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Naslov:Treatment of condensation in sandwich panels without known vapour resistance of sealant
Avtorji:ID Vidmar, Gregor (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.e3s-conferences.org/articles/e3sconf/abs/2020/32/e3sconf_nsb2020_07007/e3sconf_nsb2020_07007.html
Opis: Odprti dostop
 
.pdf PDF - Predstavitvena datoteka, prenos (2,11 MB)
MD5: 640B885D7E2D3F21D8D472A011C23A0F
 
URL URL - Izvorni URL, za dostop obiščite https://doi.org/10.1051/e3sconf/202017207007
 
Jezik:Angleški jezik
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:In order to calculate amount of interstitial condensation in a building envelope, water vapour resistance of each layer is of importance. Once having it, 1D calculation according to ISO 13788 with monthly average vapour pressures can be applied. In EN 14509 sandwich panels are considered to be impermeable for water vapour, thus (according to the standard) water vapour cannot enter from outside and condensate in the panels. But it is not always true for real sandwich panels, because joints between neighbouring panels can cause non-neglecting water vapour bridges. Although in measurements of linear water vapour transmittance of the joints (Ψv) stationary boundary vapour pressures can be applied, the measurements can be long lasting. We shortened time needed to get Ψv performing simulations in Delphin6.0. We simulated panels and steel sheets with joints using constant boundary vapour pressures and compared the results with the results of measurements on the equivalent systems. In systems under consideration a sealant in built-in-state, located at a joint of a sandwich panel, is a compressed EPDM tube. It is impossible to directly measure its effective μ according to ISO 12572. In the paper we study to which precision it is possible to determine it using measurements and simulations. Once having effective μ of the sealant (if all other necessary material parameters available) one can simulate condensation in envelopes including sandwich panels in 2D according to EN 15026 using hourly climatic data. Another goal of the study was determination of differences in resulting Ψv values when varying narrowest part of the gap dGAP at the joint in the panels without any sealant. Results confirm significant sensibility of Ψv to variations of dGAP.
Ključne besede:water vapour condensation, water vapour diffusion, numerical simulations, water vapour resistance, linear water vapour transmittance, sendwich panels
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:30.06.2020
Založnik:EDP Sciences
Leto izida:2020
Št. strani:str. 1-7
PID:20.500.12556/DiRROS-18317 Novo okno
UDK:536
ISSN pri članku:2267-1242
DOI:10.1051/e3sconf/202017207007 Novo okno
COBISS.SI-ID:30516739 Novo okno
Avtorske pravice:© The Authors, published by EDP Sciences, 2020
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 30. 9. 2020; Št. prispevka: 07007;
Datum objave v DiRROS:05.03.2024
Število ogledov:812
Število prenosov:450
Metapodatki:XML DC-XML DC-RDF
:
VIDMAR, Gregor, 2020, Treatment of condensation in sandwich panels without known vapour resistance of sealant. V : NSB 2020 [na spletu]. Objavljeni znanstveni prispevek na konferenci. EDP Sciences. 2020. p. 1–7. [Dostopano 15 april 2025]. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=18317
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Gradivo je del zbornika

Naslov:NSB 2020
COBISS.SI-ID:30483203 Novo okno

Gradivo je del revije

Naslov:E3S web of conferences
Skrajšan naslov:E3S web conf.
Založnik:EDP Sciences
ISSN:2267-1242
COBISS.SI-ID:26976295 Novo okno

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:kondenzacija vodne pare, difuzija vodne pare, numerične simulacije, upornost difuzij vodne pare, linijska prepustnost za vodno paro


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