• 한국공작기계학회논문집
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• 제16권3호
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• pp.56-63
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• 2007

Modern diesel vehicle has to comply with the EURO IV, V regulation with low level of particulate matter and smoke emission Moreover, emission standards of each countries are becoming stringent in advanced countries such as USA and Europe. Because Bio-diesel is similar to diesel fuel, it is essential to judge the environmental and health effects deriving from the use of Bio-diesel in diesel engine. The deterioration characteristics of emission in accordance with aging vehicles must be regulated for Bio-diesel. Therefore, under 1200 driving hours, 220,000km driving distance condition and full load, the deterioration characteristics of emission were estimated. We could reduce sulfur contents of fuel, particulate matter and smoke emission by using Bio-diesel and conform the influence of engine performance, emission, and fuel consumption by Bio-diesel deterioration

• 한국대기환경학회지
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• 제15권3호
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• pp.317-325
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• 1999

The demand of diesel engine on the construction equipment has been rapidly increased because of high thermal efficiency and fuel economy. The exhaust emission from nonroad vehicles equipped with diesel engine such as construction equipment, ship, and agricultural equipment, etc. Which are known to be harmful to human health and environment, has not been regulated in our country. But the regulation for nonroad vehicle has been already progressed in advanced country. So we investigated the contribution ratio of air pollution by construction equipment in order to establish the exhaust emission management strategy for nonroad vehicle. Based on the statistical data for construction equipment, 5 kinds of equipment are selected and tested in the engine dynamometer to determine the emission factor. And the amount of air pollutant from construction equipment are calculated by using of the emission factor and recommended exhaust emission standard for construction equipment.

• 환경정책연구
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• 제12권2호
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• pp.59-86
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• 2013

1988년부터 2008년까지의 자료를 바탕으로 우리나라 6개 권역을 대상으로 권역별 소득, 환경규제, 오염유발원이 각 권역별 대기오염 물질(황산화물, 질소산화물, 총먼지, 일산화탄소)에 미치는 영향을 지역적 관점에서 살펴보았다. 즉, 환경 쿠즈네츠 곡선(EKC)가설 검증차원에서 공해배출과 경제성장 간의 관계를 패널회귀분석을 통해 분석하였다. 분석 결과, 산업시설에 영향을 미치고 있는 황산화물(SOx)의 경우 대부분의 권역에서 EKC가설이 성립하는 것으로 나타났지만, 질소산화물(NOx)과 총먼지(TSP)의 경우 6개 권역 중 대경권에서만 EKC가설이 성립하는 것으로 나타났 으며, 일산화탄소(CO)의 경우에도 EKC가설을 충족시키는 권역은 중부권, 호남권, 동남권에 한정되어 있었다. 또한 각 권역별 대기오염 단속규제가 대기오염과 정(+)의 관계를 보임에 따라 환경규제효과가 나타난다고 보기 어려우며, 각 권역별 연료소비와 석유화학제품의 특화 또한 권역별 대기오염을 증가시키는 주요 요인으로 작용하고 있다.

• 한국자동차공학회논문집
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• 제19권4호
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• pp.121-129
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• 2011

Hydrocarbons which are the main sources of VOCs from motor vehicles are emitted not only from the engine exhaust gas but also from evaporation of the fuel in storage and supplying systems. Evaporative emissions from gasoline fuel systems could be classified by diurnal, hotsoak and running loss. Diurnal loss test procedures are different as countries. Korea introduced new evaporative regulation in 2009 with 24hour VT-shed test procedure and relaxed emission standards. The estimations on different test procedures in this study show that the new Korean regulation get a little more severe than before and the 2 day diurnal loss test of U.S. is the most severe. So the test procedures as well as the stronger standards should be considered in the next evaporative emission regulation to reduce VOCs from motor vehicles. The important parameters to affect evaporative emissions are air and fuel temperature and fuel vapor pressure. Diurnal loss increases exponentially as rising air temperature and vapor pressure. The effects of vapor pressure on running loss are different as the capacities of canisters. Tests with simulating real temperature and driving conditions show that hydrocarbons in evaporative emissions could be more than those in exhaust gas in summer season because of the higher air temperature.

• 한국기후변화학회지
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• 제5권4호
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• pp.331-338
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• 2014

The continued efforts to reduce GHG emission by international cooperation and each country are in progress. As part of these efforts, Korea's ETS is enforced in 2015. This was the time to make strategies for each company to respond Korea's ETS. This study was performed to suggest a draft of basic strategies for electronic component industry in current Korea's ETS stage are as follows; - Analyzing the nature of electronic component industry - Identifying needs for corresponding ETS of electronic component industry - Analyzing basic countermeasures for each stage of ETS - Suggesting drafts of basic strategies for electronic component industry in current Korea's ETS stage The result of this study, the current stage of Korea's ETS is moving from implementation of the scheme become determined and prepare the minimum corresponding to direct corresponding to the regulation and market change. Electronic component industry has many GHG emission growth(or change) factor, and it will be make electronic component industry as a buyer when Korea's ETS is enforced. Korea's ETS will be clearly act as a regulation rather than new business for electronic component industry. Therefore, identifying the Korea's ETS as a regulation is resonable strategy for corresponding the scheme. The basic strategies of electronic component industry th responding Korea's ETS are as follows; - Building internal organization and decision-making system before enforcement the Korea's ETS - Establishing internal basic corresponding strategies according to carbon price forecast scenarios - Considering the energy consumption and GHG emissions in design phase and preparing the global ETS market in mid or long term.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2011년도 전기공동학술대회 논문집
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• pp.23-25
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• 2011

• 한국생산제조학회지
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• 제9권1호
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• pp.53-59
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• 2000

Recently air pollution is increased according to increase of vehicle. So many countries are studying about compressed natural gas engine. Research on the development of CNG dedicated engine that has important meaning both as a clean fuel and an alterna-tive energy to reduce the exhaust emission from diesel engine are actively going on these days. In this study the character-istics of CNG engine was investigated and the engine performance experimented by changing the parameters such as boost pressure. The CNG engine performance and exhaust emission were measured by engine performance mode at maximum load condition with increasing the rpm in the range of 1,000-2,200rpm. The exhaust emission was also measured at D-13 mode and compared to the emission regulation.

• 자원ㆍ환경경제연구
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• 제10권1호
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• pp.65-93
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• 2001

This study provides allocation methods and transaction instances of introducing pilot projects of $SO_2$ emission trading that recently rises as an scheme for effective emission regulation to internalizing environmental externalities. The emissions caps that is the total endowment of $SO_2$ emission permits are calculated in each emission plant by considering methods for distributing those permits-by giving them away or by selling them at auction. The method adopted in this study has several defects in application of the reality. However, this study may have contributions to cognize the importance of, allowance trading among the participants and to firstly design the allocations of emission permits for each plant using real emission data.

• 한국환경과학회지
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• 제17권4호
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• pp.423-437
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• 2008

Until comparatively lately, the annual time series of the $SO_2$ concentration had been shown in a decreasing trend in Ulsan as well as other Korean cities. However, the high concentration of $SO_2$ was frequently found in the specific countermeasure region including the national industrial complex such as Mipo and Onsan in the Ulsan city for the period of $2001{\sim}2004$. There are many conditions that can influence the high concentration of $SO_2$ at monitoring sites in Ulsan, such as: First, annual usage of the fuel including sulfur increased in comparison with the year before in spite of the fuel conversion policy which wants to use low sulfur oil less than 3% and LNG. Second, point source, such as the power plants and the petroleum and chemistry stacks, was the biggest contributor in $SO_2$ emission, as a analyzed result of both the air quality modeling and the stack tole-monitoring system (TMS) data. And third, the air pollutants that occurred in processes of homing and manufacturing of the fuel including sulfur were transported slow into a special monitoring site by accumulating along the frontal area of see-breeze. It was concluded that Ulsan's current environmental policy together with control methods should be changed into the regulation on total amount of emission, including a market-based emission trading with calculating of atmospheric environmental critical loads, for the $SO_2$ reduction like the specific countermeasure for the $O_3$ and PM10 reduction in the Seoul metropolitan area. And this change should be started in the big point sources of $1{\sim}3$ species because they are big contributors of Ulsan's $SO_2$ pollution. Especially it is necessary to revitalize of the self-regulation environmental management. Other control methods for sustaining the $SO_2$ reduction are as follows: maintenance of the fuel conversion policy, reinforcement of the regional stationary source emission standard, and enlargement of the stack TMS.

• 한국건설관리학회논문집
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• 제18권1호
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• pp.74-82
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• 2017

2011년부터 온실가스 에너지 목표관리제와 같은 국가적 온실가스 감축 규제가 대학에도 적용되기 시작하면서 2000년대 급속한 증가를 보이는 것으로 알려졌던 대학의 온실가스 배출량은 2011년 이후 안정세 및 하락세를 보여 오고 있다. 따라서, 온실가스 배출 규제의 시행을 계기로 대학사회가 온실가스 에너지에 대한 관리를 강화하고 있고 그 효과가 나타나고 있다고 이야기할 수 있게 되었다. 특히, 보다 강력한 제도적 속성을 지닌 배출권거래제 시행 준비 시기에는 총량이 줄어드는 결과를 보이는 등 온실가스 다배출 대학을 중심으로 감소하는 추세로 전환되었다고 평가할 수 있다. 본 연구에서는 개별 대학의 온실가스 감축 활동을 세부적으로 추적하지는 않았지만 온실가스 배출에 영향을 끼치는 주요 활동도 자료를 분석하였고, 그 결과 대학의 온실가스 배출이 2011년 이전에는 연구수혜액, 그리고 2013년 이후에는 연면적의 변화가 영향을 주는 것을 확인하였다. 이에, 향후 대학의 온실가스 감축 목표 설정 원단위는 연면적을 기준으로 하는 것이 바람직하다고 판단되며, 보다 체계적인 대학의 온실가스 감축을 지원하기 위한 면적 단위 온실가스 배출량의 기준 수립과 관련 정보 공유가 필요하다고 할 수 있다.