• 한국대기환경학회지
• /
• 제27권1호
• /
• pp.41-49
• /
• 2011

The power plants are one of the GHG major source among the sectors of fossil fuel combustion, therefore information of its emission factors is very essential to the establishing control strategies for the greenhouse gas emissions. The $CH_4$ and $N_2O$ concentration from power plants were measured using GC-FID and GC-ECD. The results showed that $CH_4$ emission factor was 0.33 kg/TJ and $N_2O$ emission factor was 0.88 kg/TJ. The $CH_4$ and $N_2O$ emission factors developed in this study were compared with those for IPCC default value and other countries emission factors. The results showed that $CH_4$ emission factor was lower than IPCC default value and Finnish emission factor, but higher than Japanese emission factor. $N_2O$ emission factor was higher Japanese emission factor and IPCC default emission factor however lower than Finnish emission factor. More research is needed on our own emission factors of various energy-consuming facilities in order to stand on a higher position in international negotiations regarding the treaties on climate changes.

• 환경정책연구
• /
• 제8권1호
• /
• pp.1-30
• /
• 2009

교토의정서에서 저비용의 온실가스 저감 방안으로 도입된 온실가스 배출권 거래제도는 현재 유럽 배출권 거래 제도를 포함하여 다양한 규모와 지리적 범주를 가진 시장이 운영되고 있으며 우리나라를 비롯한 여러 국가에서 새로운 배출권 거래제도 도입을 계획하고 있다. 본 연구의 목적은 교토의정서를 기반으로 하는 배출권 시장과 자발적 배출권 시장에서 산림 관리 활동의 역할과 인정 범위를 조명하고, 국내 배출권 시장의 도입에 있어 산림부문 참여의 필요성을 고찰하는 것이다. 이를 위해 유럽연합 배출권 거래제도, 시카고 기후 거래소, 뉴사우스웨일즈 온실가스 감축제도, 지역 온실가스 이니셔티브의 사례를 분석하여 각 배출권 시장에서의 산림 흡수원 배출권의 역할과 인정범위를 분석하였다. 국내 배출권 시장에 있어 산림 흡수원 배출권의 포함은 비용절감과 감축활동 참여확대라는 이점과 함께 기술적 복잡성과 직접 감축노력의 감퇴라는 위험요소를 가진다. 하지만 위험요소에 대한 다양한 해법이 제시되고 있고 향후 기후변화협약 하에서 산림 흡수원의 범위와 규정에 대한 변화가 예상되며 국내 현실에서 온실가스 감축을 위한 다양한 접근이 필요한 만큼 산림 흡수원 배출권은 배출권 시장의 한 요소로 포함되어야 할 필요가 있다. 산림분야에 있어서 산림 흡수원 사업의 참여는 산업영역의 확대와 산림관리 재원의 마련이라는 기회를 제공하며 이러한 기회를 활용하기 위한 제도와 기술측면의 대비가 필요하다.

• 한국주거학회:학술대회논문집
• /
• 한국주거학회 2009년도 추계학술발표대회 논문집
• /
• pp.89-94
• /
• 2009

The purpose of this study is to provide a fundamental data for reducing energy consumption and greenhouse gas emission of detached houses by investigating the energy consumption characteristic of detached houses in Daegu. Although the ratio of the detached houses decreases, the detached houses are common dwelling form next to apartments. Nevertheless the study about the energy consumption of detached houses has been insufficient compared apartments. There is a necessity which will investigate the energy consumption characteristic of detached houses. Because that with the building quality which is various form is different from apartments. This study investigate construction and equipment conditions and analyzing effective factors on energy consumption of detached houses. And this study draw up the energy consumption unit and emission factors unit for greenhouse gas of detached houses. This study represent a basic report for energy consumption reduction and helps effective use of energy.

• 한국대기환경학회지
• /
• 제26권5호
• /
• pp.499-506
• /
• 2010

Recently, a great deal of attention have been directed to the use of alternative fuels as a means to reduce vehicular emissions. As one of the promising alternative fuels, bio-diesel has advantages of a wide adaptability without retrofit of diesel engine. It is also effective enough to reduce CO, THC, $SO_x$, polycyclic aromatic hydrocarbons (PAHs) and PM. In this study, we investigated the emission characteristics of biofuels between different operating conditions, i.e., engine speed (1,400 rpm and 2,300 rpm), engine load (10% and 100%), bio-diesel blending (BD0, BD5 and BD20), and recirculation (EGR) rate of exhaust gas (0% and 20%). Relative performance of the system was evaluated mainly for the greenhouse gases ($CH_4$, $N_2O$ and $CO_2$). In addition, emission characteristics of ND-13 mode were also tested against both greenhouse gases and other airborne pollutants under emission regulation. The relative composition of bio-diesel has shown fairly clear effects on the emission quantities of CO, THC, and PM emission, although it was not on $NO_x$ and greenhouse gases. EGR rate has shown trade-off characteristics between $NO_x$ and PM.

• Architectural research
• /
• 제19권4호
• /
• pp.95-99
• /
• 2017

Recently, it is becoming increasingly difficult to ignore carbon emission implication of building operations due to the significant rate of energy usage in buildings. In the building sector, our normal expectation implies that large building floor area induces more greenhouse gas (GHG) emission. In this research, the correlation between building total floor areas and GHG emission was explored by simple linear regression and analyzing the yielded residuals for confirming this seemingly obvious conjecture. By looking at the generated regression lines drawn based on the data sets representing public facilities in Ontario, Canada, we were able to confirm that carbon emission rate shows a proportional increase or decrease depending on the total floor area of buildings as has been implied as a conjecture. Some buildings were found to emit significantly large and small amount of GHG, and we addressed potential reasons why those buildings show the deviation from the confirmed proportional interrelation between a building's total floor area and the amount of GHG emission.

• 한국기후변화학회지
• /
• 제1권1호
• /
• pp.51-57
• /
• 2010

현재 이륜차는 도시에서 주요 이동수단으로 활용되고 있다. 그러나 국내에서는 이륜차 온실가스 배출량 산정에 있어 활동도 자료가 부족하고, 국내 배출계수가 부족하여 그 배출량 산정의 불확도가 큰 실정이다. 본 연구에서는 최근 조사된 50cc 미만의 이륜차(모페드)까지 고려하여 이륜차의 배기량별 연료 소비량을 추정하였다. 또한 최근 조사된 일 주행거리를 활용하여 IPCC 산출 방법론에 따라 Tier 2와 Tier 3의 배출량을 산출하여 비교하였다. 그 결과, 2008년도 전국 이륜차 운행에 의한 온실가스 배출량은 Tier 2와 Tier 3 산출 방법에 의해 각각 2,758천 $ton-CO_2eq/yr$, 2,739천 $ton-CO_2eq/yr$으로 산출되었으며, 이는 국내 수송 부문 온실가스 배출량의 약 2.7%에 해당하는 양으로 추정되었다.

• 환경영향평가
• /
• 제22권3호
• /
• pp.195-201
• /
• 2013

Local governments are establishing their own greenhouse gas reduction goal and are playing a important role to respond to climatic changes. However, there are difficulties in quantitative analyses such as estimation of future greenhouse gas emission and computation of reduction potential, which are procedures required to establish mid to long term strategies to realize of low carbon society by each local governments. Also, reduction measures must reflect characteristics of each local government, since the reduction power of each local government can differ according to characteristics of each. In order to establish strategies that reflect characteristics of local governments, types of greenhouse gas emission from cities were classified largely into residential city, commercial city, residential commercial city, agriculture and fishery city, convergence city, and industrial city. As a result of analyzing basic unit of greenhouse gas emission by local government during 2007 in terms of per population, household and GRDP based on the type classification, significant results were deduced for each type. To manage the amount of the national greenhouse gas, reduction measures should be focused on the local governments that emits more than the average of each type's GHG emission.

• 한국기후변화학회지
• /
• 제1권1호
• /
• pp.13-20
• /
• 2010

현재 건설기계는 산업발전과 건설공사의 증가에 따라 사용이 늘고 있다. 그러나 국내 건설기계 온실가스 배출량은 활동도 자료가 미비하고 국내 배출계수가 없어 불확실성이 큰 실정이다. 본 연구에서 최근 배출량 산정 방법(Tier 2, Tier 3), 배출계수, 연료 소비량, 평균 정격 출력, 가동 시간을 이용하여 배출량을 산정하였다. 그 결과 2008년도 건설기계의 온실가스 배출량은 Tier 2, Tier 3 산출 방법에 의하여 각각 21,784천 $ton-CO_2eq/yr$, 22,811천 $ton-CO_2eq/yr$으로 산출되어 Tier 3에 의한 배출량이 Tier 2에 의한 배출량보다 약 4.7% 크게 산정되었다.

• 한국기후변화학회지
• /
• 제4권1호
• /
• pp.27-39
• /
• 2013

본 연구에서는 국내에서 사용되는 무연탄을 국내무연탄, 원료용 수입무연탄, 연료용 수입무연탄으로 분류하여 각각의 발열량 및 온실가스 배출계수를 산정하였다. 본 연구에서 산정된 온실가스 배출계수는 국내무연탄이 $111,477{\pm}4,508kg\;CO_2/TJ$, 원료용 수입무연탄이 $108,358{\pm}4,033kg\;CO_2/TJ$, 연료용 수입무연탄이 $103,927{\pm}8,367kg\;CO_2/TJ$로 산정되었다. 산정된 배출계수를 이용한 온실가스 배출량은 $6,216,942ton\;CO_2$로 무연탄을 상세히 구분하지 않고 산정한 온실가스 배출량보다 12.7% 적게 나타났다. 이에 따라, 무연탄을 상세히 분류하여 활동자료를 수집하는 것이 무연탄의 활동자료를 통합하여 수집하는 것보다 정확한 온실가스 배출량을 산정할 수 있다고 판단된다. 또한, 국내에서 사용되고 있는 무연탄의 경우 IPCC에서 제시하고 있는 무연탄과 특성이 다르기 때문에 국가 온실가스 인벤토리 향상을 위해 무연탄을 용도별로 분류하여 산정해야 한다.

• 한국분무공학회지
• /
• 제25권1호
• /
• pp.34-39
• /
• 2020

Automotive manufacturers are applying technologies for greenhouse gas reduction such as vehicle weight reduction, engine downsizing, direct injection technology, variable valves and transmission performance improvement to achieve the targets for enhanced greenhouse gas and fuel consumption efficiency. In this paper, compared and analyzed greenhouse emissions according to engine capacity, engine displacement, curb weight and sales volume of hybrid and internal combustion engine passenger vehicles. Hybrid emit 32~39% less greenhouse gas than internal combustion engines through the combined mode test method. Hybrid electric vehicle's curb weight was about 7% heavier on average for the same engine displacement, while greenhouse gas was about 36% lower. It was confirmed that in order to reduce the emission of pollutants of greenhouse gases as well as the air pollutants, it is necessary to expand the supply of eco-friendly vehicles.