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

查看全文 作　　者：TANG [1]Ke;CHEN [1]Guobang;THUMMES [2]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》索引2005年第50卷第16期,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. 关 键 词：电冰箱 交流换热器 脉冲管 制冷设备