Spectral radiation emitted by kerosene pool fires

Gilles Parent (1) , Giacomo Erez (1) , Anthony Collin (1) , Mathieu Suzanne (2) , Aurélien Thiry-Muller (2) , Mathieu Weber (1) , Eddie Faure (2) , Pascal Boulet (1)

1 LEMTA - Laboratoire d'Energétique et Mécanique Théorique et Appliquée
2 LCPP - Laboratoire Central de la Préfecture de Police

We present an equivalent medium model that considers emission from the ame volume to compute spectral radiation intensities. This is considered a more detailed description than common radiation models used in re safety applications, which often treat the ame as a grey emitting surface. Given its importance in re radiation, the present study focuses on emission by soot. The required parameters for the model are an equivalent absorption coecient, and an equivalent temperature. They were determined using two independent measurements, namely multispectral opacimetry, and infrared spectrometry. Results are presented for kerosene pool res (widths from 30 cm to 250 cm). It is shown that the equivalent temperature can be considered independent of ame size, and thus an intrinsic parameter of the fuel. These results also make clear that radiation emitted from the ame is not grey, and can only be considered black for very large ames (i.e. wider than 1.75 m for present tests).

Mots clés: spectrometry; radiative heat transfer; pool re; multi-scale; opacimetry

Domaines: Milieux fluides et réactifs; Thermique [physics.class-ph]

Gilles Parent, Giacomo Erez, Anthony Collin, Mathieu Suzanne, Aurélien Thiry-Muller, et al.. Spectral radiation emitted by kerosene pool fires. Fire Safety Journal, 2019, 108, pp.102847. ⟨10.1016/J.FIRESAF.2019.102847⟩. ⟨hal-02410588⟩