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생활폐기물 소각시설의 운영 실태 분석을 통한 에너지회수 효율 개선방안 검토 KCI 등재

A Study on Improvement Measures of Energy Recovery Efficiency through Analysis of Operational Status of Municipal Solid Waste Incineration Facilities

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

This study was carried out to examine the improvement plan by analyzing the characteristics of imported wastes, operation rate, and benefits of energy recovery for incineration facilities with a treatment capacity greater than 50 ton/ day. The incineration facility capacity increased by 3,280 tons over 15 years, and the actual incineration rate increased to 2,783 ton/day. The operation rate dropped to 76% in 2010 and then rose again to 81% in 2016. The actual calorific value compared to the design calorific value increased by 33.8% from 94.6% in 2002 to 128.4% in 2016. The recovery efficiency decreased by 29% over 16 years from 110.7% to 81.7% in 2002. Recovery and sales of thermal energy from the incinerator (capacity 200 ton/day) dominated the operation cost, and operating income was generated by energy sales (such as power generation and steam). The treatment capacity increased by 11% to 18% after the recalculation of the incineration capacity and has remained consistently above 90% in most facilities to date. In order to solve the problem of high calorific value waste, wastewater, leachate, and clean water should be mixed and incinerated, and heat recovery should be performed through a water-cooled grate and water cooling wall installation. Twenty-five of the 38 incineration facilities (about 70%) are due for a major repair. After the main repair of the facility, the operation rate is expected to increase and the operating cost is expected to decline due to energy recovery. Inspection and repair should be carried out in a timely manner to increase incineration and heat energy recovery efficiencies.

목차
Abstract
 I. 서 론
 II. 분석 방법
  1. 분석 대상 시설
  2. 폐기물 소각처리량 및 가동율 분석
  3. 에너지 회수 효율 검토
  4. 에너지회수가 운영비에 미치는 영향 분석
 III. 분석 결과
  1. 소각처리현황과 가동율
  2. 반입 폐기물 가연분과 발열량
  3. 설계발열량 대비 실측발열량 변화 비교
  4. 열에너지 회수 효율 변화
  5. 에너지효율이 운영비에 미치는 영향
  6. 적정소각용량에 대한 검토
  7. 에너지 효율화 개선 시설 조사
  8. 노후 소각시설의 대보수
 V. 결 론
 References
저자
  • 박상진(서울과학기술대학교 에너지환경대학원 에너지환경공학과) | Sang-Jin Park (Graduate School of Energy & Environment, Seoul National University of Science and Technology)
  • 배재근(서울과학기술대학교 에너지환경대학원 에너지환경공학과) | Chae-gun Phae (Graduate School of Energy & Environment, Seoul National University of Science and Technology) Corresponding author