Influences of the presence of char layer on flame spreads over wood with different thermal thickness

A series of ISO 5658-2 flame spread experiments on Douglas-fir specimens were carried out to investigate the relationship between flame spread characteristics and thermal thickness of solid combustibles, which is greatly influenced by char formation during combustion. Computations using the fire dyn...

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Published in:Journal of mechanical science and technology 2023, 37(7), , pp.3841-3848
Main Authors: Hong, Ter-Ki, Park, Seul-Hyun
Format: Article
Language:English
Subjects:
Char formation
Combustion
Control
Dynamical Systems
Engineering
Flame retardants
Industrial and Production Engineering
Mechanical Engineering
Original Article
Thickness
Vibration
기계공학
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Park, Seul-Hyun
description A series of ISO 5658-2 flame spread experiments on Douglas-fir specimens were carried out to investigate the relationship between flame spread characteristics and thermal thickness of solid combustibles, which is greatly influenced by char formation during combustion. Computations using the fire dynamics simulator (FDS) were performed to recreate these experiments. The measured and calculated flame spread characteristics were then compared and analyzed based on thermal thickness and char residue ratio. The results clearly show that the effects of char formation on the surface of wood during combustion are more noticeable in thermally thick regimes than in thermally thin regimes. The findings provide an important foundational understanding of the influence of char formation on solid combustibles on flame retardant properties, which has not previously been studied.
doi_str_mv 10.1007/s12206-023-0646-8
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source Springer Link
subjects Char formation
Combustion
Control
Dynamical Systems
Engineering
Flame retardants
Industrial and Production Engineering
Mechanical Engineering
Original Article
Thickness
Vibration
기계공학
title Influences of the presence of char layer on flame spreads over wood with different thermal thickness
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