O_2/CO_2煤粉燃烧及NO_x污染排放的数值模拟  

Numerical simulation of coal combustion and NO_x emissionunder O_2/CO_2 atmosphere

作　　者：刘彦[1] 陈芳[1] 徐江荣[1] 黄雪峰[1] 丁宁[1] 罗丹[1] 王关晴[1] 

机构地区：[1]杭州电子科技大学理学院,浙江杭州310018

出　　处：《化工学报》2010年第8期2061-2066,共6页CIESC Journal

基　　金：浙江省教育厅科技项目(KYG091205046)

摘　　要：为了进一步全面评价O2/CO2煤粉燃烧特性,在前期实验基础上,通过数值模拟方法对空气、O2/CO2两种气氛下煤粉燃烧及污染物形成特性进行数值模拟,从而更充分了解O2/CO2燃煤过程火焰形成、传热和污染物形成特性,以便为合理组织流场、控制温度、获取合理的燃料和氧浓度分布状态及O2/CO2燃烧过程新燃烧器的设计提供必要的指导。Based on earlier experiments,this paper compares characteristics of coal combustion and pollutant formation under O2/CO2 atmosphere with conventional air by numerical simulation.It focuses particularly on the combustion fundaments,such as flame temperature,heat transfer,and NOx formations.The results showed that coal combustion under O2/CO2 atmosphere excelled combustion under conventional air.And the obtained data are necessary for reasonably organizing flow field,controlling flame temperature and adopting appropriate O2 concentration,which help to design new oxy-fuel combustor.

关 键 词：O2/CO2煤粉燃烧 数值模拟 污染排放 

分 类 号：X511[环境科学与工程—环境工程]