• Title/Summary/Keyword: 전과정분석

Search Result 307, Processing Time 0.043 seconds

Environmental Impact Assessment of Agricultural Water Facilities using LCA Technique (전과정평가(LCA)기법을 이용한 농업수리시설의 환경영향 분석)

  • Kim, Young-Deuk;Choi, Yo-Han;Kim, Hae-Do;Jo, Jin-Hoon
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2010.05a
    • /
    • pp.1656-1660
    • /
    • 2010
  • 저수지와 양수장은 우리나라에서 용수공급면적기준으로 전체 공급량의 78%를 차지하는 중요한 용수 공급시설이다. 본 연구의 목적은 저수지와 양수장의 환경영향을 LCA기법을 이용해 비교 분석함으로써 두 시설들의 환경영향을 정량적으로 평가하는데 있다. 연구대상 수리시설로서 경기도 안성에 위치한 이동저수지와 은산양수장을 선정하여 각각에 대하여 농업수리시설의 전과정평가를 실시하였다. 평가를 위하여 네덜란드 Pre사가 개발한 소프트웨어 Simapro 7.1를 이용하였다. 두 시설에 대한 원료물질 취득 단계부터 건설, 운영, 유지관리 및 폐기단계까지 전과정의 환경영향을 분석한 결과, 두 종류의 시설 설치에 따른 토지이용, 상 하류의 생태적 영향 등이 고려되지 않았지만 저수지에 의한 농업용수 공급이 양수장에 의한 용수 공급보다 환경친화적이라고 볼 수 있다. 저수지의 경우 건설단계의 환경영향이 크고, 양수장의 경우, 운영단계에 환경영향이 큰 것으로 분석되었다. 단계별로 환경영향은 저수지는 건설단계에 건설재료 예를 들어 레미콘, 시멘트 등이 환경부하를 크게 발생시키기 때문이고, 양수장은 이용 단계에서 용수공급을 위한 전력사용에서 기인하는데, 이는 전력생산시 화석연료와 같은 자원소비가 많기 때문이다. 이번 연구는 토목시설물중 농업 용수 공급시설의 전과정에서 환경영향을 종합적으로 평가하는데 LCA가 활용되었다는 점에서 의의가 있으며, 향후 하드웨어적인 시설뿐만 아니라 농업용수 공급에 따른 전과정평가를 수행하고, 농업용수 LCI D/B 구축에 기초자료를 제공할 수 있을 것으로 예상된다.

  • PDF

A Comparative Study on the Environmental Impacts by Concrete Strength Using End-point LCA methodology (피해산정형 전과정평가 기법을 적용한 콘크리트 압축강도별 환경영향 비교 분석 연구)

  • Kim, Sung-Hee;Tae, Sung-Ho;Chae, Chang-U
    • Journal of the Korea Concrete Institute
    • /
    • v.26 no.4
    • /
    • pp.465-474
    • /
    • 2014
  • This is a comparative study that shows the overall environmental impacts from concrete structures when different compressive strength of concrete applied to structural systems having the same reference flow with different durability. A total of 24 MPa, 40 MPa and 60 MPa cases is analyzed to define the characteristic using end-point perspective LCA methodology including the stages of production, construction, maintenance and disposal. As results, global warming, non-renewable energy and respiratory inorganics problems are the major issues for assessing environmental impacts of concrete products.

Application of Life Cycle Assessment to Enhance the Environmental Performance of Process Systems and Products (공정시스템과 제품의 환경성을 향상시키기 위한 전과정평가의 활용)

  • Lim, Seong-Rin
    • Clean Technology
    • /
    • v.20 no.4
    • /
    • pp.339-348
    • /
    • 2014
  • Life cycle assessment (LCA) has become an important tool used to enhance the environmental performance of process systems and products. LCA is an essential element in design for environment (DfE) because LCA can be utilized to evaluate and analyze environmental impacts incurred in the life cycle and supply chain. This review presents methodologies that can be used to integrate LCA into DfE activities and reduce environmental impacts from process systems and products; and introduces case studies for water supply systems and cellular phones. LCA is first used to quantify environmental impacts and identify the principal contributor to high impacts. In the next step, environmental impacts from principal contributors can be reduced by using mathematical optimization tools as an engineering and technological approach and by utilizing the cooperation of professionals from a diverse range of fields. Because the methodologies and case studies can be applied and extended to other fields, this review paper can contribute to helping prevent environmental pollution and enhance the sustainability of our society.

Analysis regarding the Environmental Impact of the Life Cycle of Housing Complexes in Korea (국내 주거 단지에 대한 전과정 환경영향 분석)

  • Choi, Doo-Sung;Jeon, Hung-Chan;Cho, Kyun-Hyong
    • Korean Journal of Construction Engineering and Management
    • /
    • v.15 no.5
    • /
    • pp.13-21
    • /
    • 2014
  • This study on condominium complex will adopt the quantitative assessment of the influence on the environment throughout the entire life cycle of buildings. This paper applies input-out analysis in order to analyse embodied energy regarding input of materials at material production phase. Also, it calculates environment load at use and demolition and destruction Phases of buildings as analysing energy consumption. The study categorises environment load as six impact categories and undertakes environmental impact evaluation. The consequence shows that the environment load of multi-unit dwelling takes up 88.2% out of the entire environment load of condominium complex. Also, as a result of analyzing the environmental impact of the life cycle of condominium buildings, it was found that such environmental impact comprised of about 11.96% of all industries in Korea that had an environmental impact.

A Study on the Calculation Method of the Elastomeric Bearing Life Cycle Inventory (LCI) Database to Improve Reliability of Evaluation of Environmental Load of Bridges (교량의 환경부하평가 신뢰성 향상을 위한 교량용 탄성받침 전과정목록 산정방법에 관한 연구)

  • Wie, Deahyung;Kim, Youngchun;Kwak, Inho;Hwang, Yongwoo
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.37 no.4
    • /
    • pp.681-691
    • /
    • 2017
  • In this research, life cycle inventory database (LCI DB) was developed for elastomeric bearing employing life cycle assessment (LCA) methodology additionally the reliability improvement rate in the evaluation of the environmental load of the bridge was analyzed. As are result of impact assessment by 6 major impact categories, production of elastomeric bearing puts on environmental impact in the order of resource depletion, global warming, photochemical oxidant creation. and among a wide variety of input, steel plates contributes in most of the impact categories. As a result of applying the elastomeric bearing LCI database constructed in this study, the environmental loads increased by 0.53% on average, and the cut-off based on the cost of input materials increased by 11.36%. It is anticipated that it will be possible to improve the credibility and to provide data based on current production technology, such as estimating GHG emissions and evaluating environmental load, by constructing elastomeric bearing LCI DB.

A study on product development methodology in reverse supply chain (역공급사슬 환경에서의 제품 개발 방법론에 대한 연구)

  • Kim, Jun;Na, Hong-Beom;Park, Jin-U
    • Proceedings of the Korean Operations and Management Science Society Conference
    • /
    • 2005.05a
    • /
    • pp.393-399
    • /
    • 2005
  • 환경에 대한 피해를 최소화하려는 노력은 종전의 소극적인 사후 대처에서 벗어나 환경 부하의 발생을 사전에 차단하기 위한 여러 가지 방법을 모색하는 방향으로 나아가고 있다. 환경친화적 설계를 구현하기 위한 분석과 평가의 도구로 전과정 평가와 제품 생애주기비용 분석 등이 사용되고 있으며, 공급사슬 상에서의 협력을 통해 환경 성과의 향상을 도모하는 공급사슬 환경관리가 기업의 실천 전략으로 대두되고 있다. 제품 개발 및 설계의 초기 단계에 환경 요인을 함께 고려하여 제품의 생산, 유통, 사용, 폐기의 전과정에서 발생하는 부정적 환경 영향을 최소화하는 동시에 기업의 제품 개발 역량을 제고할 수 있는 프레임워크를 제안한다.

  • PDF

An Analysis of Greenhouse Gas Reduction effect of Automotive Engine Re-manufacturing throug Whole Process Analysis (전과정 분석을 통한 자동차엔진 재제조시 온실가스 저감효과 분석)

  • Ji-Hyoung Park;Han-Sol Lee;Yong-Woo Hwang;Young-Chun Kim;Chung-geun Lee
    • Resources Recycling
    • /
    • v.32 no.2
    • /
    • pp.43-51
    • /
    • 2023
  • In this research, through LCA analysis, the environmental impact of automotive engine manufacturing and re-manufacturing was analyzed from the perspective of the entire process, and the greenhouse gas reduction effect was calculated based on this. The amount of greenhouse gas emitted from the process of acquiring and manufacturing raw materials for automotive engines is about 3,473 kg for new manufacturing and 872 kg for re-manufacturing. Thus, the amount of greenhouse gas reduction by engaging in re-manufacturing is about 2,601 kg; the analysis shows a reduction effect in each part of the entire process except for the processing stage. As a result of the LCA weighted analysis, the environmental impact of new product manufacturing was found to be 1.07E+03 Eco-point, and it was 2.67E+02 Eco-point for re-manufacturing. The share of GWP(Global Warming Potential) among the six major impact categories(Abiotic Depletion Potential, Acidification Potential, Eutrophication Potential, Global Warming Potential, Ozone-layer Depletion Potential, Photochemical Oxidant Creation Potential) as high at 99.72%(new manufacturing) and 99.68%(re-manufacturing).

Evaluation of Environmental Impact with Application of the Life Cycle Assessment Method to Swine Waste Treatment Systems (가축분뇨 처리 시스템에 대한 전과정평가 방법을 적용한 환경영향 평가)

  • Shin, Joungdu;Lee, Sun-Ill;Park, Wu-Kyun;Hong, Seung-Gil;Choi, Yong-Su
    • Journal of the Korea Organic Resources Recycling Association
    • /
    • v.21 no.3
    • /
    • pp.64-73
    • /
    • 2013
  • The application of the Life Cycle Assessment (LCA) methodology to analyze the environmental impact to different swine waste treatment systems was investigated. The first part of LCA is to organize an inventory of parameters and emissions released due to the system under investigation. In the following step of the Life Cycle Impact Assessment, the inventory data were analyzed and aggregated in order to finally get one index representing the total environmental burden. For the Life Cycle Impact Assessment (LCIA) the Eco-indicator 95 method has been chosen because this is well documented and regularly applied impact method. Two different swine waste treatment systems such as aerobic and anaerobic digestion systems were chosen as an example for the life cycle impact analysis. For establishing the parameters to be assessed the agricultural environmental effects to above swine waste treatment systems, it has been observed that there was high at T-P emission in anaerobic digestion system and $CO_2$ emission in aerobic digestion system. For Eco-indicator values per environmental effect for swine waste treatment systems related to one tonne of swine waste, it was shown that there was a negative index for global warm potential and soil acidification in aerobic digestion system, but relatively high positive index for eutrophication in anaerobic digestion system.

Life Cycle Assessment of Mobile Phone Charger Containing Recycled Plastics (재생 플라스틱을 적용한 휴대폰 충전기 전과정평가)

  • Heo, Young-chai;Bae, Dae-sik;Oh, Chi-young;Suh, Young-jin;Lee, Kun-mo
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.39 no.12
    • /
    • pp.698-705
    • /
    • 2017
  • Environmental impact of a mobile phone charger containing recycled plastic was quantified using LCA and the environmental benefits from the use of recycled and virgin plastic were compared. The assessment considers potential environmental impacts across the whole life cycle of the charger including; pre-manufacturing; manufacturing; distribution; product use; and end-of-life stages and quantified six environmental impact categories; Abiotic depletion; Acidification; Eutrophication; Global warming; Ozone layer depletion; and Photochemical oxidants creation. The study showed that the environmental impacts of the use stage accounted for 94.4% and 70% in the resource depletion and global warming impact categories, respectively, and the environmental impacts of the pre - manufacturing stage accounted for more than 98% in the other impact categories. The main cause of the environmental impacts in the use stage was electricity consumed by the charger. The main cause in the pre-manufacturing stage was PBA (Printed Board Assembly) and external case manufacturing. In order to quantify the environmental benefits of recycled PC (Polycarbonate) in the exterior case, the environmental impacts of 1 kg production of recycled PC and virgin PC were evaluated. The environmental impact on the abiotic depletion of the recycled PC is estimated to be 30% compared to the virgin PC, and the impacts on the other impact categories of the recycled PC were less than 5% of the virgin plastic. Sensitivity analysis was performed for 12 items including site data and assumptions made. The sensitivity of each item was less than 10%. The results of this study confirm that designing compact and light PBA, improving charging efficiency, and use of recycled plastic are important design factors to reduce the environmental impact of a charger.