| 燃气轮机燃烧室内NOx生成影响因素的数值研究 |
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| 引用本文： | 张文普. 燃气轮机燃烧室内NOx生成影响因素的数值研究[J]. 燃气轮机技术, 2004, 17(4): 59-63 |
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| 作者姓名： | 张文普 |
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| 作者单位： | 浙江大学力学系,浙江,杭州,310027;浙江大学工程与科学计算中心,浙江,杭州,310027 |
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| 摘 要： | 低NOx燃气轮机燃烧室的燃烧特性受到旋流的强烈影响，旋流特性的分析对燃烧室的设计和优化具有非常重要的作用。本文对燃气轮机燃烧室的旋流燃烧流动，应用商用程序FLUENT进行了数值模拟，并分析了旋流数、压强、湍流度对燃烧室内燃烧特性和NOx生成特性的影响。模拟结果表明，随着压强的增加，NOx排放逐渐增加，随着燃料入口湍流度的增加，NOx排放将减少，而随着旋流数的增加，NOx排放先是增加而后减小，同时，NOx随压强变化呈指数规律变化，但不同的燃烧组织形式对指数值有较大的影响。
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| 关 键 词： | 燃气轮机 燃烧 旋流 数值模拟 NOx排放 |
| 文章编号： | 1009-2889(2004)04-0059-05 |
| 修稿时间： | 2004-07-09 |
Numerical Study on the Factors Effecting on Nox Formulation in a Gas Turbine Combustor |
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| ZHANG Wen-pu. Numerical Study on the Factors Effecting on Nox Formulation in a Gas Turbine Combustor[J]. Gas Turbine Technology, 2004, 17(4): 59-63 |
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| Authors: | ZHANG Wen-pu |
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| Affiliation: | ZHANG Wen-pu~ |
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| Abstract: | The combustion characteristics of the gas turbine combustor with low NO_x emission are affected by swirl. The analysis of swirl characteristics is important to design and optimize the combustor.In this paper the swirl flow and combustion in a gas turbine combustor are simulated with FLUENT software,and the affection of swirl number, pressure and turbulence to the combustion and NO_x emission characteristics are analyzed.The numerical result indicates that the NO_x emission increased with the increase of pressure,first increased,the decreased with the increase of swirl number.At the same time the numerical result also indicates that the NO_x emission increased with the pressure by exponent,and different combustion form has more influence to the pressure exponent. |
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| Keywords: | gas turbine combustion swirl number numerical simulation NO_x emission |
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