帅佳玮,雷福林,张哲巅

• 1:中国科学院先进能源动力重点实验室(工程热物理研究所)
• 2:中国科学院大学工程科学学院

摘要(Abstract)：

计算流体力学-化学反应器网络(computational fluid dynamics-chemical reactor network,CFD-CRN)模拟是一种适合燃气轮机NO_x排放预测的方法，基于此方法开发了具有通用性的CRN自动分区/求解程序，并在天然气微混燃烧室上进行应用与验证。通过CFD软件模拟分析微混燃烧室的流动和燃烧特性，建立CRN分区准则：首先将空气区和燃料区提取出来，然后沿轴向主分区，再根据燃料分级沿径向/周向细分区域。结果表明，CRN自动分区/求解程序使用可扩展标记语言XML(extensible markup language)规范化信息接口增强了通用性，适用于复杂燃烧室结构，对微混燃烧室不同工况的NO_x排放预测值与实验值相对误差小于11%，并且CFD网格数对CRN预测NO_x排放值的影响较小；同时分析了燃料分配比例对微混燃烧室NO_x排放的影响，给出了合适的调节范围。该CRN自动分区/求解算法在燃气轮机NO_x排放预测方面具有应用潜力。

关键词(KeyWords)： 微混燃烧室;化学反应器网络;CRN分区算法;燃料分级;NO_x排放

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项(Y2019-I-0022-0021)~~

作者(Author): 帅佳玮,雷福林,张哲巅

DOI: 10.19666/j.rlfd.202411240

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