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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (2): 308-313    DOI: 10.3785/j.issn.1008-973X.2013.02.018
能源工程     
热声系统基础实验台模拟
赵瑞东1,2, 吴张华1, 罗二仓1, 戴巍1
1. 中国科学院 低温工程学重点实验室 北京 100190；2. 中国科学院 研究生院 北京 100049
Study on the basic experimental rig for thermoacoustic system
ZHAO Rui-dong1,2, WU Zhang-hua1, LUO Er-cang1, DAI Wei1
1. Key Laboratory of Cryogenics, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
 全文: PDF 
摘要：

为了方便地研究回热器等热声关键部件在不同声场下的工作性能,寻找部件最优的结构参数及工作条件,提出一种热声基础实验平台.引入双电机实现系统中声场的可控调节,通过理论及数值计算分析系统内部声场的主要调节方式及特性,并对该方案进行初步实验验证.理论分析结果表明负载电机动质量与外接电阻是调节系统声场的主要方式,之后的数值模拟结果表明负载电机动质量对系统性能的影响大于外接电阻.通过数值优化,系统获得的最大净输出声功及热声效率分别为361 W与 39.1%.最后初步的实验结果表明所提出的实验方案可行,与数值计算趋势一致.
关键词： 热声系统;  直线电机;  回热器;  双作用    
Abstract:

For conveniently investigating the performance of core thermoacoustic components (such as regenerator) in different acoustic field and finding the optimal structure or working conditions, a novel experimental rig for thermoacoustic system was proposed. By use of linear motors, controllable regulation of acoustic field in the system was realized. The regulation methods and characteristic of the system acoustic field were analyzed by theory and numerically simulation. Finally, preliminary experiments were given to verify the scheme. Theoretical analysis results show that moving mass and resistance of load alternator are the main means to regulate the acoustic field. Subsequently numerical simulation results show that the influence of moving mass is larger than resistance. By optimization, the maximum net output acoustic power and thermoacoustic efficiency of 361 W and 39.1% are obtained respectively. Finally, the experimental results show that present scheme is feasible and has the same trend with numerical results.
Key words: thermoacoustic system    linear alternator    regenerator    double-acting
出版日期: 2013-03-14
:  TK 123  
基金资助:

国家“973”重点基础研究发展计划资助项目(2010CB227303)；国家自然科学基金重大资助项目（50890181）.
通讯作者: 吴张华,男,副研究员.     E-mail: zhhwoo@mail.ipc.ac.cn
作者简介: 赵瑞东（1986—）,男,博士生,主要从事热声发动机回热器的研究工作.E-mail: zrd_gscas@126.com
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引用本文:

赵瑞东, 吴张华, 罗二仓, 戴巍. 热声系统基础实验台模拟[J]. J4, 2013, 47(2): 308-313.

ZHAO Rui-dong, WU Zhang-hua, LUO Er-cang, DAI Wei. Study on the basic experimental rig for thermoacoustic system. J4, 2013, 47(2): 308-313.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.02.018    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I2/308

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