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정길성(Gil Sung Jung),정종우(Jong-Woo Jeong),성용하(Yongha Sung),김화남(Hwanam Kim),최병철(Byungchul Choi),임명택(Myung Taeck Lim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
HCCI engines are expected to offer the high efficiency of DI diesel engines with low level of NOx and particulate emissions. Experimental HCCI engines are however reported to exhaust THC and CO at a level comparable to the gasoline engines. Because the exhaust gas temperature of HCCI engines is lower than that of the diesel engines, development of exhaust treatment devices like DOC's with high conversion efficiency especially at low temperature is crucial to commercialization of HCCI engines. Experimental DOC's are designed and fabricated in this study using various level of platinum loading and 600 cpsi ceramic monolith coated with two different type of wash coat. Performance test result of these DOC's show that the low-temperature type washcoat effectively lowers the 50% light-of f temperature by 30℃. L90, the catalyst with this type of wash coat and an intermediate level of level of platinum loading, demonstrates the lowest light-of f temperature in the model gas tests.
최종록(Jong-Rock Choi),정길성(Gil-Sung Jung),김동락(Dong-Rak Kim),박정건(Jeong-Kurn Park),김영재(Young-Jae Kim),김진일(Jin-Il Kim),송인섭(Inseob Song) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
To solve the power capacity shortage problem of e-Mobility, such as Unmanned Surveillance Vehicle, Direct Methanol Fuel Cell and Lithium Ion Battery hybrid power were developed. This paper will focus on the development process of the fuel cell controller. The newly developed fuel cell system consists of three 1kW range stacks, each of which can be operated and be controlled individually. In the initial stages of the system development, the three stacks had separate controllers respectively. The stacks now use a single unified controller, while they can still be operated and controlled individually by algorism derived from object-oriented method.