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突破液氢温度的热驱动热声制冷机 被引量:7

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摘要 提出了一种“二介质耦合声学放大器”作为热声发动机与低温脉冲管制冷机的新型耦合机构,使其继续保持压力幅值放大的功能,且能够在热声发动机和脉冲管制冷机之间安装弹性膜.利用此新型耦合机构,可以使热声发动机以氮气为工作介质获得较低的工作频率,而脉冲管制冷机则可采用氦气为工作介质使其优良的低温制冷性能得到保证.采用聚能型行波热声发动机驱动,最终使一台两级脉冲管制冷机获得了18.7K的无负荷温度,使热驱动的热声制冷机突破了液氢温度.
出处 《科学通报》 EI CAS CSCD 北大核心 2006年第23期2823-2824,共2页 Chinese Science Bulletin
基金 国家自然科学基金重点项目(批准号:50536040) 面上项目(批准号:50506031)资助.
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参考文献9

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二级参考文献17

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