13 K thermally coupled two-stage Stirling-type pulse tube refrigerator  

作　　者：TANG Ke CHEN Guobang THUMMES Gunter 

机构地区：[1]Cryogenics Laboratory, Zhejiang University, Hangzhou 310027, China [2]Institute of Applied Physics, University of Giessen, Giessen 35392,Germany

出　　处：《Chinese Science Bulletin》2005年第16期1814-1816,共3页

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.50376055);DAAD of Germany.

摘　　要：Stirling-type pulse tube refrigerators have at-tracted academic and commercial interest in recent years due to their more compact configuration and higher effi-ciency than those of G-M type pulse tube refrigerators. In order to achieve a no-load cooling temperature below 20 K, a thermally coupled two-stage Stirling-type pulse tube refrig-erator has been built. The thermally coupled arrangement was expected to minimize the interference between the two stages and to simplify the adjustment and optimization of the phase shifters. A no-load cooling temperature of 14.97 K has been realized with the two-stage cooler driven by one linear compressor of 200 W electric input. When the two stages are driven by two compressors respectively, with total electric input of 400 W, the prototype has attained a no-load cooling temperature of 12.96 K, which is the lowest temperature ever reported with two-stage Stirling-type pulse tube refrigera-tors.Stirling-type pulse tube refrigerators have attracted academic and commercial interest in recent years due to their more compact configuration and higher efficiency than those of G-M type pulse tube refrigerators. In order to achieve a no-load cooling temperature below 20 K, a thermally coupled two-stage Stirling-type pulse tube refrigerator has been built. The thermally coupled arrangement was expected to minimize the interference between the two stages and to simplify the adjustment and optimization of the phase shifters. A no-load cooling temperature of 14.97 K has been realized with the two-stage cooler driven by one linear compressor of 200 W electric input. When the two stages are driven by two compressors respectively, with total electric input of 400 W, the prototype has attained a no-load cooling temperature of 12.96 K, which is the lowest temperature ever reported with two-stage Stirling-type pulse tube refrigerators.

关 键 词：电冰箱 交流换热器 脉冲管 制冷设备 

分 类 号：TM925.21[电气工程—电力电子与电力传动]