• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 추계학술대회
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• pp.203-208
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• 2009

Government and company are unfolding greenhouse gas reduction activity to prevent the effects of global warming. Also, verification business through greenhouse gas inventory construction is spreaded variously. Greenhouse gas verification proceeds by document examination, risk analysis, field survey. Document investigates emission information, calculation standard, emission report, data management system. And through risk assessment result, establish field verification plan. Through study on risk assessment of greenhouse gas inventory verification, wish to reduce risk of verification.

• 선박안전
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• 통권35호
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• pp.2-18
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• 2013

국내 원동기 배출허용기준 및 연료유 기준을 미국 및 유럽 등과 같이 일원화된 관리를 하기 위하여 대기환경보전법 개정이 되었다. 이에 따라 하위 법령 및 세부기준을 마련하기 위하여 국내외 관련 기준을 조사하고, 노후 선박용 원동기 시험을 진행하며, 선박 원동기 배출량을 산정하여 선박 원동기 배출허용기준(안)을 수립하고 기준 적용에 따른 규제 비용 및 편익 분석을 수행하였다.

• 에너지공학
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• 제25권4호
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• pp.74-84
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• 2016

2015년 미국 켈리포니아 주의 LEV3 배출가스 허용기준 도입과 함께 국내에서도 2017년부터 LEV 3에 준하는 가솔린 및 가스자동차 배출가스 허용기준이 적용될 예정이다. 이 기준에는 국내 배출가스 허용기준 모드가 FTP-75 모드뿐만 아니라 HWFET 및 SFTP(US06, SC03)를 추가할 예정이다. 대부분의 LPG 자동차는 국내에서 저공해자동차로 인증 받았다. 현재까지는 저공해자동차 등록을 위하여 FTP-75 모드의 허용기준만 만족하면 되었으나 LEV3 기준 부터는 추가된 3가지 모드의 허용기준이 추가될 것으로 판단된다. 본 연구는 LPG차량의 연료분사기술에 따라 LEV3 SULEV SFTP 허용기준 적합여부와 발전방향 제시를 위하여 8종의 LPG 차량과 4종의 가솔린 차량을 대상으로 FTP-75 모드 및 SFTP 모드 배출가스 시험을 실시하였다. 연구결과 최근 출시된 LPLi 1개 차종을 제외하고 SFTP 허용기준을 만족시키는 차량은 없었으며 이를 보완하기 위하여 연소분사 제어기술의 개선이 필요한 것으로 나타났다.

• 한국대기환경학회지
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• 제15권4호
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• pp.495-503
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• 1999

Airborne particulate matter $(PM_{10})$ collected using high volume air sampler and silica fiber filter were analyzed by Instrumental Neutron Activation Analysis(INAA), Inductively Coupled Plasma Atomic Emission Spectrometry(ICP-AES) and Atomic Absorption Spectrometry(AAS), and the results were compared with each other. 30~40 trace elements in environmental standard reference materials(NIST SRM 1648 and NIES CRM No.8) were analyzed for the analytical quality control. The relative error for two-third of elements detected was less than 10%, and the standard deviation was less than 15%. During the sampling period for 24 hours, the mass concentration of total suspended particulate was 36.1$\mu\textrm{g}$/㎥ and the value is lower than the critical level in Korea. In the results of NAA, the elements of Al, As, Ba, Fe, La, Mg, Na, Sb, Zn were well agreed with those of other methods. In statistical estimation between different methods, the deviation of Al, Ba, Cr, Fe was less than 10% and quite reliable.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2006년도 춘계학술대회
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• pp.527-530
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• 2006

Because price of fossil fuel rises, necessity about alternative energy was risen. Studied co-combustion of RPF to coal fluid bed boiler by necessity of these althernative energy. Purpose of this study to coal fluid bed bioler RPF when did co-combustion, change operating condition and characteristic of air pollutant examine according to change of fuel characteristic, operating condition examined about combustion chamber temperature, oxygen content etc. and air pollutant examined about material that is included to allowable exhaust standard and dioxin. Co-combustion condition was 5%. It was no peculiar under test result operating condition. Concentration of Co and HCl rose according as do RPF co-combustion and the other pollutants had hardly changed. Dioxin is low concentration level more than $0.1ng-TEQ/Sm^3$. There was no pollutant that exceed akllowable exhaust standard for boiler but $SO_x,\;NO_x$ were exceeded about allowable exhaust standard for incinerating facility.

• 한국건설관리학회논문집
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• 제17권3호
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• pp.52-60
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• 2016

본 연구에서는 LCA 모델을 이용하여 8개 초등학교 건축물의 생애주기 에너지사용량 및 이산화탄소 배출량을 평가 분석하였다. 이를 위하여, 자재생산, 자재운송, 시공, 운영, 해체 폐기단계를 포함하는 건축물 생애주기에서의 에너지사용량 및 이산화탄소 배출량을 평가할 수 있는 LCA 기반의 평가모델을 정의하고, 모델을 이용하여 사례 건축물을 평가하였다. 40년의 운영기간을 가정하여 평가한 결과, 내재에너지(즉, 자재생산, 자재운송, 시공단계 에너지사용량의 합), 운영에너지, 해체 폐기에너지는 평균적으로 2,279, 11,182, 228 Mcal/m2로 산출되었다. 각 단계별 평균 이산화탄소 배출량은 604, 2,708, 60 kg-CO2/m2로 산출되었다. 평가결과는 생애주기 에너지사용량 및 이산화탄소 배출량의 약 17%가 자재생산, 자재운송, 시공단계에서 발생한다는 사실을 보여준다. 따라서 건축물의 에너지사용량 및 이산화탄소 배출량 감축 목표를 달성하기 위해서는 내재에너지 및 이산화탄소 배출량이 반드시 고려되어야 할 것이다. 게다가, 운영에너지는 지역에 따라 확연하게 구분되는 반면, 내재에너지는 지역에 따른 차이가 없는 것으로 나타났다. 따라서 운영단계의 에너지 사용량 편차를 줄이기 위해서는 지역에 따라 보다 상세하게 구분된 단열 기준이 제시되어야 할 것이다.

• 한국물환경학회지
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• 제35권1호
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• pp.43-54
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• 2019

The objective of this study was to assess the effect of policies on water quality management based on the changes in pollutants and water quality in Special Water Preservation Area (SWPA) of Lake Paldang watershed from 1990 to 2016. The population, total sewage and flow rate of wastewater in SWPA continuously increased from 1990 to 2016, while the location of new facilities for industrial and livestock facilities has been restricted. However, unlike the buffer zone in which industrial and livestock facilities were continuously reduced after implementing of TMDL, it was found that the effect of land-use regulations on industrial and livestock facilities in SWPA were mitigated by the increase in the size of large facilities. Since 1999 when the emission standard of public sewage treatment plants (STP) was changed, the water quality of Lake Paldang has increased despite the increase of pollutant source. Since emission standard of STP changed in 2012 (BOD 5 mg/L, TP 0.2 mg/L), BOD concentration in Lake Paldang has also improved to the level of water quality in the early 1990s where as TP concentration has remained at its lowest since 1990. BOD and TP average discharge concentration of 43 STP (${\geq}500m^3/day$) in 2016 have been maintained $1.7{\pm}0.7mg/L$ and $0.06{\pm}0.02mg/L$ respectively. While the discharged load of STP in SWPA was decreased by the concentration management, the contribution rate to the total discharged load of non-point pollutants increased to 70 % in 2015, and the contribution rate to the point discharged load of individual treatment facilities increased to 80 %.

• 한국가스학회지
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• 제27권3호
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• pp.91-97
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• 2023

오래된 디젤 엔진을 탑재하고 있는 노후화된 건설용 기계 및 차량들은 보통 수명이 길기 때문에 최신의 배기 규제와는 동떨어진 수준의 유해한 배출가스를 계속 배출하고 있다. 따라서 이러한 구형 디젤 엔진을 최신 배기 규제를 만족하는 엔진으로 대체할 수 있다면 대기질 개선에 도움이 될 것으로 기대되는데, 건설 현장에서 손쉽게 구할 수 있는 프로판 연료를 적용한 엔진이 적합한 대안이 될 수 있다. 따라서 본 연구에서는 6.8리터 CNG 엔진을 베이스로 프로판 전용 엔진을 개발하였으며, 가스 전용 인젝터, 배기가스재순환(EGR), 강화된 촉매 등의 기술이 적용되었다. 그 결과 동급의 디젤 엔진 출력 및 토크를 확보하는 한편 최신 배출가스 규제인 Stage-V 수준에서 질소산화물은 절반 수준에 해당하는 배출가스 성능을 달성하였다.

• 한국가구학회지
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• 제27권4호
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• pp.335-342
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• 2016

In previous study, volatile organic compounds (VOCs) emission characteristics were highly affected by coating materials for wood finishing. Natural based coating materials showed that about 15~46% lower TVOC emission than typical products. In this study, long-term changes of VOCs emission characteristics from pine panel with three types of coating treatments were determined. Non-treated pine panel emitted $604.7{\mu}g/m^2{\cdot}h$ of TVOC that contained 66% of NVOC ($399.7{\mu}g/m^2{\cdot}h$) at 0 month. After 10 month, TVOC reduced 88% and 93% reduction on NVOC was observed. Natural oil and waterborne stain treated pine panel showed 61% and 77% lower TVOC, respectively, than non-treated pine panel. However, TVOC from finished pine panels showed higher TVOC emission than non-treated pine panel. All samples satisfied the VOC emission regulation (below $4,000{\mu}g/m^2{\cdot}h$) by Korean Ministry of Environment. Toluene emission regulation (below $80{\mu}g/m^2{\cdot}h$) was passed on all sample without varnish treated pine panel at 0 month. According to HB qualification standard for construction materials by Korea Air Cleaning Association (KACA), wood is not qualified to get the best tag due to high TVOC emission. At the 10 months, only non-treated pine panel could get the best tag of HB from KACA.

• 한국자동차공학회논문집
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• 제18권4호
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• pp.31-39
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• 2010

Although driving patterns strongly influence greenhouse gas and air pollutant emission rate from light duty vehicles, emission measurements have been mainly based on chassis dynamometer testing with one standard driving pattern. And there has been limited work on quantifying the independent effect of driving parameters on emission rate because of multidimensional nature of real-world driving pattern. The objective of this study is to obtain the quantitative effect of relative positive acceleration (RPA) on vehicle emission rate. RPA has been used to define the occurrence of acceleration demanding large amounts of power in certain driving distance and shown to be a significant affecting parameter for real-world emission rate. 40 driving patterns have been developed with fixed driving parameters to investigate independent effect of RPA. For the same values of average vehicle speed and power, the trend in carbon dioxide emission rate and fuel consumption with respect to RPA is very clear. Emission rate of nitrogen oxide and particulate matter also increase with respect to RPA, but the trend is less clear. Carbon dioxide emission from diesel vehicle appear to be more affected by high accelerations compared to that from gasoline vehicle because of high intake air restriction during acceleration caused by turbocharger and intercooler. The results have implications for the possible reduction of environmental effects through better traffic planning and management, driver education and car design.