摘要
本文提出用有限反应速率２阶矩封闭模型来模拟湍流对煤粉燃烧过程中ＮＯｘ生成的影响。在ＮＯｘ生成模型中，考虑了热力ＮＯ及煤中所含燃料ＮＯ的生成，同时考虑了ＮＯ／Ｃｈａｒ的异相还原反应。用上述模型对大速差射流燃烧室内煤粉燃烧过程中ＮＯｘ的生成进行了数值模拟。
A second order moment turbulence chemistry model for NO x formation in the process of pulverized coal combustion was developed and incorporated into the comprehensive model for simulating pulverized coal combustion.Two mechanism of nitric oxide formation are considered:thermal NO and fuel NO,thermal NO is predicted by using the Zeldovich mechanism,the fuel NO formation is described by a global mechanism explicit only in HCN,NO and N 2.Numerical modeling of NO x formation is made in a jet combustor and reasonable results are obtained.
出处
《燃烧科学与技术》
EI
CAS
CSCD
1998年第1期18-23,共6页
Journal of Combustion Science and Technology
基金
国家重大基础研究(攀登计划)资助
关键词
煤粉
燃烧
数值模拟
氮氧化物
NO x formation,Pulverized coal combustion,Numerical modeling
