| Title: | Investigation on minimum ignition energy of mixtures of alpha-pinene-benzene/air |
| Author(s): | Coudour B; Chetehouna K; Rudz S; Gillard P; Garo JP; |
| Address: | "Institut P', UPR 3346 CNRS, ENSMA, Universite de Poitiers, F-86961 Chasseneuil, France; INSA-CVL, PRISME, Univ. Orleans, EA 4229, F-18020 Bourges, France. Electronic address: bruno.coudour@ensma.fr. INSA-CVL, PRISME, Univ. Orleans, EA 4229, F-18020 Bourges, France. PRISME, INSA-CVL, Univ. Orleans, EA 4229, F-18020 Bourges, France. Institut P', UPR 3346 CNRS, ENSMA, Universite de Poitiers, F-86961 Chasseneuil, France" |
| DOI: | 10.1016/j.jhazmat.2014.09.057 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "Minimum ignition energies (MIE) of alpha-pinene-benzene/air mixtures at a given temperature for different equivalence ratios and fuel proportions are experimented in this paper. We used a cylindrical chamber of combustion using a nanosecond pulse at 1,064 nm from a Q-switched Nd:YAG laser. Laser-induced spark ignitions were studied for two molar proportions of alpha-pinene/benzene mixtures, respectively 20-80% and 50-50%. The effect of the equivalence ratio (Phi) has been investigated for 0.7, 0.9, 1.1 and 1.5 and ignition of fuel/air mixtures has been experimented for two different incident laser energies: 25 and 33 mJ. This study aims at observing the influence of different alpha-pinene/benzene proportions on the flammability of the mixture to have further knowledge of the potential of biogenic volatile organic compounds (BVOCs) and smoke mixtures to influence forest fires, especially in the case of the accelerating forest fire phenomenon (AFF). Results of ignition probability and energy absorption are based on 400 laser shots for each studied fuel proportions. MIE results as functions of equivalence ratio compared to data of pure alpha-pinene and pure benzene demonstrate that the presence of benzene in alpha-pinene-air mixture tends to increase ignition probability and reduce MIE without depending strongly on the alpha-pinene/benzene proportion" |
| Keywords: | Air/*analysis Air Pollutants/chemistry Benzene/*chemistry Bicyclic Monoterpenes *Fires Monoterpenes/*chemistry Temperature Volatile Organic Compounds/*chemistry Accelerating forest fires Benzene Laser-induced spark ignition Mie alpha-Pinene; |
| Notes: | "MedlineCoudour, B Chetehouna, K Rudz, S Gillard, P Garo, J P eng Netherlands 2014/12/03 J Hazard Mater. 2015; 283:507-11. doi: 10.1016/j.jhazmat.2014.09.057. Epub 2014 Oct 8" |
