Experimental study on the backdraft phenomenon of solid fuel.

In this study, a series of small-scale experiments were conducted to investigate the backdraft phenomenon in a compartment (1.1 × 0.4 × 0.75 m) with woodblocks as fuel. This research focused on the effects of compartment window woodblock areas on backdraft time, with a video recording of the experim...

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Auteurs principaux:	Jianlong Zhao, Yanfeng Li, Junmei Li, Youbo Huang, Jinxiang Wu
Format:	article
Langue:	EN
Publié:	Public Library of Science (PLoS) 2021
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/afd07f7f68404354b71df0d9768e44b3
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id	oai:doaj.org-article:afd07f7f68404354b71df0d9768e44b3
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spelling	oai:doaj.org-article:afd07f7f68404354b71df0d9768e44b32021-12-02T20:18:50ZExperimental study on the backdraft phenomenon of solid fuel.1932-620310.1371/journal.pone.0255572https://doaj.org/article/afd07f7f68404354b71df0d9768e44b32021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255572https://doaj.org/toc/1932-6203In this study, a series of small-scale experiments were conducted to investigate the backdraft phenomenon in a compartment (1.1 × 0.4 × 0.75 m) with woodblocks as fuel. This research focused on the effects of compartment window woodblock areas on backdraft time, with a video recording of the experimental phenomena. Thermocouples and a gas analyzer were used to measure the temperature and the concentration of gas components in the compartment, respectively. There was no additional heat source or ignition source pre-set in the compartment at the beginning of the experiments; the experimental processes only depended on the heat released from the burning or smoldering of woodblocks. When compartment ventilation improved, smoldering of woodblocks became intense, and backdraft occurred. The results show that backdraft time is shorten with increases of compartment window and woodblock areas, and opening the upper window of a compartment could avoid the backdraft phenomenon. The results help to understand the backdraft phenomenon of solid fuel and, more importantly, could help firefighters adopt reasonable fire-fighting strategies for restraining backdraft occurrence.Jianlong ZhaoYanfeng LiJunmei LiYoubo HuangJinxiang WuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255572 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianlong Zhao Yanfeng Li Junmei Li Youbo Huang Jinxiang Wu Experimental study on the backdraft phenomenon of solid fuel.
description	In this study, a series of small-scale experiments were conducted to investigate the backdraft phenomenon in a compartment (1.1 × 0.4 × 0.75 m) with woodblocks as fuel. This research focused on the effects of compartment window woodblock areas on backdraft time, with a video recording of the experimental phenomena. Thermocouples and a gas analyzer were used to measure the temperature and the concentration of gas components in the compartment, respectively. There was no additional heat source or ignition source pre-set in the compartment at the beginning of the experiments; the experimental processes only depended on the heat released from the burning or smoldering of woodblocks. When compartment ventilation improved, smoldering of woodblocks became intense, and backdraft occurred. The results show that backdraft time is shorten with increases of compartment window and woodblock areas, and opening the upper window of a compartment could avoid the backdraft phenomenon. The results help to understand the backdraft phenomenon of solid fuel and, more importantly, could help firefighters adopt reasonable fire-fighting strategies for restraining backdraft occurrence.
format	article
author	Jianlong Zhao Yanfeng Li Junmei Li Youbo Huang Jinxiang Wu
author_facet	Jianlong Zhao Yanfeng Li Junmei Li Youbo Huang Jinxiang Wu
author_sort	Jianlong Zhao
title	Experimental study on the backdraft phenomenon of solid fuel.
title_short	Experimental study on the backdraft phenomenon of solid fuel.
title_full	Experimental study on the backdraft phenomenon of solid fuel.
title_fullStr	Experimental study on the backdraft phenomenon of solid fuel.
title_full_unstemmed	Experimental study on the backdraft phenomenon of solid fuel.
title_sort	experimental study on the backdraft phenomenon of solid fuel.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/afd07f7f68404354b71df0d9768e44b3
work_keys_str_mv	AT jianlongzhao experimentalstudyonthebackdraftphenomenonofsolidfuel AT yanfengli experimentalstudyonthebackdraftphenomenonofsolidfuel AT junmeili experimentalstudyonthebackdraftphenomenonofsolidfuel AT youbohuang experimentalstudyonthebackdraftphenomenonofsolidfuel AT jinxiangwu experimentalstudyonthebackdraftphenomenonofsolidfuel
_version_	1718374245743984640

Experimental study on the backdraft phenomenon of solid fuel.

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