Fabrication of Taper Gap Warm End Exchanger in Coaxial Pulse Tube Cryocooler
Coaxial pulse tube cryocooler (PTC) acquires a perfect substitute for the existing Stirling cryocooler for providing reliable low-noise cooling for the given infrared detector system.The challenging work is the exacting requirement on its dimensions which have to adapt to the given Dewar.Warm end heat exchanger is the key assembly of the pulse tube cryocooler,and the coupling effect especially the heat exchange of the gas and solid in warm end heat exchanger directly affects the performance of the pulse tube cryocooler,this paper briefly analyzes the differences of warm end heat exchangers in the form of cylinder gap,cylinder copper screen and taper gap.The status of every type of warm end heat exchanger are outlined,including the fabricating material and technique kernel,and especially introduce the taper gap warm end exchanger.In the end of the paper we conclude that the taper gap warm end exchanger can apparently improve the performance and minish the volume of the of the pulse tube cryocooler.
Warm End Heat Exchanger Pulse Tube Cryocooler Screen Taper Gap
Kai Xiang Yang Yi Nong Wu An Kuo Zhang Chao Xiong
Shanghai Institute of Technical Physics,Chinese Academy of Sciences 500 Yutian Road,Shanghai,China,2 Institute of Refrigeration Technology,University of Shanghai for Science and Technology,JunGong Road
国际会议
广州
英文
365-368
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）