For the purpose of evaluating the eco-efficiency(EE) on surplus heat generated from industrial process, techniques of life cycle assessment are adopted in this study. Because it can be indicated both environmental impacts and economic benefits, EE is well known as a useful tool for symbiosis network on the sustainable development of new projects and businesses. To evaluate environmental impacts, the categories were divided into two areas of resource depletion and global warming potential. It can be seen that environmental impact increased a little but much higher economic benefit on the company, environmental performance and economic value were improved on the apartment by the district heating, respectively. In result, eco-industrial park(EIP) project on surplus heat should be found sustainable new business because the EE was in the area of fully positively eco-efficiency and, moreover resource depletion was taken place than the reduction of greenhouse gas.

Abstract
 1. 서 론
 2. 자료 및 방법
  2.1. 산업공생 네트워크
  2.2. 전과정 환경영향 평가
  2.3. 생태효율성 분석
 3. 결과 및 고찰
  3.1. 경제적 가치
  3.2. 환경영향 분석
  3.3. 생태효율성 분석
 4. 결 론
 참 고 문 헌

• 신춘환(동서대학교 에너지환경공학과) | Choon-Hwan Shin (Department of Energy & Environmental Engineering, Dongseo University) Corresponding author
• 박도현(부산패션칼라산업협동조합 에너지․환경연구소) | Do-Hyun Park (Busan Fashion Color Industry Cooperation, Energy Environment Center)
• 김지원(부산대학교 환경기술산업개발연구소) | Ji-Won Kim (Environmental Technology and Industry of Pusan National University)