20406 水エマルジョン燃料ディーゼル機関の特性に関する研究 : 機関の不安定原因の解明(OS2 動・植物油燃料エンジン)

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We experimentally evaluate a performance and exhaust emissions of a single cylinder, four stroke direct injection diesel engine operating on diesel fuel containing 50% volume waste soybean oil (Blend 50), waste soybean oil containing 50% waste polystyrene pyrolysis oil (Blend PS), soybean oil methyl ester (VDF) and their water-fuel emulsions. The combustion characteristics and emissions such as NOx, CO, THC, O_2, CO_2, smoke opacity and particle size distribution of exhaust particulate are compared with the case of JIS #2 diesel fuel. We found that (i) the CO emissions of water-emulsified fuels are higher than diesel fuel especially in the low load range. (ii) the NOx emissions of water-emulsified fuels are lower than base fuel in the almost load range, and smoke of water-emulsified fuels are lower than base fuel.
2005-03-17