期刊
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
卷 94, 期 1, 页码 168-174出版社
WILEY
DOI: 10.1002/cjce.22366
关键词
diesel particulate filter; microwave regeneration; monolith structure; numerical simulation
资金
- National Natural Science Foundation of China [51176045, 51276056]
- China Scholarship Council [201208430262]
Based on models A, B, and C of three kinds of diesel particulate filter (DPF) with microwave regeneration, a DPF microwave regeneration model is established according to the laws of conservation of mass, momentum, and energy. The trends of internal temperature under different velocities of exhaust gas in channels are simulated and analyzed. The results show that: (1) Regeneration temperature in the process of microwave regeneration will begin to increase from the front to the rear end of along the axial direction, and the maximum temperature value will appear in the rear end of the monolith. (2) The internal flow velocity in the DPF of model C is the most uniform and the temperature gradient is the smallest among the three models. Therefore, it is the most useful for DPF regeneration. (3) The minimal thermal stress is exerted on the DPF of model C. Therefore, this model is most useful for prolonging the service life of a DPF.
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