journal article·2014-07

Flammability limits of biogenic volatile organic compounds emitted by fire-heated vegetation ( Rosmarinus officinalis ) and their potential link with accelerating forest fires in canyons: A Froude-scaling approach

Khaled Chetehouna, Léo Courty, Jean P. Garo, Domingos X. Viegas, Carlos Fernandez-Pello

Journal of Fire Sciences· Volume 32· Issue 4
Publisher page

Abstract

The accelerating forest fire phenomenon for two real accidents is studied. This phenomenon is investigated using the thermochemical hypothesis, based on the ignition of a biogenic volatile organic compounds cloud accumulated in canyons. By heating a Rosmarinus officinalis plant in a specific hermetic enclosure, a mixture of 14 biogenic volatile organic compounds is identified and their mass fractions determined as temperature functions. The theoretical flammability limits of those components are calculated by means of empirical correlations. Froude-scaling law is applied to laboratory emission results to find the concentrations of biogenic volatile organic compounds at field scale. The comparison of the flammability limits with the calculated concentrations at real scale using this changing-scale analysis shows that the emitted biogenic volatile organic compounds can lead to an accelerating forest fire.
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Research context

OpenAlex topics: Fire dynamics and safety research · Fire effects on ecosystems · Combustion and Detonation Processes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

ENSI de Bourges, University of Orléans, PRISME EA 4229, 88 Boulevard Lahitolle, Bourges, France

University of Orléans, ENSI de Bourges, PRISME EA 4229, 63 Avenue de Lattre de Tassigny, Bourges, France

Institut P’, UPR 3346 CNRS, ENSMA, Université de Poitiers, Futuroscope Chasseneuil, France

ADAI, Department of Mechanical Engineering, University of Coimbra, Portugal

Department of Mechanical Engineering, University of California, Berkeley, CA, USA

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