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常温空气 MILD 燃烧过程中 CO 形成特性 被引量:4

CO Formation Mechanism in Methane MILD Combustion Without Preheated Air
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摘要 采用实验和数值计算的方法,研究了甲烷在常温空气下的 MILD 燃烧.计算结果表明耦合机理 GRI-Mech 2.11的数值计算模型能很好地预测炉内 CO、O2和温度等参数.通过模拟发现,可以将整个炉膛划分成3个区域(Ⅰ:中心区,Ⅱ:高浓度区,Ⅲ:回流区),在不同区域内,CO 的生成与消耗是不同的,其中 CO 的生成反应主要为(R166)(HCO+H2O H+CO+H2O)、(R167)(HCO+M H+CO+M)、(R168)(HCO+O2 HO2+CO), CO 的消耗反应主要为(R99)(OH+CO H+CO2). Methane MILD(moderate or intense low-oxygen dilution)combustion without preheated air was studied ex-perimentally and numerically.The result shows that the numerical simulation of coupling GRI-Mech 2.11 can well predict CO,O2 and temperature in the furnace.The furnace can be divided into three zones(Ⅰ:central zone,Ⅱ:high concen-tration zone,Ⅲ:recycle zone)through modeling,and the CO generation and consumption are different in the three zones.The major CO generation reactions are (R166)(HCO+H2O H+CO+H2O),(R167)(HCO+M H+CO+M)and(R168)(HCO+O2 HO2+CO),and the major CO consumption reaction is (R99)(OH+CO H+CO2).
作者 刘洋 邹春 蔡磊 郑军妹 何一卓 张亮 郑楚光 Liu Yang,Zou Chun,Cai Lei,Zheng Junmei,He Yizhuo,Zhang Liang,Zheng Chuguang(1.State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China;2.School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;3.Key Laboratory of Kitchen Wisdom Integrated Health System in Zhejiang Province,Cixi 315300,China)
出处 《燃烧科学与技术》 CAS CSCD 北大核心 2016年第3期218-223,共6页 Journal of Combustion Science and Technology
基金 国家自然科学基金资助项目(51176055 50936001)
关键词 MILD燃烧 甲烷 CO生成 CO消耗 GRI-Mech2. 11 MILD combustion methane CO formation CO consumption GRI-Mech2. 11
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