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A Study on Characteristics of the SI Engine Using Methanol Reformulated Fuels  

Lee, Suk-Young (Department of Mechanical Engineering, Inha Technical College)
Jeon, Chung-Hwan (Department of Mechanical Engineering, Pusan University)
Publication Information
Journal of Energy Engineering / v.19, no.1, 2010 , pp. 25-31 More about this Journal
Abstract
In this experimental research, it was studied to compare with pure gasoline and the fuels of RM50 (reformulated methanol fuel) for performance and exhaust emissions without reconstruction of engine systems. RM50 has a wider range of combustion limitation, which is one of the methanol's characteristics. This causes a stable driving state of RM50 in the experimental condition of unstable state and a low cycle by cycle variation which is used to determine the driving state. It is determined that fuel stability is better because cycle by cycle variation varies within 10%, therefore, driving characteristics is relatively good. In all conditions, RM50 has lower exhaust emissions of CO, HC, NOx than gasoline fuel, however, RM50's noise characteristics are 0.5~2dB higher at all condition, and in the result of the experiments of rubber fusion, it increases the utility possibility of RM50.
Keywords
Methanol reformulated fuel; Cycle by cycle variation; Break specific fuel consumption; Exhaust emissions; Noise and vibration;
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