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엄동섭(Dongseop Eom),최연수(Yeonsoo Choi),조용석(Yongseok Cho),이성욱(Seangwook Lee) 한국자동차공학회 2009 한국 자동차공학회논문집 Vol.17 No.3
Ethanol has properties of a lower setting point, higher oxygen contents, lower cetane numbers, and also higher volatility compared to biodiesel. Thus, biodiesel fuel can be improved in the fluidity of and exhaust emissions by blended ethanol fuel. This research aims to understand combustion characteristics of biodiesel-ethanol blending fuel inside a constant volume chamber by obtaining some fundamental data in order to improve combustion atmosphere. To understand the physics of combustion, high speed camera was applied to visualize the development of combustion processes, and combustion pressure and exhaust emission were measured at several blending ratios of ethanol and biodiesel fuel. This information may contribute to improve the performance of biodiesel engine and reduce emissions in future.
가솔린 연료 첨가제의 함유율에 따른 연소 및 배출가스 특성
이태규(Taekyu Lee),최연수(Yeonsoo Choi),이성욱(Seang-Wock Lee),조용석(Yong-Seok Cho),임철수(Cheolsoo Lim),서충열(Chungyul Seo) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Since air pollution due to automobiles has been serious globally, various studies on the reduction of exhaust emissions have been conducted actively to meet emission standards by many countries specially in advanced countries. However, so far the automotive technology mainly focused on the development of engine itself has reached its limitation of technology. Thus future automobile technology must depend on the development of clean fuel. This research aims to investigate engine power and emissions by the blending rates of fuel additive in a single cylinder engine and also behavior of name propagation inside a constant volume chamber. In this test, comparison study was made by using a sub-octane and blending rates of ethanol(3, 6, 10%), ETBE(7.1, 14.2, 23.6%), and MTBE(6.1, 12.3, 20.4%) respectively.