Physical Characterization of Exhaust Particulate Emissions from a Light-Duty Vehicle Diesel Engine and Their Reduction by Means of a Trap-Oxidizer 871191
The paper consists of two parts. In the first part reported are the results of experimental physical characterization of a light duty IDI diesel engine exhaust particulate: concentrations, size distributions, and morphology. In the second part of the paper, presented is the development of a prototype particulate trap-oxidizer with ceramic foam as trapping element to reduce light-duty vehicle diesel engine exhaust particulate emission level. Tests of the trap-oxidiaer on the 485% diesel engine showed, ceramic foam trap reduced the diesel particulate emissions by 50-70% on the basis of mass concentrations. Trapped particulate deposits incinerates spontaneously when exhaust gas temperature over 450°C, reducing the resistance of the trap to exhaust flow. By the aid of fuel additives the regeneration temperature may he lowered by about 100°C.
Ji Yu, Liu Xunjun, Guo Yingnan, Fang Xiangzhong, Li Liguang
Automotive Engineering Institute, Jilin University of Technology, PRC
4th International Pacific Conference on Automotive Engineering
Proceedings of the Fourth International Pacific Conference on Automotive Engineering-P-212