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dc.contributor.authorAgueda Costafreda, Alba
dc.contributor.authorPastor Ferrer, Elsa
dc.contributor.authorPérez, Yolanda
dc.contributor.authorPlanas Cuchi, Eulàlia
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2010-06-21T12:53:13Z
dc.date.available2010-06-21T12:53:13Z
dc.date.created2009-06
dc.date.issued2009-06
dc.identifier.citationCostafreda, A. [et al.]. Experimental study of the emissivity of flames resulting from the combustion of forest fuels. "International journal of thermal sciences", Juny 2009, vol. 49, núm. 3, p. 543-554.
dc.identifier.issn1290-0729
dc.identifier.urihttp://hdl.handle.net/2117/7765
dc.description.abstractHeat transfer by radiation is taken into account in most models that predict the propagation of forest fires. This heat transfer mechanism is normally formulated according to the Stefan–Boltzmann law in terms of flame temperature and flame emissivity. This study focused on flame emissivity. Experimental studies carried out to compute the emissivity of the flames generated during the combustion of forest fuels were reviewed, thereby highlighting differences in methodologies and results. Since the results of these studies with regard to the exponential relationship between flame emissivity and flame thickness were not in agreement, two methods based on IR imagery were used in the present study to calculate flame emissivity values. Nine circular fuel beds with a diameter of 0.3–2.5 m were prepared with common Mediterranean species and burned as stationary fires. An exponential correlation between flame emissivity and flame thickness was observed for both methods. According to the results of this study, only flames thicker than 3.2 m would exhibit an emissivity close to that of a blackbody (0.9), and the associated extinction coefficient would be 0.72. A long-term retardant product was used to treat the fuel of two of the nine tests that were carried out and no effect on flame emissivity was observed.
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Impacte ambiental
dc.titleExperimental study of the emissivity of flames resulting from the combustion of forest fuels
dc.typeArticle
dc.subject.lemacCombustibles vegetals
dc.subject.lemacEcologia dels focs
dc.subject.lemacCalor -- Transmissió
dc.subject.lemacRadiació
dc.contributor.groupUniversitat Politècnica de Catalunya. CERTEC - Centre d'Estudis del Risc Tecnològic
dc.identifier.doi10.1016/j.ijthermalsci.2009.09.006
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac2028609
dc.description.versionPostprint (published version)
local.citation.authorÁgueda, A.; Pastor, E.; Pérez, Y.; Planas, E.
local.citation.publicationNameInternational journal of thermal sciences
local.citation.volume49
local.citation.number3
local.citation.startingPage543
local.citation.endingPage554


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain