Performance of a constant speed CI engine on alcohol-diesel microemulsions
2004
Bhattacharya, T.K. | Chatterjee, S. | Mishra, T.N.
A constant speed, direct-injection diesel engine rated at 7.4 kW was tested on diesel fuel and four different ethanol-1-butanol-diesel microemulsions. The stable and homogeneous microemulsions were obtained by mixing 160 degrees, 170 degrees, and 180 degrees proof ethanol-1-butanol-diesel in 1:2.5:5.5 as well as 180 degrees proof ethanol-1-butanol-diesel in 1:2:3 proportions. The characteristic fuel properties such as relative density, kinematic viscosity and gross heat of combustion of the microemulsions were found to be close to that of diesel fuel. The power-producing capability of the engine was found similar on diesel fuel and the microemulsions. The emission of CO was found to be marginally lower but that of unburnt hydrocarbons and NO(X) were higher on microemulsions. An engine durability test of 310 h was successful.
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