A Heat-driven thermoacoustic cooler capable of reaching liquid nitrogen temperature
A Heat-driven thermoacoustic cooler capable of reaching liquid nitrogen temperature
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DOI：
10.1063/1.1941472
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发表时间：
2005-05
影响因子：
4
通讯作者：
W. Dai;E. Luo;Jianying Hu;H. Ling
中科院分区：
文献类型：
--
作者：
W. Dai;E. Luo;Jianying Hu;H. Ling
本文介绍了一种热驱动的热声冷却器，该冷却器在无活动部件的情况下能够达到液氮温度。热声冷却器由行波热声原动机和脉冲管冷却器组成。通过使用锥形谐振管，原动机可以提供高于1.26的压力比。通过使用长细管，脉冲管冷却器中不再需要储层。经过初步优化，最低温度达到68.8 K。这一结果表明，应用热声技术可以实现低于70 K的低温，这是通过简单地将管和固体材料结合起来实现的，而不需要任何移动部件。
This article introduces a heat-driven thermoacoustic cooler capable of reaching liquid nitrogen temperature with no moving parts. The thermoacoustic cooler consists of a traveling wave thermoacoustic prime mover and a pulse tube cooler. By using a tapered resonance tube, the prime mover can provide a pressure ratio higher than 1.26. By using a long thin tube, a reservoir is no longer needed in the pulse tube cooler. After preliminary optimizations, the lowest temperature reaches 68.8 K. This result shows the potential to achieve cryogenic temperatures lower than 70 K by applying thermoacoustic technology, which is simply realized through combinations of tubes and solid materials without the need of any moving parts.