-hasnaoui@cofelyaxima-gdfsuez.com</a></span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
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Pensez à l’environnement avant d’imprimer ce message.</span></font></b><font color="#1f497d"><span lang="FR" style="color:#1F497D">
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<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span lang="FR" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><font size="2" face="Tahoma"><span lang="FR" style="font-size:
10.0pt;font-family:Tahoma;font-weight:bold">De :</span></font></b><font size="2" face="Tahoma"><span lang="FR" style="font-size:10.0pt;font-family:Tahoma">
<st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>-bounces@cae.wisc.edu</st1:PersonName> [mailto:<st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>-bounces@cae.wisc.edu</st1:PersonName>]
<b><span style="font-weight:bold">De la part de</span></b> yasmina.el-hasnaoui@cofelyaxima-gdfsuez.com<br>
<b><span style="font-weight:bold">Envoyé :</span></b> Freed 24 jannewaris 2014 9:28<br>
<b><span style="font-weight:bold">À :</span></b> <st1:PersonName w:st="on"><st1:PersonName w:st="on">trnsys-users</st1:PersonName>@cae.wisc.edu</st1:PersonName><br>
<b><span style="font-weight:bold">Objet :</span></b> [SUSPECTED IDENTITY THEFT] [TRNSYS-users] The Front convective Heat Transfer Coefficient of Wall in TYPE 56<o:p></o:p></span></font></p>
</div>
</div>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="FR" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Dear TRNSYS users,
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Does anybody know what is the difference between the front convective Heat Transfer Coefficient that you enter in type 56 and the type 56’s output c<st1:PersonName w:st="on">alle</st1:PersonName>d
NType 108 : HCONVI ( eff.inside cinv. Heat transfer coeff (FRONT) ) ?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt">Kind regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span lang="EN-US" style="font-size:
11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><b><font size="2" color="#58595b" face="Tahoma"><span lang="EN-US" style="font-size:11.0pt;font-family:Tahoma;color:#58595B;font-weight:
bold">Yasmina EL HASNAOUI</span></font></b><font color="#1f497d"><span lang="EN-US" style="color:#1F497D"><br>
</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="EN-US" style="font-size:9.0pt;font-family:Tahoma;color:#58595B">Ingénieure Calculs</span></font><font color="#1f497d"><span lang="EN-US" style="color:#1F497D"><br>
</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="EN-US" style="font-size:9.0pt;font-family:Tahoma;color:#58595B">Pôle Process Industriel</span></font><font color="#1f497d"><span lang="EN-US" style="color:#1F497D"><br>
</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="EN-US" style="font-size:9.0pt;font-family:Tahoma;color:#58595B">Semic</span></font><font size="1" color="#58595b" face="Tahoma"><span lang="FR" style="font-size:9.0pt;
font-family:Tahoma;color:#58595B">ad</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
<br>
<img border="0" width="218" height="76" id="Image_x005f_x0020_1" src="cid:image001.jpg@01CF2322.C5520220" alt="cid:image001.jpg@01CD9B35.D07198D0"><br>
</span></font><font size="1" face="Tahoma"><span lang="FR" style="font-size:9.0pt;
font-family:Tahoma">123 avenue Barthélémy Buyer</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
</span></font><font size="1" face="Tahoma"><span lang="FR" style="font-size:9.0pt;
font-family:Tahoma">69005 Lyon – France<font color="black"><span style="color:black"><o:p></o:p></span></font></span></font></p>
<p class="MsoNormal"><font size="1" face="Tahoma"><span lang="FR" style="font-size:
9.0pt;font-family:Tahoma">Tel : +33 (0) 426 10 66 94</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
</span></font><font size="1" face="Tahoma"><span lang="FR" style="font-size:9.0pt;
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</span></font><font size="1" color="#5f5f5f" face="Tahoma"><span lang="FR" style="font-size:7.0pt;font-family:Tahoma;color:#5F5F5F">Cofely Axima et OMEGA Concept, des marques de la société AXIMA Concept</span></font><font color="#1f497d"><span lang="FR" style="color:#1F497D"><br>
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Pensez à l’environnement avant d’imprimer ce message.</span></font></b><font color="#1f497d"><span lang="FR" style="color:#1F497D">
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