http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
컴팩트 석탄 가스화기 개발을 위한 이중선회버너 운전 평가
강석환,류재홍,정석우,정우현,유상오,이도연,윤용승,이진욱,김규태,이민회,Kang, Suk-Hwan,Ryu, Jae-Hong,Chung, Seok-Woo,Jung, Woo-Hyun,Yoo, Sang-Oh,Lee, Do-Yeon,Yun, Yongseung,Lee, Jin-Wook,Kim, Gyoo-Tae,Yi, Min-Hoe 한국에너지학회 2013 에너지공학 Vol.22 No.2
석탄가스화 기술은 청정석탄에너지 기술 중에서 아주 중요한 대안으로 인식되고 있으며, 이에 전 세계적으로 차세대 석탄가스화기라고 할 수 있는 고효율 저비용 석탄가스화기를 개발하고 있다. 본 연구에서도 이러한 목적의 달성을 위하여 저비용으로 구현이 가능한 컴팩트 석탄가스화기를 개발하고 있으며, 다수개의 공급부로 이루어진 일체형 이중선회형 버너를 개발하였다. 개발된 버너의 가스화 운전조건을 확보하기 위하여 미분탄 분배기와 함께 기존의 석탄가스화기 몸체에 설치하여 가스화 실험을 수행하였다. 인도네시아산 아역청탄인 ABK 탄을 사용하여 1.5톤/일의 파일럿 규모로 $6.4{\sim}7.2kg/cm^2$, $1170{\sim}1300^{\circ}C$ 조건에서 운전을 수행하였다. 우선 성능평가보다는 안정적인 가스화기 운전조건을 확보하는데 중점을 두었다. 그 결과, 안정적인 운전조건에서 탄소전환율은 84.0%, 냉가스 효율 52.1%를 확보할 수 있었다. Coal gasification is considered as one of the best alternatives among clean coal technology and new concept next generation technologies are under being developed to achieve low cost as well as high efficiency. In this study we have developed double swirl multi-burner as part of the development of low cost compact gasifier. We installed new concept multi-burner with pulverized coal distributor to the body of existing gasifier for burner test. Gasification test was performed under the condition of $6.4{\sim}7.2kg/cm^2$ and $1170{\sim}1300^{\circ}C$ by using Indonesian ABK (sub-bituminous) coal to get operation condition of new concept multi-burner. Our interest was focused to ensure a stable operating condition rather than the gasifier performance evaluation. As a result, we were able to achieve the carbon conversion of 84% and the cold gas efficiency of 52.1% at the stable operating conditions.
유상오(Sang Oh Yoo),이진욱(Jin Wook Lee),정석우(Seok Woo Chung),윤성필(Sung Pill Yoon),이재만(Jae Man Lee),이민회(Min Hoe Yi),임성광(Sung Kwang Lee) 한국에너지기후변화학회 2013 에너지기후변화학회지 Vol.8 No.1
Pulverized low rank coal for the utilization of fast fluidized bed gasification is larger in size and higher in moisture content compared to those of entrained bed gasification. So, coal transport might not be stable because of strong possibility of bridging in the injection vessel and plugging in the transport line. In this study we have been trying to develop the new technology to overcome such operational problems. As first step to develop such technology, series of pneumatic transport experiment have been performed using simple transport system which is consist of injection vessel and receiver tank. Characteristics of pneumatic transport of pulverized low rank coal have been studied under various operating conditions such as operating pressure, pressure difference between injection vessel and receive tank and so on.