Investigation on traveling wave thermoacoustic heat engine with high pressure amplitude
Investigation on traveling wave thermoacoustic heat engine with high pressure amplitude
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DOI：
10.1016/j.enconman.2004.02.024
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发表时间：
2005
影响因子：
10.4
通讯作者：
Darning Sun;L. Qiu;Wu Zhang;Weilin Yan;Guo-bang Chen
中科院分区：
文献类型：
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作者：
Darning Sun;L. Qiu;Wu Zhang;Weilin Yan;Guo-bang Chen
行波热声发动机由于其回热器中发生的热声转换过程是可逆的，理论上可以高效地产生和传递声功率。设计、制造了一台大型多功能热声发动机并进行了试验。与驻波热声发动机的实验结果比较表明，该发动机具有更低的起振温度、更高的压比和更高的效率。充氮0.9MPa时，最大压比达到1.21，工作频率稳定在25Hz。用该发动机驱动的单级U型孔板脉管制冷机在工作压力为1.5MPa时，制冷温度达到153.7K。
As the thermoacoustic conversion process occurring in its regenerator is considered reversible, a traveling wave thermoacoustic engine can theoretically produce and transmit acoustic power with high efficiency. A large scale multifunction thermoacoustic engine has been designed, constructed and tested. Compared with the results of standing wave thermoacoustic heat engines, the experimental results show the engine has a lower onset temperature, much higher pressure ratio and higher efficiency. With the filling nitrogen of 0.9 MPa, the maximal pressure ratio reached 1.21, and the operation frequency was steady at 25 Hz. The single stage U type orifice pulse tube cooler driven by the engine reached 153.7 K when the working pressure was 1.5 MPa.