Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Characteristics of Co-Combustion of Wood Pellet with Sub-Bituminus Coal in A Pilot CFB Combustor

Pilot 순환유동층 연소장치에서의 목재펠릿과 아역청탄 혼소 특성

  • 김동원 (한국전력공사 전력연구원 발전기술연구소) ;
  • 박경일 (한국전력공사 전력연구원 발전기술연구소) ;
  • 이종민 (한국전력공사 전력연구원 발전기술연구소) ;
  • 배용채 (한국전력공사 전력연구원 발전기술연구소)
  • Received : 2019.10.10
  • Accepted : 2019.10.31
  • Published : 2019.10.31
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Abstract

The circulating fluidized bed boiler has an advantage that can burn a variety of fuels from low-grade fuel to coal. In this study, for the design of a circulating fluidized bed boiler using wood pellets, a circulating fluidized bed combustion test device using no external heater was manufactured and used. According to the increase of co-combustion rate with wood pellet, combustion fraction and heat flux by combustor height were measured and pollutant emission characteristics were analyzed. In terms of combustibility, the effect on primary and secondary air ratio were also studied. In addition, as a result of analysis of the effect of corrosive nanoparticles on the combustion of coal with wood pellets, it was confirmed that coal is mostly composed of Ca and S, whereas wood pellets are mostly composed of K, Cl, and Na.

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References

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