摘要
为提高柴油机颗粒过滤器(diesel particulate filter,DPF)燃油助燃再生燃烧器燃烧效率和出口温度可控性,结合流动和传热的基本原理,对燃烧器基本结构进行了设计。通过建立数学模型对不同燃烧室长度、缩口直径的燃烧器展开模拟研究,对燃烧器结构进行优化。研究结果表明:当燃烧室长度为57mm时,燃烧器的温度分布、压力分布更好,燃烧效率更高;缩口直径为110mm时,燃烧器的综合性能更有利于DPF的再生。
To improve the combustion efficiency and the controllability of the outlet temperature,the structure of burner for fuel assisted regeneration of diesel particulate filter(DPF)was designed by gas flow and heat transfer analysis.Numerical simulation research and optimization on different combustion chamber lengths,neck diameters of the burner were carried out based on the established mathematical model.Results show when the combustion chamber length is 57mm,the temperature and stress distributions and combustion efficiency of the burner will be better.While the neck diameter is 110mm,the burner comprehensive performance is more beneficial to DPF regeneration.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2013年第S1期25-30,共6页
Chinese Internal Combustion Engine Engineering
基金
国家"八六三"高技术研究发展计划项目(2013AA065303)
关键词
内燃机
燃烧器
结构优化
燃烧室
数值模拟
柴油机颗粒过滤器
燃油助燃再生
IC engine
burner
structure optimization
combustion chamber
numerical simulation
diesel particulate filter(DPF)
fuel assisted regeneration
