抄録
We experimentally evaluate a performance and exhaust emissions of a single-cylinder, four stroke direct injection diesel engine operating on Mixed waste food oil methyl ester (Recycle BDF). The combustion characteristics, emissions such as NO_x, CO, HC, O_2, CO_2, smoke, particle size distribution and first stage durability test are compared with the case of JIS #2 gas oil. We found that (1) the NO_x emissions of Recycle BDF are slightly higher than gas oil in the almost load range. (2) CO and Smoke emissions of BDF fuels are lower than gas oil especially in the high load range. (3) PM emissions of Recycle BDF are 1/2 times its gas oil. (4) Smoke and PM concentrations of Recycle BDF are lower than gas oil at high load condition. (5) It is important to remove impurity of BDF such as soap, methanol and so on. (6) Also discussed are the usability of the Recycle BDF, as well as the validity of application to a treatment process of the waste food oil.
