|
Hi Toni,
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
QTrans_Sx = QCOMI_Sx - QABSI_Sx (+ into zone, - from zone to outside)
with
NType 19 - QCOMI - energy from inside surf. incl. conv. to air and longwave radiation to other surfaces
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]
Best regards,
Christina
Von: TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org> im Auftrag von Toni Calabrese via TRNSYS-users <trnsys-users@lists.onebuilding.org>
Gesendet: Montag, 25. Januar 2021 10:10 An: David BRADLEY <d.bradley@tess-inc.com>; TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org> Cc: Toni Calabrese <toni.calabrese@ost.ch> Betreff: [TRNSYS-users] OUTPUT Transmission losses through windows Hi all, 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?
Thanks in advance
Toni Calabrese, MSc. Wissenschaftlicher Projektmitarbeiter toni.calabrese@spf.ch | toni.calabrese@ost.ch
T +41 58 257 4827
SPF Institut für Solartechnik OST – Ostschweizer Fachhochschule Oberseestr. 10 | CH-8640 Rapperswil | Switzerland | www.spf.ch | www.ost.ch
OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.
|