Spectral radiation emitted by kerosene pool fires
| Autor: | Aurélien Thiry-Muller, Pascal Boulet, Gilles Parent, Giacomo Erez, Anthony Collin, Eddie Faure, Mathieu Suzanne, Mathieu Weber |
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| Přispěvatelé: | Laboratoire Énergies et Mécanique Théorique et Appliquée (LEMTA ), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Central de la Préfecture de Police (LCPP), Préfecture de police |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
multi-scale Multispectral image General Physics and Astronomy Equivalent temperature 020101 civil engineering 02 engineering and technology Radiation medicine.disease_cause pool re 7. Clean energy 01 natural sciences 0201 civil engineering spectrometry 010309 optics 0103 physical sciences medicine General Materials Science Safety Risk Reliability and Quality opacimetry Kerosene [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment radiative heat transfer General Chemistry Soot Computational physics Volume (thermodynamics) 13. Climate action Attenuation coefficient [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph] Spectral radiation |
| Zdroj: | Fire Safety Journal Fire Safety Journal, Elsevier, 2019, 108, pp.102847. ⟨10.1016/J.FIRESAF.2019.102847⟩ |
| ISSN: | 0379-7112 |
| DOI: | 10.1016/j.firesaf.2019.102847 |
| Popis: | We present an equivalent medium model that considers emission from the flame volume to compute spectral radiation intensities. This is considered a more detailed description than common radiation models used in fire safety applications, which often treat the flame as a grey emitting surface. Given its importance in fire radiation, the present study focuses on emission by soot. The required parameters for the model are an equivalent absorption coefficient, and an equivalent temperature. They were determined using two independent measurements, namely multispectral opacimetry, and infrared spectrometry. Results are presented for kerosene pool fires (widths from 30 cm to 250 cm). It is shown that the equivalent temperature can be considered independent of flame size, and thus an intrinsic parameter of the fuel. These results also make clear that radiation emitted from the flame is not grey, and can only be considered black for very large flames (i.e. wider than 1.75 m for present tests). |
| Databáze: | OpenAIRE |
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