Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Study on the Size Reduction Characteristics of Miscanthus sacchariflorus via Image Processing

  • Lee, Hyoung-Woo (College of Agriculture and Life Science, Chonnam National University) ;
  • Lee, Jae-Won (College of Agriculture and Life Science, Chonnam National University) ;
  • Gong, Sung-Ho (Intertek Kimsco Co., Ltd.) ;
  • Song, Yeon-Sang (Bioenergy Crop Research Center, National Institute of Crop Science, Rural Development Administration)
  • Received : 2018.03.07
  • Accepted : 2018.06.19
  • Published : 2018.07.25
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Abstract

Size reduction is an important pre-processing operation for utilizing biomass as a sustainable resource in industrial-scale energy production and as a raw material for other industries. This work investigates the size reduction characteristics of air-dried Miscanthus sacchariflorus Goedae-Uksae 1 (Amur silver grass) via image processing and identifies the morphological characteristics of comminuted and screened M. sacchariflorus. At chopping lengths of 18, 40, 80, and 160 mm, 81%, 77%, 78%, and 76% of the particles, respectively, passed through a 4-mm sieve. Even a knife mill with a very small screen aperture (>1 mm) admitted over 10% of the particles. The average circularity and aspect ratio of the particles were <0.30 and >10, respectively. These results confirm that in all preparation modes, most M. sacchariflorus particles were needle-like in shape, irrespective of the type of preparation.

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References

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