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전과정평가(LCA)에 기반한 터치스크린 모니터 스탠드의 친환경적 기구설계
이화조(Hwa-Cho Yi),장운근(Woon-Geun Jang),한훈(Hoon Han),조영래(Young-Rae Jo),전찬곤(Chan-gon Jeon) 한국산업융합학회 2012 한국산업융합학회 논문집 Vol.15 No.4
Recent years, many industries acknowledge that environmental substantiality of products must be an essential role and it is one of the major importances for industries to consider the environmental impacts of products at the early stages of product development. This study investigated eco-design parameters and CO₂-eq. emissions in each stage of raw material acquisition, manufacturing, transportation, use and disuse in life cycle of touch monitor stand based on Eco-Design. In this study, to fulfill of Eco-Design, the environmental impact assessment of through LCA(Life cycle assessment) was carried out with benchmarking monitor stand and we suggested the direction of new design of touch monitor stand mechanism based on eco-friendly considerations. New design based on LCT(Life Cycle Thinking) showed that the following eco-friendly considerations at the early stage of design to be helpful to reduce GWP(Global Warming Potential) [㎏ CO₂-eq.] in new monitor stand development and it is necessary for Eco-Design process of the product.
전기전자제품의 재활용가능률 산정을 위한 부품/소재의 재활용기준 정립에 관한 연구
이화조(Hwa-Cho Yi),강홍윤(Hong-Yun Kang),김진한(Jinhan Kim),심강식(Kangsik Shim),김진호(Jinho Kim),한승철(Seongchul Han) 한국청정기술학회 2008 청정기술 Vol.14 No.4
EU의 WEEE 지침에는 전기전자제품의 생산자들이 반드시 달성하여야 하는 재활용률과 재생률의 목표치가 설정되어 있다. 본 연구에서는 전기전자제품의 생산자들이 개발되는 제품의 재활용가능률과 재생가능률을 산정해 보는데 필요한 부품과 소재들의 재활용률과 재생률의 기준을 만들어 보았다. 먼저 전기전자제품의 재활용공정과 부품 및 소재별 재활용 및 재생특성을 분석해 보았으며, 유럽 현지 업체들의 처리결과에 따른 재활용률과 관련된 자료들을 조사하여 분석하였다. 이러한 결과로 작성된 재활용률과 재생률 DB는 유럽의 전문가들의 의견을 반영하여 개선하였다. European directive DIRECTIVE 2002/96/EC requires minimum recycling & recovery rates on waste electrical and electronic equipment (WEEE). We tried to make references for recycling and recovery rates of parts and materials used in electrical and electronic equipment (EEE), which could be used to calculate recyclability and recoverability rates of a product in the development phase. First, we investigated recycling processes of WEEE and recycling and recovery characteristics of parts and materials. Based on the investigation results and the european recycling data, we made a data base of parts and materials for calculation of recycling and recovery rates of EEE. The developed DB was improved by reflecting advices of european experts.
이화조(Hwa-Cho Yi),강홍윤(Hong-Yun Kang),심강식(Kangsik Shim),김진한(Jinhan Kim),심재술(Jaesul Sim) 한국청정기술학회 2009 청정기술 Vol.15 No.1
EU의 WEEE지침에서는 전기전자제품의 생산자들이 반드시 달성하여야 하는 재활용률과 재생률의 목표치를 설정해 놓았다. 하지만 어떻게 재활용률과 재생률을 계산해야 하는지는 규정하지 않았다. 생산자의 입장에서는 설계단계에서 제품의 폐기단계에서의 재활용률과 재생률을 예측하고 결과를 설계의 개선에 반영하기 위하여 제품의 재활용가능률과 재생가능률을 산정해 볼 수 있는 표준방법이 필요하다. 본 연구에서는 전기전자제품의 생산자들이 개발되는 제품의 재활용가능률 및 재생가능률을 산정할 수 있는 방법들을 조사하고 폐기단계에서의 재활용률과 재생률과 유사한 결과를 얻을 수 있는 재활용가능률과 재생가능률의 산정방법을 개발하였다. 개발된 방법은 여러 가지 종류의 가전제품에 적용하여 결과를 검정해 보았다. European directive DIRECTIVE 2002/96/EC requires the minimum recycling & recovery rate on the waste electrical and electronic equipments (WEEE). But, they do not have guidelines on the calculation methods for recycling and recovery rate. A standard method to calculate recyclability and recoverability rate of products in the designing stage is necessary for the manufacturers so that they can reflect the calculated result to the improvement of product design. In this work, we investigated the existing calculation methods for the recycling and recovery rates of WEEE and the recyclability and recoverability rates of electrical and electronic equipments (EEE). A method for the calculation of recyclability and recoverability rates for the EEE products in the development stage was developed. The newly-developed calculation method was applied to some EEE products and the calculated results were evaluated.
국가 맞춤형 폐자동차 해체시스템 선정 방법에 대한 연구
이화조(Hwa-Cho Yi),박정환(Jung Whan Park),황선(Seon Hwang),박성수(Sung-Su Park) 한국청정기술학회 2017 청정기술 Vol.23 No.1
폐자동차는 재활용 자원의 주요 원천이며 폐자동차 재활용 과정은 해체, 파쇄 및 ASR 처리 단계로 구분된다. 폐자동차 해체는 재사용 가능 부품을 수집하는 등 매우 중요한 단계인데, 크게 독립형(island type)과 라인형(line type) 으로 구분할 수 있고 다양한 유형의 해체 시스템이 존재한다. 또한 국가별 법적 규제, 폐자동차 발생량, 인구밀도, GNP 등 국가 별 특성이 다르기 때문에 특성에 맞는 적절한 해체 시스템을 체계적으로 선정하는 방법이 필요하다. 본 연구에서는 퍼지이론 및 변형 QFD를 활용하여 국가 특성에 대한 데이터 퍼지화 및 해체시스템 적합도를 평가하는 방법을 개발하였으며, 관련 데이터를 보유한 대표 국가에 대해 적용하고 결과를 평가하였다. The recycling process of ELV consists of three phases: dismantling, shredding and ASR treatment. Dismantling is the collection of reusable parts and the most important phase. The types of dismantling system is diverse and each country has different characteristics. Therefore, the selection of a suitable ELV dismantling system for a target country is dependent on the characteristics of each country. But the characteristics of country data changes every year and is insufficient and ambiguous. In this study, fuzzy inference and modified QFD (Quality function deployment) methods are utilized to solve the problems. The fuzzification of characteristics data for each country, customized rules and decision of modified QFD matrix are developed, which is applied to sample countries.
6 단계 에코디자인 프로세스를 이용한 스탠드형 가정용 전기온풍기의 친환경성 개선
이화조 ( Hwa Cho Yi ),서응수 ( Eung Soo Seo ),장필중 ( Phil Jung Jang ),손창민 ( Chang Min Son ) 한국전과정평가학회 2012 한국전과정평가학회지 Vol.13 No.1
A sustainability assessment, i. e. life-cycle assessment, is conducted to reduce the environmental impacts of all stages of a product``s life cycle, from production to disposal. This life-cycle assessment is a technique used for the scientific and quantitative measurement of pollutant emissions and resource consumption. During the assessment, a list of inputs and outputs is compiled and analyzed, their environmental impacts are assessed, and the results are interpreted to serve the study purposes, helping develop an environmentally friendly product design and an improvement strategy. In this study, two types of portable fan heater use (A and B) were evaluated for energy efficiency and environmental friendliness. The analysis results revealed that the heating panel and motor parts had high environmental impacts and were therefore selected as environmental improvement targets, and the improvement strategy was developed to divide the airflow rate into high, medium, and low, just like ordinary fans. Using this technique, the study found that the heating panel and motor parts had poor energy efficiency. Once the strategy was implemented through the life-cycle assessment, their energy efficiency improved dramatically.