混合工质脉管制冷机性能的数值模拟  

Numerical simulation for the performance of pulse tube refrigeration with gas mixture

作　　者：何雅玲[1] 吴明[1] 陶文铨[1] 陈钟颀[1] 潘雁频[2] 王小军[2] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049 [2]兰州物理研究所,甘肃兰州730000

出　　处：《热科学与技术》2002年第2期100-103,共4页Journal of Thermal Science and Technology

基　　金：国家重点基础研究发展规划资助项目 (G2 0 0 0 0 2 63 0 3 ) ;国家自然科学基金资助项目 (5 0 2 760 46)

摘　　要：开发了适用于混合工质的脉管制冷机的计算程序。利用此程序对应用混合工质提高脉管制冷机的制冷性能进行了研究 ,发现当混合工质采用氦气和氢气 ,且处于合适的配比下 ,可以进一步改进脉管制冷机的制冷性能。给出了当混合工质最佳配比时 ,脉管制冷机内热力参数的瞬时变化及一周期的循环参数。用该计算程序可以获得混合工质脉管制冷机内复杂过程的详细信息 。The computational program for the application of gas mixture to the pulse tube refrigerator (PTR) was developed. The effect of gas mixture on the performance of the PTR was studied with this program. It is found that using proper hydrogen/helium mixture as working medium will improve the performance of the PTR. In addition, the instantaneous changes of the thermodynamic parameters in the tube and the circulation parameters of a cycle were given when the molar percentage of helium was optimal. By this program, the authors can obtain the information of the complex processes of the PTR using gas mixture. And it will be used to direct the design and improvement of the PTR.

关 键 词：脉管制冷机 混合工质 数值模拟 低温制冷机 

分 类 号：TB651[一般工业技术—制冷工程]