エタノールー軽油混合燃料を用いた小型ディーゼル機関の燃焼特性に関する考察

抄録

Nowadays, biomass fuels become a subject which is extensively concerned from the view points of the aggravation of the greenhouse effect, acid rain, other environmental problems and the depletion of oil resources. From the point of this view, this experiment has been carried out to examine the influence of combustion characteristics and exhaust emissions for small diesel engine by using ethanol-light oil blended fuels and emulsified fuel of ethanol. The combustion behaviors, such as burning pressures, heat release rate and emissions (CO, HC, NO_X, Smoke) are observed. The main conclusions are as follows: 1) HC and CO emissions of ethanol-light oil blended fuels are bigger than that of light oil. 2) It is possible to reduce the NO_X and smoke emissions by using ethanol-light oil blended fuels. 3) NO_X emissions can possible to reduce by using ethanol emulsified light oil under high load engine conditions.