Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/92017
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dc.contributorDepartment of Building Environment and Energy Engineeringen_US
dc.creatorWang, Sen_US
dc.creatorDing, Pen_US
dc.creatorLin, Sen_US
dc.creatorGong, Jen_US
dc.creatorHuang, Xen_US
dc.date.accessioned2022-02-07T07:05:02Z-
dc.date.available2022-02-07T07:05:02Z-
dc.identifier.urihttp://hdl.handle.net/10397/92017-
dc.language.isoenen_US
dc.publisherFrontiers Research Foundationen_US
dc.rights© 2021 Wang, Ding, Lin, Gong and Huang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en_US
dc.rightsThe following publication Wang S, Ding P, Lin S, Gong J and Huang X (2021) Smoldering and Flaming of Disc Wood Particles Under External Radiation: Autoignition and Size Effect. Front. Mech. Eng 7:686638 is available at https://doi.org/10.3389/fmech.2021.686638en_US
dc.subjectDisc particlesen_US
dc.subjectFirebrandsen_US
dc.subjectIgnition limiten_US
dc.subjectMinimum radiationen_US
dc.subjectSmoldering fireen_US
dc.titleSmoldering and flaming of disc wood particles under external radiation : autoignition and size effecten_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume7en_US
dc.identifier.doi10.3389/fmech.2021.686638en_US
dcterms.abstractWildfires are global issues that cause severe damages to the society and environment. Wood particles and firebrands are the most common fuels in wildfires, but the size effect on the flaming and smoldering ignitions as well as the subsequent burning behavior is still poorly understood. In this work, a well-controlled experiment was performed to investigate smoldering and flaming ignitions of stationary disc-shaped wood particles with different diameters (25–60 mm) and thicknesses (15–25 mm) under varying radiant heat flux. The ignition difficulty, in terms of the minimum heat flux, increases from smoldering ignition to piloted flaming ignition and then to flaming autoignition. As the sample thickness increases, the minimum heat flux, ignition temperature, and burning duration for flaming autoignition all increase, while the peak burning flux decreases, but they are insensitive to the sample diameter. During ignition and burning processes, the disc particle is deformed due to the interaction between chemical reactions and thermomechanical stresses, especially for smoldering. The characteristic thickness of the smoldering front on wood is also found to be 10–15 mm. This study sheds light on the size effect on the ignition of wood particles by wildfire radiation and helps understand the interaction between flaming and smoldering wildfires.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationFrontiers in mechanical engineering, July 2021, v. 7, 686638en_US
dcterms.isPartOfFrontiers in mechanical engineeringen_US
dcterms.issued2021-07-
dc.identifier.scopus2-s2.0-85112663715-
dc.identifier.eissn2297-3079en_US
dc.identifier.artn686638en_US
dc.description.validate202202 bcvcen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumbera1251, OA_Scopus/WOS-
dc.identifier.SubFormID44349-
dc.description.fundingSourceOthersen_US
dc.description.fundingTextNSFCen_US
dc.description.pubStatusPublisheden_US
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