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- W320752408 abstract "Abstract : The objective of this experimental study is to verify atomization characteristics of emulsified fuel. The emulsified fuel made of adding the ultrasonic energy is analyzed with atomization characteristics and chemicophysics. As water contents within emulsified fuel and needle angle increase, SMD, viscosity and surface tension were analyzed. By measuring the distribution percentage of hydrogen volume by 1 H-NMR spectrum, the proportion of aromatics and paraffins is analyzed and compared each other. The results of study is as follows. First, as water contents within emulsified fuel and needle angle of nozzle increases, SMD increases. Second, for the distribution percentage of hydrogen volume, the distribution percentage of aromatics is about 10% and the rest portion is paraffins. Key words : Emulsified fuel(유화연료), Ultrasonic energy(초음파에너지), Atomization characteristics(미립화특성), SMD(Sauter Mean Dia.), 1 H-NMR(수소 핵자기분광) 1. 서 론 1) 디젤기관은 가솔린기관에 비해 연료의 경제성과 우수한 출력성능을 가지나, 대기 환경보전법에 의하여 엄격한 환경규제를 받는 디젤기관의 배기물질인 질소산화물, 입자상 물질, 분진 등에 의한 대기 환경오염에 대응･개선해 나감은 지속적인 과제로 남아있다.출력성능의 향상과 유해 배기가스의 저감은 어느 정도 상반된 특성을 가지고 있으며 동시 향상을 위해서는 분사된 연료를 적절한 시기에 완전연소 시켜야 하는데, 이를 위해서는 연료의 분무특성들과 연료의 물리･화학적 물성분석이 병행되어야 한다." @default.
- W320752408 created "2016-06-24" @default.
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- W320752408 date "2010-01-01" @default.
- W320752408 modified "2023-09-24" @default.
- W320752408 title "Atomization Characteristics for Various Injection Nozzle Type and Property Changes" @default.
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