Experimental Study on the Combustion Characteristics of Emulsified Diesel in a RCEM 2000-05-0077
Combustion characteristics of the emulsified diesel fuels are investigated in a Rapid Compression and Expansion Machine(RCEM). Among the test cases the 40 W/O fuel injected at BTDC 20° has shown the best performance with respect to the efficiency and NOx and soot emissions. The pressure trace of the 40 W/O fuel is characterized by a longer ignition delay and a lower rate of pressure rise in premixed combustion. High speed photographs show reduced flame luminosity and lower flame temperature with the increasing W/O ratio. Micro-explosions of emulsified fuel droplets which affect the local shape and brightness of the flame are identified in magnified flame images.
Jae W. Park, Kang Y. Huh, Kweon H. Park
Seoul 2000 FISITA World Automotive Congress