THERMODYNAMICS IN THE PULS TUBE COOLERS
Oscillating flow based thermal systems include the pulse tube coolers, the Stirling coolers, and the thermoacoustic engines, etc. Theories such as linear thermoacoustics have been developed to explain the working mechanism. However, there are still some basic theoretical points that need to be clarified. From the viewpoint of thermodynamics, this article mainly focuses on the mechanism of cooling power generation in a Stirling type pulse tube cooler. A special method of switching between the Eulerian and Lagranian viewpoints is also introduced, which turns a possibly difficult analysis from one viewpoint into a much easier and clearer one from the other viewpoint. By doing these, some previous misleading concepts or theories are clarified and a relatively unified thermodynamic picture of what happens inside the pulse tube cooler and other oscillating flow systems is established, which may lead to a better qualitative understanding of the systems.
Dai WEI Ercang LUO
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）