高效同轴脉冲管制冷机性能的实验研究  

EXPERIMENTAL STUDY OF A HIGH EFFICIENT COAXIAL PULSE TUBE CRYOCOOLER

作　　者：黄宇[1,2] 胡剑英[1] 戴巍[1] 罗二仓[1] 

机构地区：[1]中国科学院理化技术研究所低温工程学重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《工程热物理学报》2011年第2期189-192,共4页Journal of Engineering Thermophysics

基　　金：国家杰出青年基金(No.50625650);国家基金委重大基金课题(No.50890181);国家自然科学基金(No.10874190)

摘　　要：同轴式脉冲管制冷机具有结构紧凑、与器件耦合简单的优点,在实际应用中得到了越来越广泛的采用。本文对一台经理论优化设计的高频同轴脉冲管制冷机进行了实验研究,采用自制的直线压缩机驱动,惯性管/气库作为调相机构,在输入电功150 W、冷端温度为77 K时得到了9.86 W的制冷量,相对卡诺效率达到18.4%,这是目前同轴脉冲管制冷机报道的最好结果。A coaxial pulse tube cryocooler has the advantage of compact structure and easy coupling with the loads, which make it widely used in application. In this paper, experimental study has been carried out for a coaxial pulse tube cryocooler which is driven by a self-designed linear compressor and uses an inertance tube with a reservoir as the phase shifter. With 150 W input electric power, the pulse tube cryocooler can obtained a cooling power of 9.86 W at 77 K. The corresponding relative Carnot efficiency is 18.470 which is the best result that have been reported.

关 键 词：同轴 脉冲管制冷机 相对卡诺效率 

分 类 号：TB651[一般工业技术—制冷工程]