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Hi Toni, </div>
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you said you are using an internal shading factor for the adjacent window, right? In contrast to external shading, which just uses a simple factor to determine the shading (ESHADE = 1 -> Transmission = 0), internal shading is modelling much more detailed effects,
see image below:</div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">Of all the radiation coming in through the window, a part is absorbed by the shading device and then released to the airnode through convection, some is
reflected towards the window, again there we have absorption, convection and reflection back towards the zone and so on. Therefore, an internal shading device can never prevent all solar gains from entering a zone. Please see
<i>5.2.4.6. Definition of a New Window Type </i>and <i>5.4.2.9. External and Internal Shading Devices
</i>of the Multizone Building part in the TRNSYS Documentation for more info on this.</span><br>
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Best regards, </div>
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Christina</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Von:</b> TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org> im Auftrag von Toni Calabrese via TRNSYS-users <trnsys-users@lists.onebuilding.org><br>
<b>Gesendet:</b> Dienstag, 16. März 2021 18:00<br>
<b>An:</b> TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org><br>
<b>Cc:</b> Toni Calabrese <toni.calabrese@ost.ch><br>
<b>Betreff:</b> [TRNSYS-users] Problem with adjacent window</font>
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<span lang="EN-US" style="font-size:10.0pt">Hi,</span><span style="font-size:10.0pt; color:#1F497D"></span></p>
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<span lang="EN-US" style="font-size:10.0pt">I am working in Trnsys18. I have a building model with two thermal zones (Wintergarten and one room) with an external window for the wintergarten and an adjacent window between the two zones. If I set the external
shading factor of the external window to 1, I have no solar gains in the two zones, as it should be -> CORRECT!</span></p>
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<span lang="EN-US" style="font-size:10.0pt"> </span></p>
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<span lang="EN-US" style="font-size:10.0pt">I tried then to shade just the adjacent window between the two zones (int. shading factor of 1 in TRNBUILD) and I expected solar gains just in the wintergarten, but not in the room. I got solar gains in both zones.
It seems that I am not able to shade completely just the adjacent window.</span></p>
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<span lang="EN-US" style="font-size:10.0pt"> </span></p>
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<span lang="EN-US" style="font-size:10.0pt">Which is the problem?</span></p>
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<b><span style="font-size:10.0pt; color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt; color:#1F497D">, MSc.</span></p>
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<span style="font-size:10.0pt; color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
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<span style="font-size:9.0pt; color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span></p>
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<span style=""> </span></p>
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<img width="75" height="70" align="left" hspace="12" style="width:.7833in; height:.725in" data-outlook-trace="F:1|T:1" src="cid:image005.png@01D71A8E.4EE1FB70"><b><span style="font-size:10.0pt; color:#8C195F">Kursmodul Energiespeicher (4 Tage) an der OST –
Rapperswil:</span></b></p>
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<span style="font-size:10.0pt; color:#004B7A">Alles was Sie zu thermischen, elektrischen, chemischen und mechanischen Energiespeichern wissen müssen:</span></p>
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<span style="font-size:10.0pt; color:#004B7A">Do. 20.05. / Fr. 21.05. / Do. 27.05. / Fr. 28.05.</span></p>
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<span style="font-size:10.0pt; color:#004B7A">Jetzt <a href="https://www.ost.ch/de/event/article/energiespeicher-theorie-und-anwendungen-4-kurstage/">
<span style="color:#004B7A">hier</span></a> anmelden</span><span style="font-size:10.0pt"></span></p>
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