• Title/Summary/Keyword: 온실가스 감축량

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An Analysis of the Jet Fuel Consumption and the GHG Emission by the Flight Phase (항공기 비행단계별 연료소비 분석 및 Tier 3 배출량 산정)

  • Lee, Ju Hyoung;Kim, Yong Seok;Shin, Hong Chul
    • Journal of Climate Change Research
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    • v.5 no.1
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    • pp.61-70
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    • 2014
  • The amount of greenhouse gas (GHG) emissions has been increasing steadily over the last 3 years (2009~2011), averaging 5.7 percent a year, due to the growth of low cost carriers and the increased demand for air transportations. The present study attempts to investigate the aviation fuel consumption and GHG emissions of Tier 3a type by the flight phase from three aircraft type such as B737-600(routes between Gimpo-Jeju airport), B737-700(routes between Gimpo-Jeju airport and Inchon-Narita), B737-800(routes between Inchon-Narita) using the Flight Operation Quality Assurance(FOQA) data of the year 2011.

Effect of Power Output Reduction on the System Marginal Price and Green House Gas Emission in Coal-Fired Power Generation (석탄화력발전 출력감소가 계통한계가격 및 온실가스 배출량에 미치는 영향)

  • Lim, Jiyong;Yoo, Hoseon
    • Plant Journal
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    • v.14 no.1
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    • pp.47-51
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    • 2018
  • This study analyzed the effect of power output reduction in coal fired power generation on the change of system marginal price and green house gas emissions. Analytical method was used for electricity market forecasting system used in korea state owned companies. Operating conditions of the power system was based on the the 7th Basic Plan for Electricity Demand and Supply. This as a reference, I analyzed change of system marginal price and green house gas emission by reduced power output in coal fired power generation. The results, if the maximum output was declined as 29 [%] to overall coal-fired power plant, system marginal price is reduced 12 [%p] compared to before and decreasing greenhouse gas emissions were 9,966 [kton]. And if the low efficiency coal fired power plant that accounted for 30 [%] in overall coal-fired power plant stopped by year, system marginal price is reduced 14 [%p] compared to before and decreasing greenhouse gas emissions were 12,874 [kton].

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The 3 Step Expansion Strategy and Configuration of Smart Grid Station (스마트그리드 스테이션의 구성과 3단계 확산 전략)

  • Kim, Kun-Sung;Hwang, Woohyun;Yang, Chung-Ho;Geum, Dong-Jin;Kim, Suk-Cheol;Lee, Jung-ho;Seo, Jung-il
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.35-36
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    • 2015
  • 21세기 들어 지구온난화 현상이 심각해지면서 세계 각국의 온실가스 감축 노력이 추진되고 있다. 특히, 2005년 2월에 공식 발효한 교통의정서(Kyoto Protocol)에서 온실가스 배출에 실질적인 책임이 있는 38개 선진국을 대상으로, 2012년까지 1990년의 온실가스 배출량 대비 평균 5.2%의 감축을 의무화 한 것이다. 한국 정부 또한 2009년 11월 온실 가스 감축목표를 2020년 배출전망치(BAU : Business As Usual) 대비 30%로 결정하고 저탄소 녹색성장기본법에 명시하는 등 국제적 감축 행렬에 동참하였다. 한국 정부는 2009년 12월부터 2013년 5월까지 42개월간 제주도에서 스마트그리드 실증사업을 시행하였다. 본 논문에서는 제주 실증단지에서 개발된 기술을 이용하여 건물단위 에너지 통합관리를 할 수 있는 시스템으로서 스마트그리드 스테이션을 개발하여 현장에 적용하였고 이를 활용한 확산방안을 제시하고자 한다.

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A Study on the Evaluation to Greenhouse Gas Emission from Sewage and Wastewater Treatment Plants (하ㆍ폐수처리시설에서의 온실가스 배출량 평가)

  • 전의찬;서경애;노기환;사재환
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.425-426
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    • 2003
  • 지구온난화현상은 1980년대 들어서 급격한 기후의 변화와 이상난동 등의 기상이변이 발생하면서 세계적인 관심사로 대두되었다 전 지구적으로 온실가스의 배출량은 증가하고 있어, 이를 대처하기 위하여 1992년 브라질 리우에서 개최된 UN환경개발회의에서 기후변화협약을 체결하게 되었고, 특히 1997년 12월에는 일본의 교토에서 개최된 제3차 기후변화협약 당사국총회에서 선진국들은 1990년을 기준으로 2008 - 2012년간 온실가스를 평균 5.2% 감축하도록 하는 교토선언을 결정하였다. (중략)

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LMDI Decomposition Analysis on Characteristics of Greenhouse Gas Emission from the Line of Railroad in Korea (LMDI 분해 분석을 이용한 국내 철도 노선별 온실가스 배출 특성 분석)

  • Lee, Jae-Hyung;Lim, Jee-Jae;Kim, Yong-Ki;Lee, Jae-Young
    • Journal of the Korean Society for Railway
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    • v.15 no.3
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    • pp.286-293
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    • 2012
  • Korean government is enforcing 'Greenhouse gas target management' in order to achieve Greenhouse gas reduction target. To attain Greenhouse gas reduction target, companies in Korea must establish their GHG inventory system and analysis their GHG emissions characteristics for deduction of mitigation measures. LMDI(Log Mean Divisia Index) decomposition analysis is widely used to understand characteristics of GHG emission and energy consumption. In this paper, the characteristics of GHG emission from the line of railroad in Korea is respectively analyzed in terms of conversion effect, intensity effect, production effect and distance effect. Data of railroad GHG emission from 2000 to 2007 are used. As a result, total effect of railroad's GHG emission is $96,813tCO_2eq$. Production effect ($39,865tCO_2eq$) and distance effect ($327,923tCO_2eq$) affect increase of railroad GHG emissions while Conversion effect ($-158,161tCO_2eq$) and intensity effect ($-112,814tCO_2eq$) influence decrease of the emissions.

POLICY & ISSUES 기획특집_4 - 기후변화대응 녹색기술의 현주소와 미래

  • Kim, Ju-Yeong
    • Bulletin of Korea Environmental Preservation Association
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    • s.399
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    • pp.20-21
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    • 2012
  • 우리나라는 좁은 국토에 많은 인구가 밀집한 관계로 단위면적당 폐기물의 발생량이 세계 최고 수준이며, 해양 오염 방지를 위해 유기성 폐기물 해양 배출을 금지한 런던협약 등 기후변화 관련 규제가 강화되고 있다. 또한 화석연료의 고갈화로 대체에너지 개발이 시급한 현시점에서 폐자원 에너지화 사업의 인프라 구축 및 대응책 수립이 요구되고 있다. 이에 우리나라는 2008년 5월 "폐기물 에너지화 종합대책" 이후 2009년 7월 "폐자원 및 바이오매스 에너지 대책" 실행계획 수립으로 폐기물 에너지화 사업 도입을 적극 추진하고 있다. 폐자원 에너지화 기술은 화석연료 대체로 인한 온실가스 감축효과가 있어 폐기물 처리, 화석연료 대체, 온실가스 감축이라는 일석삼조의 기술이다.

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Life Cycle Greenhouse Gas Emission Assessment on Locally Generated Kenaf Residue Biomass Fuel in South Korea (EU RED-II 방법론을 적용한 국내 미이용 바이오매스 케나프 펠릿의 전과정 온실가스 배출량 산정)

  • Youn Il Kim;Sun Young Jung;Youngjae Jo;Sung Yoon;Byung Hwan Um
    • Korean Chemical Engineering Research
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    • v.61 no.2
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    • pp.258-264
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    • 2023
  • The greenhouse gas (GHG) emission assessment of kenaf pellet, produced from locally generated kenaf residues in South Korea, has been studied based on the EU RED-II methodology for calculating GHG impact of biomass fuels. Based on the production pathway of kenaf residue pellet and emission coefficients from EU JRC report, the life cycle GHG emission of kenaf residue pellet is assessed as 3.0 gCO2eq/MJpellet and the life cycle GHG emission of electricity generated from kenaf residue pellet is assessed as 11.9 gCO2eq/MJ when electrical efficiency of final conversion is 25%. The potential GHG emission reduction of electricity produced from kenaf pellet is 90.3% compared to the domestic electricity emission factor 42.8 kgCO2eq/MWh. Also, the electricity produced from kenaf pellet can reduce at least 59.6% of GHG emission compared to the electricity produced from imported wood pellets.

Allocating CO2 Emission by Sector: A Claims Problem Approach (Claims problem을 활용한 부문별 온실가스 감축목표 분석)

  • Yunji Her
    • Environmental and Resource Economics Review
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    • v.31 no.4
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    • pp.733-753
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    • 2022
  • Korean government established the Nationally Determined Contribution (NDC) in 2015. After revising in 2019, the government updated an enhanced target at the end of last year. When the NDC is addressed, the emission targets of each sector, such as power generation, industry, and buildings, are also set. This paper analyzes the emission target of each sector by applying a claims problem or bankruptcy problem developed from cooperative game theory. The five allocation rules from a claims problem are introduced and the properties of each rule are considered axiomatically. This study applies the five rules on allocating carbon emission by sector under the NDC target and compares the results with the announced government target. For the power generation sector, the government target is set lower than the emissions allocated by the five rules. On the other hand, the government target for the industry sector is higher than the results of the five rules. In other sectors, the government's targets are similar to the results of the rule that allocates emissions in proportion to each claim.

Improvement of EIA Associated with Greenhouse Gases Subject Matter for the Preparedness of Post-2020 (Post-2020에 연계한 온실가스 항목의 환경영향평가 개선 방안)

  • Hong, Sang-Pyo
    • Journal of Environmental Impact Assessment
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    • v.28 no.5
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    • pp.483-491
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    • 2019
  • In orderto cope with the post-2020 in accordance with the Paris Agreement, greenhouse gas (GHG)reduction in Environmental Impact Assessment (EIA) and its contributions to post-2020 were discussed. The 26 Environmental Impact Statement (EIS) administered by Geum-River Basin Environmental Office from 2010 to 2019 were analyzed for reviewing GHG mitigation measures. From the case study, it was found that the assessment of GHG emissions reduction and climate change adaptation were not appropriately performed. In this study, the following measures are proposed to improve the inappropriate assessment of 'GHG subject matter' associated with EIA according to post-2020, 1) allotment of enforced charge on GHG emission during the EIA process, 2) addition of the 'GHG subject matter' in 'establishing permissible discharge standards' which is based on "Act on the Integrated Control of Pollutant-discharging Facilities", and 3) the participation of stakeholders in early EIA stage for governance. Also the details on the EIA for the preparedness of post-2020 were discussed here.

Evaluation of Greenhouse Gas Emissions for Life Cycle of Mixed Construction Waste Treatment Routes (혼합 건설폐기물 처리경로별 전과정 온실가스 발생량 평가)

  • Kim, Da-Yeon;Hwang, Yong-Woo;Kang, Hong-Yoon;Moon, Jin-Young
    • Resources Recycling
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    • v.31 no.1
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    • pp.56-64
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    • 2022
  • Construction waste is generated at a rate of approximately 221,102 tons/day in Korea. In particular, mixed construction waste generates approximately 24,582 tons/day. The other components were recycled by 98.9%. The amount of greenhouse gas emissions from the waste was 17.1 million tons of CO2 equaling 2.3% of the total greenhouse gas emissions. To reduce greenhouse gas emissions, reducing the environmental impact is becoming increasingly important. However, appropriate treatment must first be established, as mixed construction waste is also increasing. Thus, an effective plan is urgently needed because it is frequently segregated and sorted by the landfill and incinerated. In addition, there is an urgent need to prepare various effective recycling methods rather than a simple treatment. Therefore, this study analyzed the environmental impact of the treatment of mixed construction waste by calculating greenhouse gas emissions. As a result, the highest greenhouse gas generation occurred during the incineration stage. Moreover, the optimal method to reduce greenhouse gas emissions is recycling and energy recovery from waste. In addition, the amount of greenhouse gas generated during energy recovery from the waste stage was the second highest. However, greenhouse gas emissions can be reduced by using waste as energy to reduce fossil fuel consumption. In addition, for the transportation stage, the optimal reduction plan is to minimize the amount of greenhouse gas emissions by setting the optimal distance and applying biofuel and electric vehicle operations.