열선 점화를 이용한 디젤 입자상 트랩의 자력 재생에 관한 수치적 시뮬레이션

다국어 초록 (Multilingual Abstract)

A mathematical model for self-supporting regeneration of diesel particulate filter was developed here in order to describe the processes which take place in the filter after ignition by electric wire heating. The soot is ignited by heating wire at front part of the channel, the flame is propagated and the soot is burned through the channel. In the model, the heating by the electric wire was treated as uniform heat source. Various numerical tests were performed to demonstrate how the gas flow rate, the oxygen concentration, the soot mass, the initial exhaust gas temperature, the heating input and time affect the regeneration time and peak trap temperature and to obtain self-supporting regeneration condition.<br/>