Reaction to fire of polymethylmethacrylate and polyvinylchloride under reduced oxygen concentrations in a controlled-atmospherecone calorimeter
| Autor: | Sarah Chatenet, Olivier Authier, Serge Bourbigot, Gaëlle Fontaine |
|---|---|
| Přispěvatelé: | Mécanique des Fluides, Energies et Environnement (EDF R&D MFEE), EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Lille, CNRS, INRAE, ENSCL, Mécanique des Fluides, Energies et Environnement [EDF R&D MFEE], Unité Matériaux et Transformations (UMET) - UMR 8207, 174496|||Unité Matériaux et Transformations - UMR 8207 [UMET], 120930|||Centrale Lille |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Fire Sciences Journal of Fire Sciences, In press, 40 (4), pp.274-292. ⟨10.1177/07349041221092968⟩ |
| ISSN: | 0734-9041 |
| DOI: | 10.1177/07349041221092968⟩ |
| Popis: | International audience; Electrical cable sheaths are the most abundant fire load in nuclear power plants, mainly in rooms that are kept in under slight pressure. This configuration leads fires to grow in under-ventilated and vitiated conditions. Assessing fire threat involves characterizing the heat released, responsible for fire growth, and the smoke evolved, which may interact with sensitive components in the area. For that purpose, a revisited controlled-atmosphere cone calorimeter has been designed, set up, and coupled to a Fourier transformed infrared spectrometer and an electrical low-pressure impactor to measure simultaneously the evolved gases and aerosols, respectively. This bench-scale apparatus has been first qualified with polymethylmethacrylate. It has second been used to characterize polyvinylchloride cable sheath representative material reaction to fire in under-ventilated and vitiated conditions. It appeared that vitiation in under-ventilated fires lowers the heat release rate and the fuel mass loss rate. |
| Databáze: | OpenAIRE |
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