Article

벡터 개념을 활용한 생태효과성 제안 및 적용

박필주1, 정인태1, 김만영1
Pil Ju Park1, In Tae Jeong1, Mann young Kim1
Author Information & Copyright
1한국환경산업기술원
1Korea Environmental Institute of Technology & Industry

ⓒ Copyright 2011 The Korea Society for Life Cycle Assessment. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Sep 30, 2011

Abstract

Eco-efficiency refers to a ratio between environmental impact and value(or cost) and it has been used as a sustainable index widely. However, the debate on eco-efficiency has somehow left behind the question of limits; no consideration of a relative size as well as the impossibility of weighting among evaluation factors (parameters). Therefore, eco-effectiveness using a vector concept which represents the position of an object in space in relation to an arbitrary reference point is proposed as a new evaluation index. The case study of washing machine in the end of life stage was performed and the comparative analysis with the eco-efficiency was conducted. Although frame(steel) is the most economic material (or part) in the washing machine, the priority is low in eco-efficiency but the highest priority in eco-effectiveness. As shown in eco-effectiveness formula, it is possible to consider the relative size which can not be considered in the eco-efficiency. Furthermore, it has a benefit to give a weighting factor among evaluation factors (parameters). Although the concept of eco-effectiveness is more beneficial than that of eco-efficiency, there still needs to confirm whether distortion occurs in the result when convert the normal value into the relative value.