Abstract
We experimentally evaluate a performance and exhaust emissions of a single-cylinder, four stroke direct injection diesel engine operating on diesel fuel containing 40% volume waste food-oil (Blend 4P), Blend 4P containing 30% waste soybean oil and 30% waste animal fat (Blend 4P-S30, 4P-M30), waste polystyrene pyrolysis oil containing 50% waste soybean oil and animal fat (Blend PS and Blend PS-M), and waste polystyrene pyrolysis heavy oil containing 50% waste soybean oil (Blend PS-H). The combustion characteristics, emissions such as NOx, CO, HC, O_2, CO_2, smoke, particle size distribution and first stage durability test are compared with the case of JIS # 2 diesel fuel. We found that (1)the NOx emissions of the fuel containing animal fats such as blend 4 P-M30 and Blend PS-M are lower than base fuel in the almost load range. (2)the CO emissions are lower than base fuel especially in the low load range.(3) Exhaust emissions of Blend PS-H are higher than another Blend PS in the over all range.
