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자료유형
학술저널
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강원대학교 산림과학연구소 Journal of forest and environmental science Journal of forest and environmental science 제28권 제4호
발행연도
2012.1
수록면
263 - 267 (5page)

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Characteristics of charcoals manufactured in each temperature as 400, 600 800, 1,000 and 1,200oC were examined. Sapwood and heartwood of Quercus variabilis that one of major species in charcoal materials were used for this experiment. Charcoal density was decreased highly 38-60% compared with wood density and density of sapwood was slightly decreased but heartwood was not changed with increasing carbonization temperature increase. Weight loss of sapwood and heartwood charcoal increased as carbonization temperature increases, and there is no difference between sapwood and heartwood charcoal. Refining degree of sapwood and heartwood charcoal was zero in charring over 800oC. Moisture and ash of sapwood and heartwood charcoal in each carbonization temperature were not differed between sapwood and heartwood. Volatile of sapwood charcoal was slightly higher than that of heartwood, and decreased as carbonization temperature increases. As the carbonization temperature increased, fixed carbon of sapwood and heartwood charcoal increased. Calorific values of charcoal prepared at 600oC were 7,200-7,300 cal/g and then decreased slightly as carbonization temperature increased.

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