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Combustion Characteristics of the Quercus variabilis and Zelkova Serrata Dried at Room Temperature  

Chung, Yeong-Jin (Department of Fire and Disaster Prevention, Kangwon National University)
Kwon, In-Kyu (Department of Fire and Disaster Prevention, Kangwon National University)
Publication Information
Journal of Korean Society of Forest Science / v.99, no.1, 2010 , pp. 96-101 More about this Journal
Abstract
One of the restriction of wood as building material is its combustibility. The purpose of this paper is to examine the combustion properties of the quercus variabilis and zelkova serrata which are dried at room temperature and meet the desirable characteristics for use of construction materials. The cone calorimeter (ISO 5660-1) was used to determine the heat release rate (HRR) and fire smoke index, as well as CO production and smoke obscuration. The $HRR_{mean}$ 77.94 kW/$m^2$ of the quercus variabilis at 50 kW/$m^2$ was high in comparison with $HRR_{mean}$ 13.06 kW/$m^2$ for the zelkova serrata. Furthermore, the quercus variabilis has high specific extinction area ($SEA_{mean}$), 41.11 $m^2$/kg compared with $SEA_{mean}$ 9.23 $m^2$/kg of zelkova serrata. Thease results are depend on the density of tested wood species. In addition, the quercus variabilis has high CO production rate compared with that of zelkova serrata. Also, zelkova serrata showed an increase of retardant properties attributed to char formation compared with that of quercus variabilis.
Keywords
heat release rate; combustion propperties; fire smoke index; wood;
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