원문정보
Characteristics of Charcoal in Different Carbonization Temperatures
초록
영어
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.
목차
서론
재료 및 방법
공시재료
밀도 측정
전기정련도 측정
수소이온농도 측정
발열량 측정
목탄의 공업 분석
결과 및 고찰
목탄의 물리적 특성
목탄의 공업분석
목탄의 발열량
결론
참고문헌