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

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

  • Yoon, Sung-Yee;Kim, Young-Ran;Kim, Tae-Ho;Park, Jin-Hyun;Ahn, Sung-Woo
    • Korean Journal of Organic Agriculture
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    • v.20 no.2
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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.

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

  • Lee, Seon-Dong;Yoo, Ho-Chun
    • Journal of the Korean Solar Energy Society
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    • v.24 no.3
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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.

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

  • Baek, Seung-Hyuk;Kim, Hyung-Jin;Kwon, Young-Shik;Kim, Seung-Sup;Choi, Yoon-Geun;Chung, Chan-Kyo
    • Journal of Environmental Science International
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    • v.20 no.11
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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.

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

  • Bum Sung-Woo;Kim Min-Hyun;Park Tae-Keun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.465-468
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    • 2003
  • It has taken a growing interest about environmental problems such as global warming and water pollution. Because of intensified environmental problems, it would be going on the research about environmental preservation and harmful factor reduction. Also, it makes ISO to show the quantitative data about LCA analysis. The research of LCA method in the domestic construction industry has advanced stealing from a national point of view. In this study, it would be possible to confirm the feasibility of a plan by LCA analysis. Moreover, the result of life cycle cost which deliberate the influence cost of environment in the steps of material production, construction, maintenance, and disposal has made to be 74,819,560,776 won in a plan and 78,979.469,602won in alternative. That is, it would analysis for a plan to reduce 4,159,908,826 won for alternative.

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

  • Kim, Heetae;Kim, Eun Chul;Ahn, Tae Kyu
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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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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A Study on Methodology and Application of Life Cycle Assessment - Concerning Semiconductor (반도체를 대상으로 한 LCA(Life Cycle Assessment)의 방법론 및 적용에 관한 연구)

  • Chung, Chan Kyo;Koo, Hee Jun
    • Clean Technology
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    • v.2 no.2
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    • pp.201-213
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    • 1996
  • Environmental regulation has traditionally focused on specific phenomena and adopted the so-called end-of-pipe approach. Recently, however, the new environmental paradigm is more concerned with minimization of waste generation, efficient material and energy use, pollution prevention, etc. The basis of above concept is that one must consider the environmental impacts of a product not only during its manufacturing stage, but during all life stages. In the present study, the current status of LCA and its importance to environmental impacts have been reviewed. In the usual approach to LCA, screening LCA method has been used to promote international competition and define environmental concerns during semiconductor manufacturing. In the present study, a review of semiconductor manufacturing process and its environmental implication has been conducted to quantify the material and energy requirements, minimize the waste generation, and evaluate production cost. Recommended activities are also specified for process modification to improve the process efficiency.

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

  • ;Susumu Tohno;Mikio Kasshara
    • Journal of Environmental Science International
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    • v.12 no.6
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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.

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

  • Park, Kwang-Ho;Kim, Chang-Hee;Hwang, Yong-Woo
    • Journal of Korean Society of Water and Wastewater
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    • v.20 no.6
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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.