Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effect of Coal Properties on Combustion Characteristics in a Pulverized Coal Fired Furnace

미분탄 연소로에서 연소특성에 미치는 석탄특성에 관한 연구

  • 이병화 (부산대학교 대학원 기계공학과) ;
  • 송주헌 (부산대학교 기계공학부) ;
  • 이천성 (부산대학교 대학원 기계공학과) ;
  • 장영준 (부산대학교 기계공학부) ;
  • 전충환 (부산대학교 기계공학부, 화력발전에너지분석센터)
  • Published : 2009.10.01
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Abstract

This study is to investigate the effect of the moisture, volatile matter and particle size in the coal on the pulverized coal combustion characteristics using CFD. The results show that as the moisture content in coal increases, flame temperature decreases because of heat loss driven from latent heat of vaporization and reduction of heating value. As the volatile matter content in the coal increases, the temperature in the region near the burner increases, while the temperature in rear region of boiler decreases. The solution to keep the temperature in the rear region of boiler is suggested that particle size is needed to be larger. As the particle size increases, the temperature in the rear region of boiler show tendency to increase, for combustion burning time of coal could be extended.

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References

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