벽-유동(Wall-Flow) 모노리스(Monolith) 디젤 입자상물질 필터 트랩의 재생모델에 의한 수치 시뮬레이션

Computational Simulation by One-Dimensional Regeneration Model of Wall-Flow Monolith Diesel Particulate Filter Trap

A mathematical model for wall-flow monolith ceramic diesel particulate filter was developed in order to describe the processes which take place in the filter during regeneration. The major output of the model comprises ceramic wall temperature and regeneration time(soot reduction). Various numerical tests were performed to demonstrate how the gas oxygen concentration, flow rate and the initial particulate trap loading affect the regeneration time and peak trap temperature. The model is shown to b in reasonable agreement with the published experimental results. This model can be applied to predict the thermal shock failure due to high temperature during combustion regeneration process.