Fabrication of Taper Gap Warm End Heat Exchanger in Coaxial Pulse Tube Cryocooler


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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



Advanced Materials Research (Volumes 591-593)

Edited by:

Liangchi Zhang, Chunliang Zhang, Jeng-Haur Horng and Zichen Chen




K. X. Yang et al., "Fabrication of Taper Gap Warm End Heat Exchanger in Coaxial Pulse Tube Cryocooler", Advanced Materials Research, Vols. 591-593, pp. 365-368, 2012

Online since:

November 2012




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