扬声器驱动热声制冷机设计研究

Design Investigation on Thermoacoustic Refrigeration

热声制冷机主要由声驱动器、共振管、板叠、高低温端换热器、声容等部件组成。它具有运动部件少、运行可靠、振动小和寿命长等优点 ,在军事、航天、微电子、低温物理等领域有着十分诱人的应用前景。文中运用经典线性热声理论对热声制冷机各个组成部件设计进行了介绍 ,在此基础上设计了一台扬声器驱动热声制冷机 ,并用专业计算软件进行了数值模拟验证 ,为热声制冷机进一步优化与发展提供了一个解决方案。

As a new-type refrigeration technology thermoacoustic refrigeration has attracted more and more attention. A thermoacoustic refrigerator has no moving parts, and thus extremely reliable, simple, and cheap to construct. It consistes of sound driver, resonator, stacks, heat exchangers and buffer volume etc. A thermoacoustic refrigerator driven by loudspeaker is designed by classic linear thermoacoustic theory. The design is also verified by DeltaE and shows good agreement with the numerical simulation. The design method is in favor of the optimization of further development in thermoacoustic field.