• Title/Summary/Keyword: CO2 배출

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Estimation and Comparison of Regional Environmental Kuznets Curves for CO2 emissions in Korea (국내 지역별 이산화탄소 배출에 대한 환경 쿠즈네츠 곡선 추정 및 비교)

  • Lee, Gwang Hoon
    • Journal of Environmental Policy
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    • v.9 no.4
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    • pp.53-76
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    • 2010
  • This paper attempts to estimate and compare environmental Kuznets curves (EKC) for$CO_2$ emissions of five regions constituting South Korea. For this, panel data of $CO_2$ emission for these regions are constucted for the period 1990 - 2007. Close inter-dependency among these five regions is considered by using a seemingly unrelated regression (SUR) model. In addition to real per-capita income, price index of energy sources and population dens ity are included as control variables. Results of estimates show the robust existence of EKC's in all these regions. EKC turning points of five regions range between 13.7 and 21.6 million Korean Won, showing a large variation. This difference among regions should be conisidered for the effective implementation of policies targeting the reduction of $CO_2$ emmission. In addition, the increase of energy price is found help reduce the $CO_2$ emmision while the rise of population density seems to lead to the increase of $CO_2$ emission.

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A Study on the EU Emissions Trading Schemes (EU의 탄소배출권 거래제도에 관한 연구)

  • Pak, Myong-Sop;Hong, Ran-Ju;Hur, Yun-Seok
    • International Area Studies Review
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    • v.12 no.2
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    • pp.297-324
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    • 2008
  • As greenhouse gas (hereinafter GHGs) emissions have been increasing, the world's climate is also rapidly changed. $CO_2$ is the most important artificial GHGs and the annual emissions amount was increased approximately 80% between 1970 and 2004. After suggesting Kyoto Protocol, EU is the second largest emissions embodiment in the world, set the emissions trading scheme (hereinafter EU-ETS) and is trying to reduce $CO_2$ emissions aggressively. This study focuses on the EU-ETS and EU-ETS market to examine their emissions reduction policy and review the result of their efforts. EU-ETS which is composed of 2-step phases had already completed the first phase and is running on the second phase in 2008. Up to now EU-ETS has been proceeding successfully and the amount of $CO_2$ emissions has been decreased. To prepare for their coming events, countries excluded from Kyoto Protocol fulfillment need to have some implication from EU and have to make up their own plans.

Comparison of Greenhouse Gas Emission from Construction Equipment by Tier 2 and Tier 3 Methodologies (건설기계의 Tier 2와 Tier 3 방법론에 의한 온실가스 배출량 비교)

  • Shin, Yong Il;Kim, Jeong;Kim, Pil Su;Chung, Chan Kyo;Jang, Young Kee
    • Journal of Climate Change Research
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    • v.1 no.1
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    • pp.13-20
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    • 2010
  • Recently, the operation of construction equipments have increased by many construction project. So a respectable amount of greenhouse gas is expected from construction equipments. But the greenhouse gas emissions from construction equipment have been high uncertainty due investigation of a lack of activity data and emission factors in Korea. In this study, annual greenhouse gas emissions from construction equipment are estimated by IPCC's Tier 2 and Tier 3 method. These methods require emission factors, fuel consumption, average kilowatts and operating hours. As the results, the nationwide emission from construction equipments by Tier 2 and Tier 3 are calculated as $21,784kton-CO_2eq/year$ and $22,811kton-CO_2eq/year$ in 2008.

Relationship between $CO_2$ emission and fuel consumption rate according to used fuels at driving mode (주행모드에서 사용연료에 따른 자동차의 $CO_2$ 배출특성과 연료소비율의 상관관계 비교 분석)

  • Kim, Yong-Tae;Lee, Ho-Kil;Kang, Jeong-Ho;Han, Sung-Bin;Chung, Yon-Jong
    • Journal of Energy Engineering
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    • v.17 no.4
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    • pp.227-232
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    • 2008
  • Carbon dioxide is considered a major greenhouse gas that contributes to global wanning. $CO_2$ is a major component of the exhaust in the combustion of any hydrocarbon fuel. The regulation for $CO_2$ emission from vehicles has become much more stringent in recent years. These more stringent regulations require vehicle manufacturers to develop alternative fuels that reduce exhaust emissions. This paper evaluated the correlation of $CO_2$ emission and fuel economy in the Gasoline, Diesel, and LPG vehicles according to FTP-75 and NEDC(ECE15+EUDC) driving mode. From this study, we discovered that the decrease rate of $CO_2$ emission is higher for fuels of lower carbon concentration. When the relationship between $CO_2$ emission and fuel consumption rate according to used fuels is expressed as a function, one can find out that they have a high correlation. LPG vehicles produce less $CO_2$ emission than gasoline and diesel vehicles.

An analysis on CO2 emission of structural steel materials by strength using Input-Output LCA (산업연관분석법을 이용한 강도에 따른 구조용 강재의 이산화탄소 배출량 데이터 구축)

  • Hong, Tae-Hoon;Ji, Chang-Yoon;Jang, Min-Ho
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.4
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    • pp.132-140
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    • 2012
  • Along with the increasing interest in environmental problems such as global warming, the South Korean government has established policies and regulations to reduce the amount of greenhouse gases, targeting a 30% reduction of $CO_2$ compared to business-as-usual levels by 2020. Thus, there have been many studies in construction field to control and reduce the amount of $CO_2$ emitted from buildings. $CO_2$ emission from the building construction could be obtained by using the life cycle assessment(LCA) methodology. In LCA, it is essential to have life cycle inventory(LCI) data of construction materials consisting of $CO_2$ emission data that have been defined and examined in a detailed way in order to obtain more accurate and detailed $CO_2$ emission of buildings. To date, however, the LCI data have been acquired only for the representative materials. Accordingly this study aimed to propose detailed $CO_2$ emission data for steel rebar and H-beam, which are the essential structural steel materials, by strength and type. To accomplish the objective, this study used Input-Output LCA methodology which is based on the Input-Output table. It is believed that the $CO_2$ emission data of steel materials acquired from this study would allow a more accurate assessment of $CO_2$ emission for diverse structural design alternatives.

The Changes in Carbon Stocks and Emissions Assessment of Harvested Wood Products in Korea (우리나라의 수확된 목제품 탄소축적 변화량 및 배출량 평가)

  • Choi, Soo Im;Kang, Hag Mo
    • Journal of Korean Society of Forest Science
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    • v.96 no.6
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    • pp.644-651
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    • 2007
  • This study compared and estimated the changes in carbon stocks and emissions of harvested wood products (HWP) by applying FAO statistics and domestic statistics for Korean HWP production, import, and export volume, which is almost always supposed to be included in the carbon emissions and removals inventory by country in negotiations since the 2nd commitment period (2013~2017) of the Kyoto Protocol, for assessing the changes in carbon stocks and emissions of HWP. As a result, when applying FAO statistics to the changes in carbon stocks of HWP as of 2005, stock-change approach (SCA) was estimated at 1.434 Tg C, atmospheric-flow approach (AFA) -1.330 Tg C, and production approach (PA) 0.597 Tg C. When applying Korean statistics, SCA was estimated at 1.246 Tg C, AFA -11.520 Tg C, and PA 0.444 Tg C. When applying FAO statistics to $CO_2$ emissions and removals from HWP, SCA showed a decrease of $-5,258Gg\;CO_2$ (removals), AFA showed an increase of $4,877Gg\;CO_2$ (emissions), and PA showed a decrease of $-2,189Gg\;CO_2$ (removals). When applying Korean statistics, SCA showed a decrease of $-4,569Gg\;CO_2$ (removals), AFA showed an increase of $5,573Gg\;CO_2$ (emissions), and PA showed a decrease of $-1,628Gg\;CO_2$, (removals). Therefore, the application of FAO statistics was shown to be more beneficial for the estimation of both the changes in carbon stocks and emissions of HWP by all methods other than that of Korean statistics.

A Study on the Inventories for Greenhouse Gas ($CO_2$) Chemical Industry ; A case of Ulsan City, Korea (화학산업 온실가스($CO_2$) 인벤토리 구축에 관한 연구)

  • Ahn, Jun-Ki;Cho, Kyoung-O;Lee, Man-Sig
    • Proceedings of the KAIS Fall Conference
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    • 2010.11a
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    • pp.483-487
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    • 2010
  • 본 연구는 기후변화협약 대응을 위한 울산광역시 사례로 화학 산업의 온실가스 인벤토리 구축 및 공정진단을 통해 온실가스 배출 저감 결과를 나타내었다. 또한 기업체의 기후변화 대응에 대한 방향을 제시하였다. 울산지역은 산업단지 중심으로 석유화학, 자동차, 조선 등 에너지 다소비업체가 많으며, 이산화탄소 배출 저감을 체계적으로 실시 할 경우 국가적 차원에서 이산화탄소 배출량을 상당히 줄일 수 있을 것으로 판단되어 10개 기업체 대상으로 본 연구를 실시하였다. 온실가스 배출량은 최종에너지를 기준으로 산정한 경우 2004년 58,533천 톤 $CO_2$이며, 동일 년도 전국 온실가스 배출량인 592,600천톤 $CO_2$의 약 10%를 차지한다. 향후 2013년부터 한국이 2차 의무감축대상국이 될 경우 1990년도 온실 가스 배출 대비 5.2%의 감축률을 부여 받는다는 가정으로 경제적 손실액을 추정한 결과, 울산시의 경제적 손실은 1조에 가까운 것으로 나타났다. 따라서 울산지역은 최종 에너지소비가 2004년도에 전국 대비 12.5%로 매년 상승하고, 특히 2004년 1인당 최종에너지 소비의 경우 전국 평균은 3.38TOE이며, 울산시는 19.05TOE로 약 6배로 상당히 높게 나타났다. 또한 에너지 소비는 전국적인 규모로 비교하여 볼 때 점진적으로 증가하는 추세를 보이고 있다. 2003년의 경우 전국에너지 소비의 12.3%를 점유 하였던 것이 2010년에는 239.18백만 TOE로써 전국에너지 사용량의 14%를 점유 할 것이며, 점차 증가할 것으로 예상된다. 따라서 산업부문에서 에너지 사용비율이 80%이상으로 전국대비 에너지사용량이 상대적으로 높은 울산지역에서는 산업부문에서 온실가스발생량이 상당히 높은 것으로 예상 된다. 10개 기업체 중 5개 기업체의 온실가스 배출량 산정 및 인벤토리 구축 결과 온실가스 배출량의 공정에 따른 직접배출이 높은 것을 알 수 있었다. 또한 에너지 및 온실가스 저감을 위해 올 해 약 온실가스저감 227,554만원 경제적 효과가 나타났다. 또한 온실가스 이산화탄소 50,740 Ton/yr 절감효과를 발생하였다.

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A Case Study on CO2 Uptake of Concrete owing to Carbonation (콘크리트 탄산화에 의한 CO2 포집량 평가의 사례연구)

  • Yang, Keun-Hyeok;Kim, Sang-Chel
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.1 no.1
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    • pp.42-48
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    • 2013
  • The present study assessed the amount of $CO_2$ uptake owing to concrete carbonation through a case study for an apartment building with a principal wall system and an office building with Rahmen system under different exposed environments during use phase and recycling application. The $CO_2$ uptake assessment owing to concrete carbonation followed the procedure established by Yang et al. As input data necessary for the case study, actual surveys conducted in 2012 in Korea, which included data about the climate environments, $CO_2$ concentration, lifecycle inventory database, life expectancy of structures, and recycling activity scenario, were used. From the comparisons with the $CO_2$ emissions from concrete production, the $CO_2$ uptake during the lifetime of structures was estimated to be 5.5~5.7% and that during recycling activity after demolition was 10~12%; as a result, the amount of $CO_2$ uptake owing to concrete carbonation can be estimated to be 15.5~17% of the $CO_2$ emissions from concrete production, which roughly corresponds to 18-21% of the $CO_2$emissions from cement production as well.

Method for the evaluation of Unit Load of Road­-Section CO2 Emission Based on Individual Speed Data (개별 속도자료기반 도로구간 CO2 배출량 원단위 산정 방안)

  • Park, Chahgwha;Yoon, Byoungjo;Chang, Hyunho
    • Journal of the Society of Disaster Information
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    • v.13 no.1
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    • pp.96-105
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    • 2017
  • Global warming, mainly caused by CO2, is one of the on­going cataclysms of the human race. The nation­wide policy to reduce greenhouse gases (GHG) has been enforced, for which it is crucial to estimate reliable GHG emissions. The unit load of road­section CO2 emission (URSCE) is a prerequisite for the evaluation of GHG emissions from road mobile source, and it is mainly computed using vehicular velocity source. Unfortunately, there is real­world limitations to collect and analyse representative speed data for nation­wide road network. To tackle this problem, a method for the evaluation of URSCE, proposed in this study, is based on a disaggregated way using big GPS vehicle data. The method yields more accurate URSCE than an current aggregated data based approach and can be directly employed for nation­wide road systems.

A study on calculating emission $CO_2$ and Analysis Logistics Cost in inland transportation (운송수단별 내륙운송의 $CO_2$ 배출량 산출 및 비용분석)

  • Kim, Hwan-Seong;Jo, Min-Ji
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2009.10a
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    • pp.11-13
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    • 2009
  • As the quantity of goods transported, port industry and inland transport industry have developing still, but almost 80% of inland transport industry consists of ground transport. According to issue "global warming", many regulations and agreements with countries in the world are becoming necessary and it is being fulfilled now. It is sure that Korea will have duty to reduce CO2 emission from 2013. And inland transport have to cut CO2 emission down. Therefore, this paper will address that calculate CO2 emission under route of transportation container at Korea by using O/D analysis. And then, it will predict routes of transportation containers which can reduce CO2 emission.

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