摘要
建立了基于GT-Power的柴油机颗粒捕集器(DPF)仿真模型,通过模拟计算对DPF再生过程,排气流量、颗粒物载荷量对再生平衡点温度的影响进行了研究。首先通过对DPF再生过程的仿真验证了模型的正确性。对再生平衡温度的模拟计算结果表明:在一定排气流量或颗粒物载荷量下,DPF再生平衡点温度均在很小的区间内变动,即DPF的再生过程受温度影响很大,只在很小的温度区间内达到平衡,并且DPF再生平衡温度随着排气流量的增加而升高,随着颗粒载荷量的增加而下降。
A simulation model of diesel particulate filter （DPF） was established based on GT-Power. The regeneration process of DPF and impact of exhaust mass flow rate and loaded PM mass on regeneration balance point temperature （BPT） were investigated. The validity of the model was proved in the simulation of regeneration process. The simulation results of regeneration BPT show that under definite exhaust mass flow rate or loaded PM mass, the regeneration BPT varies in a narrow range, that is, the DPF regeneration balance can be reached only in a very narrow temperature range. Furthermore the regeneration BPT goes up with the exhaust mass flow rate increasing and goes down with the loaded PM mass adding.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2010年第4期39-43,共5页
Chinese Internal Combustion Engine Engineering
基金
上海汽车工业科技发展基金项目资助(053012009)
关键词
内燃机
柴油机
颗粒捕集器
再生平衡
温度
仿真
IC engine
diesel engine
diesel particulate filter（DPF）
regeneration balance
temperature
simulation
