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회귀분석을 이용한 소각장의 소각열 회수 경제성 분석 연구

Economic Assessment of the Heat Recovery from Incineration Plants Based on Regression Analysis

  • 윤정민 (한국과학기술원 건설 및 환경공학과) ;
  • 손형민 (한국과학기술원 건설 및 환경공학과) ;
  • 박동윤 (한국과학기술원 건설 및 환경공학과) ;
  • 장성주 (한국과학기술원 건설 및 환경공학과)
  • Yoon, Jungmin (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
  • Son, Hyeongmin (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
  • Park, Dong Yoon (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
  • Chang, Seongju (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
  • 투고 : 2013.12.12
  • 심사 : 2014.04.02
  • 발행 : 2014.06.30

초록

본 연구에서는 대표적인 폐기물 최종 처리시설인 소각장을 대상으로 소각열 회수에 따른 경제성 분석을 수행하였다. 국내에서 운영 중인 소각장의 건설 및 운영비용, 소각열 회수량에 대한 함수식을 회귀분석을 통해 도출하였으며, 이를 바탕으로 생애주기비용을 비교함으로써 소각열 회수에 대한 경제성을 비교 분석하였다. 도출된 회귀식으로 일일 80톤 처리규모의 소각장을 기준으로 경제성 분석을 진행한 결과, 소각열 회수시 추가 설비 및 인건비로 인한 초기투자 비용 및 운영비용이 크지만, 열회수에 따른 LNG 대체효과로 계산시 11년 이상 운영할 경우 미회수 소각장과 비교하여 경제적 우위성이 있었다. 또한 열 판매와 온실가스 감축효과를 편익으로 계산할 경우 19년의 자본회수기간이 소요됨을 확인하였다.

This study aims at providing an economic assessment for incineration plants which recover heat during its incineration process. In this study, Life Cycle Cost(LCC) of incineration plants is performed based on each regression analysis formula for construction cost, operation cost, and heat generation in order to compare economic feasibility. The result shows that the incineration plant recovering waste heat while processing 80 tons of waste per day increases both initial investment and operation cost but this type of an incineration plant has economical predominance from the recovered waste heat over the one that does not recover heat when being operated for more than eleven years if the retrieved heat replaces the use of LNG. And its payback time reaches more than 19 years in case of selling heat and performing emission trading.

키워드

참고문헌

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피인용 문헌

  1. A Study on the Operating Cost Prediction of Incineration Plant and Landfill Facility using MultI-Regression Analysis vol.35, pp.4, 2018, https://doi.org/10.9786/kswm.2018.35.4.341