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코크스로 연소실내 연료가스 분배특성

Characteristics of Fuel Gas Distribution in Combustion Chamber of Coke Oven

포항산업과학연구원 에너지화성연구팀
Energy & Chemical Process Research Team, Research Institute of Industrial Science & Technology, Korea
HWAHAK KONGHAK, June 2000, 38(3), 416-422(7), NONE
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Abstract

모의 실험장치를 이용하여 연료가스 유량 및 노즐플레이트 크기변화에 따른 코크스로내 연소실 각 flue에서의 연료가스 분배특성을 고찰하였다. 공급유량을 95-205N㎥/hr의 범위로 변화시켰으며, nozzle plate size 또는 1-3mm 변화시키며 실험을 하였다. 모든 노즐플레이트를 같은 크기로 유지하고 연료가스를 공급했을 때 입구쪽 flue이 유량이 출구쪽 유량보다 적었다. 노즐플레이트의 크기가 클수록 연료가스유량이 많았으며, 노즐플레이트 크기가 증가할수록 유량구배도 증가하였다. 따라서 노즐플레이트의 크기가 커져도 크기변화가 같으면 유량구배에 거의 변화가 없음을 알 수 있었다. 또한 출구쪽 유량을 적게 할수록 유량구배도 감소하였다. End flue의 노즐플레이트를 완전히 열었을 때 end flue의 유량이 급격히 중가하였다. Nozzle plate의 크기가 커져도 크기변화가 같으면 유량구배에 거의 변화가 없음을 알 수 있다.
The effect of flow rate and nozzle plate size on distribution of fuel gas in combustion chamber of coke oven was investigated experimentally by means of simulator. As experimental conditions, flow rates are 95-205 N㎥/hr and differences of nozzle plate size are 1-3mm. When the nozzle plate opening areas were equal, the flow rates at entrance were more little than those at outlet by flow in a sudden enlargement. The gas flow rates were proportional to the nozzle plate opening areas and the gradient of flow rate increased with increasing the gradient of nozzle plate opening areas. Even if the nozzle plate opening areas increased and the gradient of nozzle plate opening areas wes equal, the gradient of flow rate was not affected. The full open, flow rates to end flue were suddenly increased.

References

Grosick HA, Helm EJ, Airgood JM, "Underfiring Requirement of Modern Coke Ovens," AISE Year Book, 192 (1976)
Yuzo K, "Gas Distribution Control in Combustion Chamber of Coke Oven," NKK Technical Report, 134, 1 (1991)
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