http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김장우(Jang-Woo Kim),정진도(Jin-Do Chung),지평삼(Pyung-Sam Ji),황승민(Seung-Min Hwang),박영문(Young-Moon Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Sorbent is mostly calcium-hydroxide, is not highly converted during operation of these processes. How to increase the utilization of calcium-hydroxide has been an important subject for application of dry sorbent injection. To provide rapid mixing for increase utilization rate of sorbent , streamwise vorticity can be introduced into the flowing streams by other means; for example, by installing vortex generators immediately downstream of the wavy trailing edge. Computing results show that the degree of sorbent dispersion depends strongly on duct structure. Highest dispersion efficiency received when vortex generator was installed inside of duct. Lab-scale facility that was made up based on optimum simulating results was operated to verify such as installation of vortex generator. The results presented in this study a optimum condition for the development of practical DSI process.
손재익,선도원,배달희,한근희,지평삼,강용,위영호,이정수 한국화학공학회 1996 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.34 No.3
국내산 무연탄(발열량 : 4,529 ㎉/㎏ 회분 : 38%)의 순환유동층 시험 연소로에서의 연소현상을 고찰하였다. 대상탄은 삼척지역에서 채광된 무연탄으로 평균입경 0.39 ㎜로 분쇄한 후 연소로에 공급하였다. 석탄 공급속도에 따른 온도분포, 과잉공기율 변화에 따른 연소효율, 석회석 투여에 따른 탈황효과, 기타 연소조건이 SO_χ와 CO, NO_χ 발생에 미치는 영향 등을 고착하였다. 연소효율은 과잉공기 15%에서 최대 96%로 나타났으며, 탈황효율은 Ca/S 몰비 2.3에서 92%로 나타났다. CO 배출은 반응기 온도에 따라 최저 210ppm에서 최고 720ppm으로 나타났으며, 석탄 중 질소성분의 NO_χ의 전환은 1차 공기의 비율에 따라 4-10% 범위에서 변화하였다. Combustion characteristics of Korean anthracite with heating value of 4,529㎉/㎏ and ash content of 38% in a. circulating fluidized bed test unit was investigated. Feed coal was received from the mines of Samchuk province and sized to average diameter of 0.39 ㎜. The effect of coal feed rate on temperature profiles, the effect of excess air on combustion efficiency, sorbent effect on desulfurization, and the effect of operating variables on the emission of SO_χ and NO_χ were monitored during opearation. Highest combustion efficiency of 96% was attained at the excess air ratio of l5%. Sulfur retention of 92% was achieved at the Ca/S mole ratio of 2.3. Carbon monoxide emission was varied between 210-720 ppm according to combustor temperature. Conversion of fuel nitrogen to NO_χ varied 4-10% by primary air ratio.