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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (8): 1457-1462    DOI: 10.3785/j.issn.1008-973X.2013.08.020
能源工程、化学工程与生物工程     
斯特林型热声发动机驱动直线发电机的工作特性
孙大明, 王凯, 楼平, 赵益涛, 张学军, 邱利民
浙江大学 制冷与低温研究所,浙江 杭州310027
Working characteristics of Stirling-type thermoacoustic engine connected with linear alternator
SUN Da-ming, WANG Kai, LOU Ping, ZHAO Yi-tao,ZHANG Xue-jun, QIU Li-min
Institute of Refrigeration and Cryogenic Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF 
摘要：

为探索发电机负载与热声发动机之间的耦合规律,开展发电机负载和声学传输管对斯特林型热声发动机工作特性影响的理论与实验研究.自行搭建一套斯特林型热声发动机驱动单直线发电机的实验系统,通过控制发动机与发电机间球阀的开关考察发动机在有无负载情况下的工作特性,通过改变声学传输管长度考察声学传输部件对发动机输出特性的影响.研究表明,发电机负载使系统起消振温度提高,而接入发电机负载前后系统工作频率基本不变；通过优化声学传输部件可有效改善发动机的输出特性,提高发动机的输出压力振幅和发电机输出电功；计算结果表明,改善频率匹配可大幅提高热声发动机驱动发电机系统的性能.
关键词： 热声发动机;  直线发电机;  声振荡;  热电转化    
Abstract:

Theoretical and experimental investigations on the effects of alternator load and acoustic transfer tube on the performance of a Stirling-type thermoacoustic engine were conducted to study the coupling laws between the linear alternator load and the engine. A self-designed experimental system of a Stirling-type thermoacoustic engine driving single linear alternator was constructed. The working characteristics of the system with and without the linear alternator load were investigated by controlling the ball valve between the engine and the alternator, and the effects of acoustic transfer component on the output characteristics of the system were studied by changing the length of the acoustic transfer tube. The results show that the alternator load makes the onset and the damping temperatures higher while the frequency rarely changed. The optimization of the transfer tube between the engine and the alternator load improves the output characteristics of the engine, amplifies the output pressure amplitude, and increases the output electrical power of the alternator. Furthermore, the computational results also demonstrate that the optimization of the working frequency matching will effectively improve the performance of the thermoacoustic generator system.
Key words: thermoacoustic engine    linear alternator    acoustic oscillation    heat-to-electric conversion
出版日期: 2013-09-05
:  TK 11  
基金资助:

国家自然科学基金资助项目（61077035）；国家“973”重点基础研究发展计划资助项目（2010CB227303）.
通讯作者: 张学军,男,副教授.     E-mail: xuejzhang@zju.edu.cn
作者简介: 孙大明（1976—）,男,副教授,从事热声热机和回热式低温制冷机工作.Email: sundaming@zju.edu.cn
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引用本文:

孙大明, 王凯, 楼平, 赵益涛, 张学军, 邱利民. 斯特林型热声发动机驱动直线发电机的工作特性[J]. J4, 2013, 47(8): 1457-1462.

SUN Da-ming, WANG Kai, LOU Ping, ZHAO Yi-tao,ZHANG Xue-jun, QIU Li-min. Working characteristics of Stirling-type thermoacoustic engine connected with linear alternator. J4, 2013, 47(8): 1457-1462.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.08.020    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I8/1457

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