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Surface charring of silver fir wood cladding using an enhanced traditional Japanese Yakisugi method

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J-Čermák-BioResources-2-2022.pdf (565.4Kb)
J_ČLÁNEK
Date
2022
Author
Ebner, David Hans
Barbu, Marius-Catalin
Gryc, Vladimír
Čermák, Petr
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Abstract
The aim of this work was to better understand the ignition method of timber charring in order to improve the industrial process. Three silver fir boards were tied together to make a triangular prism, which acted as a chimney. To start the charring process, the traditional Yakisugi method uses an ignitor paper ball. This ignitor paper ball was in this research replaced with a gas burner. The gas burner supplies the required energy in an even level and provides airflow in the upward direction. The surface temperature of the samples increased from 10 to 500 oC in approximately 40 to 80 s at all recorded positions, which is considerably faster than when using a traditional method. The thickness of the charred layer and the resulting cupping effect were investigated as an indicator of the quality of the process. The charred layer produced by the gas burner method was not as thick as was achieved with the traditional method, which can be attributed to a shorter charring time. Approximately half the specimens showed cupping to the charred side, which may be related not only to a shorter charring time than previous studies, but also to the annual ring orientation of the timber. Further research should be performed on the charred layer thickness and cupping to define all relevant parameters.
DOI
10.15376/biores.17.2.2031-2042
URI
https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1586
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  • Článek v periodiku / Article [77]
Citace
Ebner, David Hans, Barbu, Marius-Catalin, Gryc, Vladimír, Čermák, Petr, . (2022). BioResources. Surface charring of silver fir wood cladding using an enhanced traditional Japanese Yakisugi method. 17 (2), 2031-2042, ISSN 1930-2126 Dostupné z: 10.15376/biores.17.2.2031-2042
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Mendel University in Brno | Library | copyright © 2002-2023  | Send FeedbackBASE
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