사이클론 연소기에서 성상이 다른 석탄의 연소 특성 비교

홍성선; 황갑성; 최병선

Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.2, 337-344, April, 1994

Export Citation

사이클론 연소기에서 성상이 다른 석탄의 연소 특성 비교

Comparision of Combustion Characteristics of the Different Property Coal in Cyclone Combustor

홍성선, 황갑성, 최병선

초록

높은 연소효율과 환경오염물질을 적게 배출하는 75kw급 소형 접선방향 연료주입식 수직형 사이클론 연소기를 이용하여 성상이 다른 수입 유연탄(역청탄, 아역청탄)을 시료로 하여 송기비 0.4∼1.6 범위에서 각각의 연소 특성 및 연소 후 회분의 포집효율을 조사하였다. 로 내 온도 분포는 전영역에서 역청탄이 아역청탄보다 약 100℃ 이상 높게 나타났고 로 내에서는 로 하부와 축선이 높게 나타났다.

Two coals which have a quite different properties were selected to compare the combustion characteristics in a cyclone combustor. The capacity of the combustion test rig is about 75kW and total volume is 5.7 liters. The pulverized sample coals are well burned from fuel rich(air ratio 0.4) to fuel lean(airs ratio 1.6). Two different property coals show quite different patterns of ash collection in slag pot, dust separator and combustion chamber. Combustion temperature of subbituminous coal is about 100℃ lower than bituminous coal at the entire region, and in case of bituminous coal, hot spot appeared at the lower part and axial line of the combustion chamber.

[References]

Joseph R, The 17th International Conference on FBC Oct. (1982)
Lawn CJ, "Principle of Combustion Engineering for Boilers," 451, Academic Press, New York (1987)
Gupta AK, Lilley PG, Syred N, "Swirl Flows," ABACUS Press, New York (1984)
Zhou L, Zhang Z, Yu K, Chem. Eng. Res. Des., 66, 114 (1988)
Mark HF, Other DF, Encyclopedia of Chemical Technology, The 3rd Ed., John Wiley & Sons, New York (1990)
Merrick D, Coal Combustion and Conversion Technology, Macmillan (1984)
Hwang KS, Ph.D. Thesis, Dept. of Chem. Eng., Univ. of Chungbuk (1993)
Najim SE, Styles AC, Syred N, J. Inst. Energy, 55, 19 (1982)
No SY, Ph.D. Thesis, Dept. of Mechanical Eng. and Energy Studies, Univ. of Wales (1990)

[1] Joseph R, The 17th International Conference on FBC Oct. (1982)

[2] Lawn CJ, "Principle of Combustion Engineering for Boilers," 451, Academic Press, New York (1987)

[3] Gupta AK, Lilley PG, Syred N, "Swirl Flows," ABACUS Press, New York (1984)

[4] Zhou L, Zhang Z, Yu K, Chem. Eng. Res. Des., 66, 114 (1988)

[5] Mark HF, Other DF, Encyclopedia of Chemical Technology, The 3rd Ed., John Wiley & Sons, New York (1990)

[6] Merrick D, Coal Combustion and Conversion Technology, Macmillan (1984)

[7] Hwang KS, Ph.D. Thesis, Dept. of Chem. Eng., Univ. of Chungbuk (1993)

[8] Najim SE, Styles AC, Syred N, J. Inst. Energy, 55, 19 (1982)

[9] No SY, Ph.D. Thesis, Dept. of Mechanical Eng. and Energy Studies, Univ. of Wales (1990)