| 디지털 이미지 분석을 이용한 Fly Ash의 원형지수 측정 |
| 이승헌, 김홍주1, 배승묵, 이원준, Etsuo Sakai2, Masaki Daimon2 |
군산대학교 재료${\cdot}$화학공학부
1기초소재(주) 기술연구소
2동경공업대학 대학원 이공학 연구과 |
| Circularity Measurenment of Fly Ash Using Digital Image Processing |
| Seung-Heun Lee, Hong-Joo Kim1, Soon-Muk Bae, Won-Jun Lee, Etsuo Sakai2, Masaki Daimon2 |
Faculty of Materials and Chemical Engineering, Kunsan National University
1Basic Materials Crop., R and D Center
2Department of Metallurgy and Ceramics Science, Graduate School, Tokyo Institute of Technology |
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| ABSTRACT |
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This paper investigates circularity of fly ashes using the digital image processing. Fly ashes directly collect from electrostatic precipitator when the load of conditions of boiler are changed at a coal-fired power plant. Circularity measurement can be accomplished in five steps: ① image acquisition, ② grey image processing, ③ detection the component to measure ④ binary image processing ⑤ feature measurement. The mean circularity of fly ashes is in the range of 0.78 to 0.83. fly ashes collected from the same hopper has similar circularity regardless of the load of boiler and circularity increases as going from the 1st hopper to 3rd one, namely as particle size become finer. |
| Key words:
Fly ash, Image processing, Circularity, Electrostatic precipitator |
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