| 影响热声发动机工作频率的因素 |
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| 引用本文： | 孙大明,邱利民,谭永翔,郑金鹏.影响热声发动机工作频率的因素[J].低温工程,2006(4):24-27. |
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| 作者姓名： | 孙大明 邱利民 谭永翔 郑金鹏 |
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| 作者单位： | 浙江大学制冷与低温研究所,杭州,310027 |
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| 基金项目： | 教育部优秀青年教师资助计划，浙江省自然科学基金 |
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| 摘 要： | 热声发动机工作频率关系到与负载的匹配情况,是热声发动机声能输出的重要评价指标.对热声发动机的频率调节手段进行了系统分析,试验验证了部分调频方法,并运用数值模拟分析了新的调频手段.研究发现,通过改变工质类型、改变谐振管长度和直径,可以在一定程度上有效调节热声发动机的工作频率.数值模拟结果显示,发动机内气体平均温度较平均压力和回热器长度对工作频率的影响更大.
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| 关 键 词： | 热声 频率 流体网络 模拟 |
| 文章编号： | 1000-6516（2006）04-0024-04 |
| 收稿时间： | 2005-05-16 |
| 修稿时间： | 2005-05-162006-05-29 |
Factors of influencing working frequency in themoacoustic engines |
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| Sun Daming,Qiu Limin,Tan Yongxiang,Zheng Jingpeng.Factors of influencing working frequency in themoacoustic engines[J].Cryogenics,2006(4):24-27. |
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| Authors: | Sun Daming Qiu Limin Tan Yongxiang Zheng Jingpeng |
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| Affiliation: | Cryogenics Laboratory, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The working frequency of a thermoacoustic engine has effect on the matching mode of engine with the acoustic load. Its magnitude and stability are important criterion for the power output of a thermoacoustic engine. Some frequency adjustment methods were reviewed and verified experimentally and the numerical simulation by network mode was carried out. The experiment and simulation show that it is effec- tive to adjust the working frequency by changing the working gas, varying the length and diameter of resonance tubes. Moreover, the numerical simulation indicates the mean gas temperature has more influence on the working frequency than the mean gas pressure and the length of regenerator. |
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| Keywords: | thermoacoustic frequency fluid network simulation |
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