Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Characteristics of Low Calorific Value of Sewage Sludge by Drying Method

수직원통식 박막 건조방식에 의한 하수슬러지의 저위발열량 특성

  • Mo, Jounggun (Defense Agency for Technology and Quality) ;
  • Lee, Kwangsung (Department of Energy and Mechanical Engineering, Gyeongsang National University) ;
  • Chung, Hanshik (Department of Energy and Mechanical Engineering, Institute of Marine Industry, Gyeongsang National University)
  • 모종근 (국방기술품질원) ;
  • 이광성 (경상대학교 에너지기계공학과) ;
  • 정한식 (경상대학교 에너지기계공학과, 해양산업연구소)
  • Received : 2017.08.01
  • Accepted : 2017.09.29
  • Published : 2017.10.31
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Abstract

In this study, the water content and the low calorific value of the dried sludge are analyzed by using a vertical cylinder type indirect heating type dryer for evaluatation of energy source value. The vertical cylindrical thin film dryer was an Okadora Pilot Plant, and the dryer was indirect heating vertical thin film type. The internal standard consisted of 500 mm in diameter and 700 mm in height. In the drying experiment, 10 kg of dehydrated sewage sludge was added to the dryer and the total amount of the sludge was adjusted to 27 times by variable of the time, the number of revolutions and the steam temperature. The results of analysis of the 27th experiment component of the dried product showed that the average low calorific value of about 11.2 MJ/kg and the water content of 6%. This is satisfy the fuel use standard of the thermal power plant of the sludge.

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References

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