Combustion Characteristics and Durability of Diesel Engine Utilizing Emulsified Fuel

Abstract

This study is carried out to investigate the combustion characteristics and durability of a diesel engine utilizing emulsified fuel. Recently, air pollution from the vehicle is one of the most serious problem . NOx, PM and sfc reduction is further required in diesel engines. In this study, for the reduction of harmful emissions, W/O(water in oil) type emulsified fuels with 13%, 15%, 17% water are used. Piezo-electric pressure sensor is used to get combustion pressure in cylinder and exhaust gas analyzer is used to measure exhaust emissions. Specific fuel consumption, sound level, and maximum torque are also measured. It was ascertained that the results show the 15% water emulsified fuel is good for NOx and PM reduction simultaneously and does not have much effect on a fuel consumption and a durability.목차 List of Tables = iii List of figures = iv ABSTRACT = viii I. 序論 1.1 연구배경 = 1 1.2 선행연구 = 2 1.3 연구목표 = 5 II. 理論的 考察 2.1 에멀션연료(Emulsified fuel) = 6 2.1.1 에멀션연료의 연소특성 = 8 2.1.2 에멀션연료의 미세폭발(Micro-explosion) = 10 2.1.3 해외 에멀션연료 개발현황 = 10 III. 實驗裝置 및 方法 3.1 D-13 모드 기관내구실험 및 배기가스 측정 = 12 3.1.1 실험장치 = 12 3.1.2 실험방법 = 16 3.2 연소실 압력측정 = 18 3.2.1 실험장치 = 18 3.2.2 실험방법 = 20 3.3 노즐 연료 분사량 = 20 3.3.1 실험장치 = 20 3.3.2 실험방법 = 23 3.4 에멀션연료의 제조 = 23 IV. 實驗結果 및 考察 4.1 D-13 모드 기관내구실험 = 26 4.2 D-13 모드 기관 배기가스 = 37 4.3 연소압력 측정 = 46 4.4 연료노즐 연료분사량 측정 및 기관소음측정 = 62 V. 結論 = 64 參考文獻 = 6