In this study, a laser sheet technique and PLIF (Planar laser-induced fluorescence) are applied to a laboratory-scale pulverized coal burner of the open type, and the spatial relationship of the pulverized coal particle zone and the combustion reaction zone is examined by simultaneous measurement of Mie scattering and OH-LIF images. It is found that this technique can be used to investigate the spatial relationship of the combustion reaction zone and pulverized-coal particles in turbulent pulverized-coal flames without disturbing the combustion reaction field. In the upstream region, the combustion reaction occurs only in the periphery of the clusters where high-temperature burned gas of the methane pilot flame is entrained and oxygen supply is sufficient. In the downstream region, however, combustion reaction can be seen also within clusters of pulverized-coal particles, since the temperature of pulverized-coal particles rises, and the mixing with emitted volatile matter and ambient air is promoted.

Abstract
 1. 서 론
 2. 실험장치 및 방법
  2.1. 미분탄 연소장치
  2.2. 광학계측 장치
  2.3. 실험방법 및 조건
 3. 실험결과 및 고찰
  3.1. 미분탄입자의 단면화상
  3.2. OH-LIF 화상과 미분탄 입자의 단면화상의 동시측정
  3.3. 통계해석에 의한 연소형태의 검토
 4. 결 론
 REFERENCES

• 황승민(호서대학교 건축토목환경공학부 환경공학전공) | Seung-min Hwang (Department of Environmental Engineering, Hoseo University) Corresponding author