Luo E C, Dai W, Zhang Y, Ling H
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.
Ultrasonics. 2006 Dec 22;44 Suppl 1:e1531-3. doi: 10.1016/j.ultras.2006.08.002. Epub 2006 Aug 31.
In this paper, a thermally-driven thermoacoustic refrigerator system without any moving part is reported. This refrigeration system consists of a thermoacoustic-Stirling heat engine and a thermoacoustic-Stirling refrigerator; that is, the former is the driving source for the latter. Both the subsystems are designed to operate on traveling-wave mode. In the experiment, it was found that the DC-flows had significant negative effect on the heat engine and the refrigerator. To suppress these DC-flows, two flexible membranes were inserted into the two subsystems and worked very well. Then extensive experiments were made to test the influence of different parameters on refrigeration performance of the whole system. The system has so far achieved a no-load temperature of -65 degrees C, a cooling capacity of about 270 W at -20 degrees C and 405 W at 0 degrees C; in fact, the result showed a good prospect of the refrigeration system in room-temperature cooling such as food refrigeration and air-conditioning.
本文报道了一种无任何运动部件的热驱动热声制冷系统。该制冷系统由一台热声 - 斯特林热机和一台热声 - 斯特林制冷机组成；也就是说，前者是后者的驱动源。两个子系统均设计为行波模式运行。在实验中发现，直流流动对热机和制冷机有显著的负面影响。为抑制这些直流流动，在两个子系统中插入了两个柔性膜，效果良好。然后进行了大量实验，以测试不同参数对整个系统制冷性能的影响。该系统目前已实现空载温度为 -65℃，在 -20℃时制冷量约为270W，在0℃时为405W；事实上，结果表明该制冷系统在诸如食品冷藏和空调等室温冷却方面具有良好的应用前景。
