Abstract Thermoacoustic systems have attracted lots of attention in recent years due to their structural simplicity, high reliability, and potential for very high efficiency. There has been extensive research on standing wave and traveling wave systems, including both compressors and refrigerators. This article introduces our efforts towards building a high-efficiency and compact-sized thermoacousti-cally driven pulse tube cooler for temperatures below 80 K. Firstly, we have improved the heat exchangers in the thermoacoustic systems. By using Electrical Discharge Machining (EDM) cut heat exchangers, pressure ratios of 1.15/Helium and 1.22/Nitrogen have been obtained on a 1/4 wavelength standing wave system. Coupling the thermoacoustic compressor with a miniature pulse tube cooler has led to a lowest no-load temperature of 105.4 K. To reduce the size of the systems, we plan to use spring-mass resonators. The design and manufacture of two types of spring-mass resonators has just been completed, and tests will be done soon.
Building a High-Efficiency and Compact-Sized Thermoacoustically-Driven Pulse Tube Cooler
Cryocoolers 13 ; 195-199
2005-01-01
5 pages
Article/Chapter (Book)
Electronic Resource
English
Heat Exchanger , Electrical Discharge Machine , Pressure Ratio , Electrical Discharge Machine Process , Pulse Tube Physics , Extraterrestrial Physics, Space Sciences , Strongly Correlated Systems, Superconductivity , Optics, Optoelectronics, Plasmonics and Optical Devices , Imaging / Radiology , Automotive Engineering
Building a High-Efficiency and Compact-Sized Thermoacoustically-Driven Pulse Tube Cooler
British Library Conference Proceedings | 2005
|Thermoacoustically-Driven Pulse Tube Cryocoolers
British Library Conference Proceedings | 2005
|British Library Conference Proceedings | 2003
|High Efficiency Pulse Tube Cooler
Springer Verlag | 2002
|