• Title/Summary/Keyword: LCA (Life Cycle Assessment)

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전과정평가를 통한 마늘의 탄소배출량 산정연구 (Study of Garlic's Carbon Footprint though LCA)

  • 윤성이;김영란;김태호;박진현;안성우
    • 한국유기농업학회지
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    • 제20권2호
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    • pp.161-172
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    • 2012
  • This study was carried out to estimate carbon footprint and to establish of LCA of garlic production system. We have case study in cultivate garlic 1 kg calculate in carbon footprint. LCA carried out to estimate carbon footprint and to establish of LCI (life cycle inventory) database of garlic production system. The data is from Research of Farmer's income in 2010 (RDA, 2011), and used Pass (5.0.0) program. The value of fertilizer, amount of pesticide input were shown the environmental effect and direct emission. Carbon footprint in agriculture guarantees the choice right the consumer to choose the lower carbon goods. Its can make to strengthen of agriculture and food industry's reduction effort of $CO_2$. Nowadays consumer requests food's safety and environment friendly process. Carbon footprint also needs consumer's relief and incentives.

사무소건축 리모델링에서의 전과정 평가에 관한 연구 - 전기 부분을 중심으로 - (A study of LCA(Life Cycle Assessment) to a office building remodeling - Focused on Electrical Equipment -)

  • 이선동;유호천
    • 한국태양에너지학회 논문집
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    • 제24권3호
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    • pp.85-92
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    • 2004
  • Environmental issues become one of today's central concerns due to draining natural resources and environmental pollution. Architecture is given a great deal of weight on the evoking environmental pollution. In this point of view, polluting factors in architectural planning and construction were predicted in advance and alternative plans were studied, In investigation of alternative plans, both environmental pollution and economical efficiency of various alternatives were considered. A office building was analyzed for energy consumption and construction environmental load by appling LCA. Applying LCA to a office building includes a total amount of materials and energy consumption, environmental impacts and economical efficiency evaluation. In present study, LCA applied to electrical part of a office building and economical efficiency evaluation was considered.

전과정평가(LCA)를 이용한 금속캔의 환경성 평가에 관한 연구 (A Study on Environmental Impact Evaluation of Metallic Can Using Life Cycle Assessment)

  • 백승혁;김형진;권영식;김승섭;최윤근;정찬교
    • 한국환경과학회지
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    • 제20권11호
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    • pp.1395-1401
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    • 2011
  • In this study, Life Cycle Assessment(LCA) has been carried out to evaluate the environmental impacts of a metallic can. A 360 mL volume of an aluminum can bottle was used as the functional unit. The results of Life Cycle Inventory(LCI) showed that iron ore and coal were the major parts of the input materials, whereas aluminum can products, carbon dioxide, wastewater, and hazardous wastes were those of the output ones. According to LCA weighting, it was observed that the most significant impact potential was found to be global warming(49.11%) followed by abiotic resource depletion(47.72%). In the whole system, cold rolled steel coil showed the largest environmental impact potential(86%), followed by electricity(14%). Meanwhile, lubricating oil and industrial water had the minor portion of the total environmental impact potentials. It was suggested that the use of cold rolled steel and electricity should be the main source for $CO_2$, resulting in the big impact on global warming.

S대학교 교육연구동 LCA분석 사례 연구 (A Study on the case study LCA Analysis for the Education and Research Building of S University)

  • 범성우;김민현;박태근
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2003년도 학술대회지
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    • pp.465-468
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    • 2003
  • 전 세계적으로 지구온난화현상, 수질오염 등의 환경문제에 대한 관심이 높아지고 있다. 이러한 환경문제에 대한 인식으로 환경유해요소들에 대한 활발한 연구로 선진국에서는 이미 법적인 제도를 마련하는 등 환경보존 및 유해요소 저감방안에 대한 연구가 진행되고 있다. 건설산업 분야에서도 환경친화성에 대한 정량적 자료로 LCA분석 내용을 제시하도록 ISO에서 규정하고 있다. 국내건설업의 경우 LCA 기법에 대한 연구가 국가적 차원에서 진행되고 있다. 본 연구에서는 LCA분석을 통하여 계획안에 대한 타당성을 확인하고자 하였다. 자재생산단계, 시공단계, 유지관리단계, 폐기처분단계에 대하여 환경영향비용을 고려한 생애주기비용 통합분석결과, 계획안 74,819,560,776원, 대안 78,979,469,602원으로 계획안이 대안에 비해 4.159,908,826원이 절감되는 것으로 분석되었다.

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에너지자원의 이산화탄소 배출량과 비용의 상관관계 분석과 전과정평가 (Correlation Analysis on $CO_2$ Emission and Cost of Energy Resources and Life Cycle Assessment)

  • 김희태;김은철;안태규
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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    • pp.153-153
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    • 2010
  • The world is moving towards a post-carbon society and needs clean and renewable energy for sustainable development. There are many methodological approaches which are helping this shift based on analyzed data about energy resources and which focus on limited types of energy including liquid fossil, solid fossil, gaseous fossil, and biomass (e.g. IPCC Guidelines, ISO 14064-1, WRI Protocol, etc.). We should also consider environmental impact (e.g. greenhouse gas emissions, water use, etc.) and the economic cost of the renewable energy to make a better decision. Recently, researchers have addressed the environmental impact of new technologies which include photovoltaics, wind turbines, hydroelectric power, and biofuel. In this work, we analyze the environmental impact with a carbon emission factor to present a correlation between $CO_2$ emission and the cost of energy resources standardized by the energy output. In addition, we reviewed Life Cycle Assessment (LCA) as another methodology. Researchers who are studying energy systems have ignored the impacts of entire energy systems, e.g. the extraction and processing of fossil fuels. In power sector, the assessment should include extraction, processing, and transportation of fuels, building of power plants, production of electricity, and waste disposal. Therefore LCA could be more suitable tool for energy cost and environmental impact estimation.

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반도체를 대상으로 한 LCA(Life Cycle Assessment)의 방법론 및 적용에 관한 연구 (A Study on Methodology and Application of Life Cycle Assessment - Concerning Semiconductor)

  • 정찬교;구희준
    • 청정기술
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    • 제2권2호
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    • pp.201-213
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    • 1996
  • 본 연구는 국제적 환경인식의 변화로 이제는 사후처리단계로서 환경문제를 다루는 것이 아니라 사전에 오염을 방지하고 오염의 배출을 최대한 억제하고 자원과 에너지를 최대한 효율적으로 이용하며 오염물질을 완전히 배출하지 않도록 하는 환경관리 수단이 요구됨에 따라 사용범위를 예측하기 힘들 정도로 확대되어 가는 LCA의 필요성과 국제적 논의동향을 살펴보고 대응방안을 제시하였다. 그리고 전자혁명 시대인 현대사회의 핵심인 반도체의 국가경쟁력을 높이고 환경을 새로운 수익창출의 기회로 삼는 계기를 마련하기위해 우리나라의 현실에 적응하기 쉬운 Screening LCA를 통해 반도체의 LCA를 수행함으로써 자원소비 측면에서는 Clip kg당 요구되는 투입물과 에너지의 요구량을 정량화하였고 환경영향 측면에서는 배출물의 영향을 정량화 함으로써 반도체 제품을 생산하는데 어느정도의 비용과 에너지와 물질이 투입되며 그것이 환경에 미치는 영향을 표시할 수 있으며 그로인해 문제공정을 도출하여 공정개선의 기회를 마련할 수 있다.

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LCA를 통한 도시 고형 페기물의 환경부하평가 (Environmental Load Assessment of Municipal Solid Waste using LCA)

  • 박정한;;;이병인
    • 한국환경과학회지
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    • 제12권6호
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    • pp.643-650
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    • 2003
  • We analyzed the amount of environmental loads, and the amount of energy consumption through life cycle assessment from a discharge stage to the ultimate disposal to municipal solid waste in Seoul. We carried out inventory analysis of the amount of environmental loads that made the object range collection, intermediate treatment, and the final treatment, and took into consideration each stage exceptions CO$_2$ and NOx , the amount of SOx discharge, and energy consumption. We applied the data of an object model, and acquisition processed the scale of an object model suitably and applied to it to difficult data using the data of the Yokohama City incineration plant in Japan. The amount of environmental loads per Iton of municipal waste were analyzed CO$_2$ 0.4C-ton, SOx 0.4kg and NOx 0.8kg. Moreover, the amount of energy consumption which is 2.4Gcal was computed.

지속가능한 도시기반시설 건설을 위한 잠재적 환경영향 발생 특성 평가 - 하수처리시설, 하수관거, 방수로를 중심으로 - (The Environmental Impact Assessment for Sustainable Urban Infrastructure Construction - A Case Study on Wastewater Treatment Plant, Sewerage System and Tailrace -)

  • 박광호;김창희;황용우
    • 상하수도학회지
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    • 제20권6호
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    • pp.919-926
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    • 2006
  • In this study, environmental impact assessments of wastewater treatment plant (WWTP), sewerage system, and tailrace were performed using LCA methodology. The life cycle stages were divided into 3 categories; construction stage, maintenance stage and demolition & disposal stage. As a tool of impact assessment, Ecoindicator99 containing fate analysis, exposure & effect analysis and damage analysis, was used. As tile results of WWTP LCA, more than 80% of environmental impact was produced from maintenance stage. On the other hand, most of environmental impact was produced from construction stage in the case of tailrace and sewerage system construction.