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강병무 ( Byung-mu Kang ),김한솔 ( Hansol Kim ),안병진 ( Byung Jin Ahn ),한유일 ( Yu Il Han ),나스리디노프아지즈 ( Nasridinov Aziz ),홍장의 ( Jang-eui Hong ),류관희 ( Kwan-hee Yoo ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.2
본 논문은 버스 탑승 인원을 혼잡 정도로 제공하는 버스 정보 시스템의 구현을 목적으로 한다. 최근 버스 정보 시스템의 도입을 통하여 버스 이용자에게 다양한 위치 기반 정보를 제공함으로써 편의성을 제공하고 있다. 그러나 쾌적한 버스를 이용하기 위하여 버스 선택을 위한 의사결정에 필요한 정보의 제공이 요구된다. 이를 위하여 승차인원 정보 제공의 필요성을 분석하고 라즈베리파이에 GPS모듈과 적외선 센서를 이용하여 통신함으로써. 탑승인원 정보를 수집하고 더불어 가공하여 버스 내에 탑승 인원 혼잡 정도를 스마트폰을 통하여 정보를 제공할 수 있도록 구현하였다. 제안한 시스템은 버스 위치기반 관련 정보와 버스 이용객의 의사 결정을 위한 주요한 요소인 승차인원 정보를 제공함으로써 쾌적한 버스이용과 효율적인 버스 관리의 장점을 제공한다.
김종률(Jong-yul Kim),강병무(Byung-mu Kang),이태원(Tae-won Lee),정성식(Sung-sik Chung),하종률(Jong-yul Ha) 한국자동차공학회 2000 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
To investigate the method of the simultaneous reduction of Soot and NOx, we developed a new conception for dual fuel stratified injection system in a Diesel Engine. Some parts of the injection system, ie, nozzle holder, delivery vale, were remodeled to inject diesel and methanol in order from one injector. The quantity of diesel and methanol was controlled precisely by micrometers that were mounted at control lack of injection pump.<br/> The real injection quantity ratio of dual fuel was certificated by volumetric ratio at injection quantity experiment. We could confirm the capability that soot and NOx simultaneously were reduced by diesel-methanol stratified injection from the results of combustion and exhaust characteristic.
[디젤엔진부문] 이종연료 층상분사를 이용한 디젤엔진의 NOx와 soot 동시 저감에 관한 연구(제3보)
안현찬(Hyen Chan An),강병무(Byung Mu Kang),이태원(Tae Won Lee),정성식(Sung Sik Chung),하종률(Jong Yul Ha) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.11_1
This paper is study on simultaneous reduction of NOx and soot for direct injection diesel engine using high and low cetane fuels. The stratified injection system was applied for diesel engine to use high and low cetane fuel. In this study, diesel fuel was used as high cetane fuels, methanol was used as low cetane fuels.<br/> Some parts of the injection system, ie. Nozzle holder, delivery vale, was remodeled to inject dual fuel sequentially from one injector. The real injection Quantity ratio of dual fuel was certificated by volumetric ratio at injection Quantity experiment.<br/> According to varying ratio of supplied amount of low cetane fuel, Combustion experiment was performed using Toroidal and Complex chamber. Also, exhaust gas and fuel consumption were measured at the same time.<br/> Simultaneous reduction of NOx and soot was achieved at complex chamber regardless of component of low cetane fuel. However, according as supplied amount of low cetane fuel was increased, THC and CO was increased.<br/>
수냉식 EGR Cooler를 적용한 HSDI 디젤엔진에서의 배기특성 및 연료소비율에 관한 연구
박우영(Woo-young Park),이현우(Hyun-woo Lee),강병무(Byung-mu Kang),염정국(jung-kuk Yeom),정성식(Sung-sik Chung),하종률(Jong-yul Ha) 한국자동차공학회 2003 한국자동차공학회 지부 학술대회 논문집 Vol.2003 No.10
EGR is applied to diesel engines as the main measure to reduce NOx emissions.<br/> However, the application of EGR is also having a problems which we have to solve. In<br/> particular, EGR system has relation the trade-off between NOx and Soot emissions, especially at high loads.<br/> Reducing NOx and Soot emissions from diesel engine, and improving fuel consumption<br/> simultaneously are important in meeting government regulations and society's needs.<br/> In this study, the effects of Cooled EGR on the characteristics of NOx and Soot have been investigated using HSDI(High Speed Direct Injection) diesel engine operating at various loads and speeds.<br/>
디젤엔진에서 EGR 온도 변화에 따른 배기 특성에 관한 연구
윤여태(Yu-tae Yoon),박우영(Woo-young Park),강병무(Byung-mu Kang),염정국(Jeong-kuk Yeom),정성식(Sung-sik Chung),하종률(Jong-yul Ha) 한국자동차공학회 2002 한국자동차공학회 지부 학술대회 논문집 Vol.2002 No.3
Recently, an important goal in diesel engine research is the development of a means to reduce the emissions of NOx and Soot.<br/> Exhaust gas recirculation(EGR) is one of the most effective techniques currently available for reducing NOx emission in internal combustion engines. Since the exhaust gas temperature is higher than that of the intake air, EGR raises the inlet charge temperature and reduces the inlet charge mass.<br/> This work is to review the potential of cooled EGR to reduce the exhaust emissions, particularly NOx emission. Cooled EGR makes possible lower NOx and Soot emissions than hot EGR due to the increase of inlet charge mass. Also, this research used dual fuel stratified injection system because that is the method of the simultaneous reduction of soot and NOx.<br/> In the present study, the results show NOx can be reduced with a minimum penalty of Soot particle emission with cooled EGR. The use of Cooled EGR and dual fuel stratified injection system is, therefore, believed to be most effective in improving exhaust emissions.<br/>
이종연료 층상분사를 이용한 디젤엔진을 NOx와 soot동시 저감에 관한 연구(제2보)
하종률,강병무,안현찬,이태원,윤수한 東亞大學校 2001 東亞論叢 Vol.38 No.-
To investigate the method of the simultaneous reduction of Soot and NOx, we developed a new conception for dual fuel stratified injection system in a Diesel Engine. Some parts of the injection system, ie. nozzle holder, delivery vale, were remodeled to inject diesel and methanol in order from one injector. The quantity of diesel and methanol was controled precisely by micrometers that were mounted at control lack of injection pump. The real injection quantity ratio of dual fuel was certificated by volumetric ratio at injection Quantity experiment. We could confirm the capability that soot and NOx simultaneously were reduced by diesel-methanol stratified injection from the results of combustion and exhaust characteristic.
이종연료 층상분사를 이용한 디젤엔진의 NOx와 soot 동시 저감에 관한 연구 (제3보)
안현찬,강병무,이태원,정성식,하종률 동아대학교 환경문제연구소 2002 硏究報告 Vol.25 No.1
This paper is study on simultaneous reduction of NOx and soot for direct injection diesel engine using high and low cetane fuels. The stratified injection system was applied for diesel engine to use high and low cetane fuel. In this study, diesel fuel was used as high cetane fuels, methanol was used as low cetane fuels. Some parts of the injection system, ie. Nozzle holder, delivery vale, was remodeled to inject dual fuel sequentially from one injector. The real injection quantity ratio of dual fuel was certificated by volumetric ratio at injection quantity experiment. According to varying ratio of supplied amount of low cetane fuel, Combustion experiment was performed using Toroidal and Complex chamber. Also, exhaust gas and fuel consumption were measured at the same time. Simultaneous reduction of NOx and soot was achieved at complex chamber regardless of component of low cetane fuel. However, according as supplied amount of low cetane fuel was increased, THC and CO was increased.
M(Cd , Ag , Cu , Fe) - 활성탄 및 셀룰로오스의 표면 특성과 항균성
김동원,홍영관,강병무,박희관,전종선 충북대학교 과학교육연구소 1999 과학교육연구논총 Vol.15 No.1
A studies on the adsorption properties and antibacterial effects of the Cd, Ag, Cu, and Fe-treated activated carbon and cellulose were carried out. From the adsorption on the series of these metal-treated activated carbons and celluloses, typical type-1 isotherm was observed. The surface areas of the metal treated carbon and cellulose obtained from BET equation were in the range of 1114-1402㎡/g for Ag-AC and of 12.7-16.3㎡/g for Ag-C. From the SEM study, it is also observed that many of micropores in activated carbon are blocked by window blocking effect of metals after the impregnation. Finally, antibacterial effects of M-activated carbon and cellulose against Escherichia coli were discussed. From the study, the area of antibacterial activity becomes larger with the increase of the amount of metal treated.