热声制冷的实验研究  

EXPERIMENTAL INVESTIGATION ON THERMOACOUSTIC REFRIGERATION

作　　者：邱利民[1] 蒋宁[1] 蒋彦龙[1] 余建平[1] 陈国邦[1] 

机构地区：[1]浙江大学制冷与低温工程研究所,杭州310027

出　　处：《低温物理学报》2000年第5期394-400,共7页Low Temperature Physical Letters

基　　金：国家自然科学基金资助项目

摘　　要：自行研制了热声驱动脉管制冷机实验台 ,着重研究了加热温度、平均工作压力、小孔开度、工质种类等因素对脉管制冷机性能的影响 .初步实验表明 ,以氮、氦及氦和氩混合物 (氦占 94 % )作工质 ,分别获得了 2 34.5K、179K及 16 5K的无负荷制冷温度 .此外 ,本文还指出了进一步改进方向 ,具有一定参考价值 .A self made pulse tube refrigerator driven by thermoacoustic prime mover was set up to study the effects of heating temperature, mean pressure, open ratio of orifice and working fluids on the performance of the cryocooler. The preliminary experiments show that temperatures as low as 234.5K, 179K and 165K were obtained with the working fluids of nitrogen, helium and helium/argon mixture respectively. Better results could be expected after further improvements.

关 键 词：热声制冷 热声驱动脉管制冷机 实验 

分 类 号：TB61[一般工业技术—制冷工程] TB651