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RGB/HSV Method 를 이용한 Diesel-water emulsion 의 배기배출물 특성 연구
분야 자연과학 > 화학
저자 김민호 ( Minho Kim ) , 우승철 ( Seungchul Woo ) , 김동우 ( Dongwoo Kim ) , 이기형 ( Kihyung Lee )
발행기관 한국액체미립화학회
간행물정보 한국액체미립화학회 학술발표논문집 2016년, 제2016권 62~63쪽(총2쪽)
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연관 논문
초음파장치를 이용한 경유-물 유화연료 사용 디젤엔진에 관한 연구 - 함수율이 기관성능 및 배기배출물 특성에 미치는 영향 - ( A Study of the DI Diesel Engine Using Light Diesel-Water Emulsified Fuel With Ultrasonic Apparatus - Effect of Water Content on Engine Performance and Exhaust Characteristics ) -
터보분자펌프(TMP) 배기속도 측정에 관한 고찰 -
연구논문 : 산 가수분해를 이용하여 microcrystalline cellulose로부터 추출 된 cellulose nano-whisker의 특성분석
논문 : PDA 용 웹사이트의 사용성 개선에 관한 연구; 웹메일의 사용자 행동 분석을 중심으로
고성능 솔버 IPSAP을 이용한 다중 옵션 가격 평가 -
 
 
영문초록
As the global warming and energy consumption increases, the diesel engine which had high thermal efficiency came into the spotlight again. However, the reduction of NOx and PM are still to be solved. Therefore, this study was applied to the diesel-water emulsified fuel (DE), which can simultaneously reduce NOx and PM, and the possibility of its application to conventional diesel engines was evaluated from the fundamental characteristics of diesel-water emulsified fuel. First of all, to examine the basic characteristics of DE depending on the type, content, and manufacturing time of surfactants, five surfactants were selected and a certain manufacturing ratio and time was given as a boundary condition. The produced DEs were evaluated in terms of water droplet size inside of the DE and stability. Before the four types of fuel in total (DE10/20 per two surfactants) were applied to diesel engines, an experiment was conducted as the preliminary step to examine the fuel characteristics such as injection quantity, injection rate, and spray behavior in the diesel fuel supply system. The DEs were applied to actual diesel engines and their combustion, emission, and fuel consumption characteristics were compared with those of diesel. In the experiment, the injection timing maintained the same with diesel. It was observed that all DEs involved the increase of injection quantity due to the low calorific value. In the low-load condition, ignition delay occurred, and as the load increased, ignition was advanced because of low ambient temperature due to the evaporative latent heat of water. Coefficient of variation (COV) of all DEs was stable as low as 2.0% and the combustion duration was shorter than that of diesel. NOx and PM generation rates of DEs were far lower than those of diesel, and so was THC probably because of the favorable function of the micro-explosion and evaporative latent heat. The value of CO, however, was higher because of the low CO oxidation rate. In the combustion visualization experiment where the macroscopic observation and digital image analysis were implemented, the micro-explosion phenomenon was observed. The attempt to predict PM generation rate failed due to the flame color, but the result of predicting NOx generation rate was persuasive enough to grasp the tendency. This study focuses on the use of diesel-water emulsified (DE) fuel to reduce NOx and PM emissions and evaluates its application to conventional diesel engines based on the fundamental characteristics of DE fuel. DE fuels were applied to actual diesel engines, and their combustion, emission, and fuel consumption characteristics were compared with those of diesel fuel. The injection time was the same in all experiments. The coefficient of variation (COV) of all DE fuels was stable at a value as low as 2.0%, and the combustion duration was shorter than that of diesel fuel. The NOx and PM generation rates of DE fuels were considerably lower than those of diesel fuel because of the beneficial effects of the micro-explosion and evaporative latent heat.
 
 
Diesel engine (디 젤엔진), Diesel-water emulsion(디젤-워터 에멀젼), Hue Saturation Value(HSV), Image processing (영상 처리)
 
 
도움말
본 논문은 참고용 논문으로 수정 및 텍스트 복사가 되지 않습니다.
 
 
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