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Hi Toni, </div>
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as the modelling in TRNSYS is more detailed than just a transmission based on a U-Value, there is no single NType for transmission. You can calculate the transmission losses from a zone through a surface (window/ opaque) by subtracting the surface's absorption
from the total heat transfer from the zone to the surface</div>
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QTrans_Sx = QCOMI_Sx - QABSI_Sx (+ into zone, - from zone to outside)</div>
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with</div>
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NType 19 - QCOMI - energy from inside surf. incl. conv. to air and longwave radiation to other surfaces </div>
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NType 21 - QABSI - absorbed (or transmitted) at inside surf (includes solar gains, radiative heat, internal radiative gains and wallgains, except longwave radiation exchange with other walls) [kJ/hr]<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> Montag, 25. Januar 2021 10:10<br>
<b>An:</b> David BRADLEY <d.bradley@tess-inc.com>; 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] OUTPUT Transmission losses through windows</font>
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<span lang="EN-US" style="font-size:10.0pt">Hi all,</span></p>
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<span lang="EN-US" style="font-size:10.0pt">for a comparison between two tools I would need to split the total transmission losses in order to have the two contributes (i.e. transmission losses through opaques and windows). Is there an output / a way to have
ONLY the transmission losses through windows?</span></p>
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<span lang="EN-US" style="font-size:10.0pt">Thanks in advance</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><span style="font-size:10.0pt; color:#1F497D"></span></p>
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<span style="font-size:10.0pt; color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span></p>
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<span style="font-size:10.0pt; color:#1F497D"><a href="mailto:toni.calabrese@spf.ch"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt; color:#8C195F">
</span><span style="font-size:10.0pt; color:#1F497D"><a href="mailto:toni.calabrese@ost.ch"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt; color:#8C195F"></span></p>
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