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본 논문에서는 주위 가스 온도와 체류시간에 따른 아 역청탄 촤 입자의 연소 특성에 관한 기본적인 연구를 진행하였다. 실험용 장비로써 노 내 온도 범위가 900°C에서 1400°C까지 조절이 가능한 DTF(drop tube furnace)를 설치하였고, 온도가 보정된 two color pyrometer를 DTF의 상부에 장착하여 촤가 산화할 때의 입자온도를 측정할 수 있게 하였다. 촤 산화 시 반응한 총 질량을 구하기 위해 열중량 분석기를 사용하였으며, 회분 추적법을 통해 분석하였다. 이를 통해 대기압 조건에서 촤가 산화 할때 질량 및 면적 반응성, 반응속도상수들을 결정하였다.


A fundamental investigation has been conducted on the combustion of single particle of a sub-bituminous coal char burning at different temperatures and residence times. The lab-scale test setup consisted of a drop tube furnace where gas temperatures varied from 900°C to 1400°C. A calibrated two color pyrometer, mounted on the top of the furnace, provided temperature profiles of luminous particle during a char oxidation. An amount of char mass reacted during the reaction is measured with thermogravimetry analyzer by using an ash tracer method. As a result, mass and area reactivity as well as reaction rate coefficients are determined for the char burning at atmospheric pressure condition.


A fundamental investigation has been conducted on the combustion of single particle of a sub-bituminous coal char burning at different temperatures and residence times. The lab-scale test setup consisted of a drop tube furnace where gas temperatures varied from 900°C to 1400°C. A calibrated two color pyrometer, mounted on the top of the furnace, provided temperature profiles of luminous particle during a char oxidation. An amount of char mass reacted during the reaction is measured with thermogravimetry analyzer by using an ash tracer method. As a result, mass and area reactivity as well as reaction rate coefficients are determined for the char burning at atmospheric pressure condition.