Modeling heat transfers across a silicone-based intumescent coating

NYAZIKA, Tatenda; Jimenez, Maude; Samyn, Fabienne; Bourbigot, Serge

Type de document :

Communication dans un congrès avec actes

DOI :

10.1088/1742-6596/1107/3/032012

URL permanente :

http://hdl.handle.net/20.500.12210/2745

Titre :

Modeling heat transfers across a silicone-based intumescent coating

Auteur(s) :

NYAZIKA, Tatenda [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Jimenez, Maude [Auteur]

Unité Matériaux et Transformations - UMR 8207 [UMET]
Samyn, Fabienne [Auteur]

Unité Matériaux et Transformations - UMR 8207 [UMET]
Bourbigot, Serge [Auteur]

Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la manifestation scientifique :

3rd European Symposium on Fire Safety Science, ESFSS 2018

Ville :

Nancy

Pays :

France

Date de début de la manifestation scientifique :

2018-09

Titre de la revue :

Journal of Physics: Conference Series

Nom court de la revue :

J. Phys.: Conf. Ser.

Éditeur :

IOP Publishing

Date de publication :

2018-11

ISSN :

1742-6588
1742-6596

Discipline(s) HAL :

Chimie/Matériaux

Résumé en anglais : [en]

Silicone-based intumescent coatings (SIBC) containing expandable graphite (EG) have been designed and studied in our laboratory and good physical barrier properties have been reported for both cellulosic and hydrocarbon ...
Lire la suite >Silicone-based intumescent coatings (SIBC) containing expandable graphite (EG) have been designed and studied in our laboratory and good physical barrier properties have been reported for both cellulosic and hydrocarbon fire scenarios. The aim of this work is to develop a preliminary 2D numerical model of this coating behavior during a fire, which is, to the best of our knowledge, not reported yet in the literature for such coating. The fire performance of SIBC containing EG was evaluated in pure radiative heating conduction using a cone calorimeter heating element at 50kW/m2. The intumescent phenomenon of the SBIC containing EG was considered as a heat transfer problem with a moving boundary. Expansion was assumed to be homogenous and occurring in one dimension and a 2D numerical heat transfer model was developed, taking into account the moving boundary using the Arbitrary Langrangian-Eulerian Method (ALE) implemented in COMSOL Multiphysics V.5.3. A water cooled sample holder with a well-defined temperature condition was used to avoid the assumption of the adiabatic conduction at the backside of the sample. The model was consistent with experimental results and it was able to reasonably predict the temperature profiles. However, it did not capture the temperature increase at times higher than 450s because of cracking in the silicone-based intumescent coating.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Projet Européen :

MULTI-CONCEPTUAL DESIGN OF FIRE BARRIER: A SYSTEMIC APPROACH

Établissement(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2019-01-07T11:56:27Z
2019-03-27T10:21:48Z
2019-05-23T09:06:30Z
2019-06-11T13:11:14Z

Fichiers

Nyazika_2018_J._Phys.__Conf._Ser._1107_032012.pdf
Version éditeur
Accès libre
Accéder au document

Ce document est diffusé sous licence Attribution 3.0 United States

Historique des modifications

Numéro de version	Lien	Date de modification
4	20.500.12210/2745*	2019-06-11T13:10:49Z
3	20.500.12210/2745.3	2019-05-23T09:04:32Z
2	20.500.12210/2745.2	2019-03-27T10:18:56Z
1	20.500.12210/2745.1	2019-01-07T11:56:27Z

*Version sélectionnée

Modeling heat transfers across a silicone-based ... BibTeX CSV Excel RIS

Fichiers

Historique des modifications

Modeling heat transfers across a silicone-based ...

BibTeX

CSV

Excel

RIS