| 斯特林发动机天然气扩散燃烧的数值分析和试验 |
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| 引用本文： | 汪海贵,朱辰元,薛飞,刘京,阎珽. 斯特林发动机天然气扩散燃烧的数值分析和试验[J]. 柴油机, 2005, 27(1): 37-42 |
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| 作者姓名： | 汪海贵 朱辰元 薛飞 刘京 阎珽 |
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| 作者单位： | 哈尔滨工程大学动力与核能学院,哈尔滨,150001;711研究所,上海,201203 |
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| 摘 要： | 应用数值模拟,对斯特林发动机中天然气的燃烧进行了全尺寸三维模拟。分析和优化对斯特林发动机燃烧室速度场、温度场分布以及排放有着重要影响的参数,如空气预热温度、旋流数和过量空气系数等。预测了优化后燃烧室的速度场、温度场分布,以及NO_x和CO的浓度场分布,得到了吸热部件周围的流动形式。模拟结果为抑制NOx和CO的排放和提高换热效率以及发动机的效率提供了指导,设计结果得到了试验验证。
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| 关 键 词： | 斯特林发动机 天然气 扩散燃烧 数值模拟 |
| 文章编号： | 1001-4357(2005)01-0037-06 |
| 修稿时间： | 2004-05-14 |
Numerical Study on Methane-air Flame on Stirling Combustor |
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| WANG Haigui,ZHU Chenyuan,XUE Fei,LIU Jing,YAN Ting. Numerical Study on Methane-air Flame on Stirling Combustor[J]. Diesel Engine, 2005, 27(1): 37-42 |
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| Authors: | WANG Haigui ZHU Chenyuan XUE Fei LIU Jing YAN Ting |
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| Abstract: | Numerical method is applied to launch the full-size 3D simulation of natural gas burning inside Stirling machine. Analysis and optimization are made on the parameters, including air preheat temperature, swirl number and excess air ratio, which mainly influence the Stirling combustor’s velocity and temperature distribution and exhaust emission level. Predic- tion is given to the distribution of velocity and temperature inside combustor optimized, as well as NOx and CO level and flow style through the heat exchanger. The simulation result could be the guide of the restraint of NOxand CO and improve the heat exchange and engine efficiency. The design has been validated through experiment. |
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| Keywords: | stirling machine natural gas diffusive burning numerical simulation |
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