| 陶瓷窑炉内NOx生成的三维数值模拟 |
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| 引用本文： | 邓伟强,曾令可,方海鑫,王慧,税安泽,刘平安,程小苏,刘艳春,张海文. 陶瓷窑炉内NOx生成的三维数值模拟[J]. 环境科学学报, 2006, 26(10): 1677-1682 |
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| 作者姓名： | 邓伟强 曾令可 方海鑫 王慧 税安泽 刘平安 程小苏 刘艳春 张海文 |
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| 作者单位： | 1. 华南理工大学材料科学与工程学院,广州,510640
2. 广东省能源利用监测中心,广州,510030 |
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| 基金项目： | 国家自然科学基金 , 广东省自然科学基金 |
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| 摘 要： | 借助计算流体力学(CFD)FLUENT软件对NOx在陶瓷烧成过程中的生成机理进行了研究,并探讨了影响NOx生成的因素,为治理及减少NOx排放提供相关的参考.研究发现,随着升温速度的增大,窑内温度均匀性变差,易形成局部高温点(区),从而导致NOx生成速度的增大;燃料所产生的中间产物NH3或HCN浓度在远离烧嘴和料垛区域中较小,总NO和燃料型NO浓度却较大.不过,无论中间产物为NH3还是HCN,都不能减少有害气体的生成.
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| 关 键 词： | 陶瓷烧成 FLUENT软件 Nox 三维模拟 |
| 文章编号： | 0253-2468(2006)10-1677-06 |
| 收稿时间： | 2005-11-22 |
| 修稿时间： | 2006-08-15 |
Three-dimensional numerical simulation of NOx in kiln |
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| DENG Weiqiang,ZENG Lingke,FANG Haixin,WANG Hui,SHUI Anze,LIU Pingan,CHENG Xiaosu,LIU Yanchun and ZHANG Haiwen. Three-dimensional numerical simulation of NOx in kiln[J]. Acta Scientiae Circumstantiae, 2006, 26(10): 1677-1682 |
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| Authors: | DENG Weiqiang ZENG Lingke FANG Haixin WANG Hui SHUI Anze LIU Pingan CHENG Xiaosu LIU Yanchun ZHANG Haiwen |
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| Affiliation: | Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Guangdong Energy conservation & Monitoring Center, Guangzhou 510030,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640,Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640 and Material College of Science and Engineering, Southchina University of Technology, Guangzhou 510640 |
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| Abstract: | NO_ x formation mechanism during sintering was studied with the FLUENT software, and factors effecting the NO_ x formation were discussed to supply the relevant reference information for treatment and reducing of the NO_ x .The results show that the temperature uniformity of kiln becomes bad with the heating rate increasing, and the local high temperature point (area) forms easily, resulting in quicker the NO_ x generation;The intermediate product HCN or NH_ 3 concentration is smaller in farther area from the burner and body area, but the total NO and fuel type of NO concentrations are larger. However, the intermediate product NH_ 3 or HCN can not reduce the generation of harmful gases. |
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| Keywords: | ceramic sintered FLUENT software NO_ x three-dimensional numerical simulation |
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