분무특성에 따른 중유연소 수치해석의 결과와 실험과의 비교

Comparison between heavy oil combustion test and numerical analysis of combustion phenomena subject to changes in injection characteristics

  • 이승수 (한국에너지기술연구원 열병합보일러연구센터) ;
  • 김혁주 (한국에너지기술연구원 열병합보일러연구센터) ;
  • 김종진 (한국에너지기술연구원 열병합보일러연구센터) ;
  • 최규성 (한국에너지기술연구원 열병합보일러연구센터)
  • 발행 : 2003.11.05

초록

Computations were performed to investigate the spray characteristics of the twin fluid nozzle in three stage heavy-oil combustion burner. The burner geometry and flow conditions were provided by a burner company. The goal of the study is to estimate mean droplet size, initial velocity and spread factor of the nozzle through comparison between experiments and numerical analyses. Air stage ratio is 2:4:4 by mass, and O2 in exhaust gas is about 4 % by volume. Here, the agreement between the experiment and numerical analyses is evaluated by NOx generation. Spray characteristics will be linearly interpolated between fuel consumption rate l20L/h and 240 L/h.

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