The simulation and experiments of a high frequency single stage pulse tube cryocooler with two cooled thermal sinks

In the application of infrared detectors, pulse tube cryocoolers are required to provide cooling power at different temperature ranges simultaneously with light weight and compact construction. In this paper, a single stage pulse tube cryocooler was designed to provide cooling power at different tem...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2024-05, Vol.1301 (1), p.12004
Main Authors: Gao, Min, Li, Geyang, Feng, Tianshi, Yang, Bin, Quan, Jia, Chen, Houlei, Cai, Jinghui, Zheng, Maowen
Format: Article
Language:English
Subjects:
Cryogenic cooling
Elastic waves
Heat exchangers
Heat sinks
Infrared detectors
Pulse tubes
Regenerators
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Summary:In the application of infrared detectors, pulse tube cryocoolers are required to provide cooling power at different temperature ranges simultaneously with light weight and compact construction. In this paper, a single stage pulse tube cryocooler was designed to provide cooling power at different temperature ranges with an extra cooled thermal sink placed in the middle of the regenerator. The axial distribution of volume flow and pressure wave of cryocooler with middle heat exchanger and without middle heat exchanger were compared theoretically. To verify the simulation results, a series of experiments were carried out. As a result, the cooling power of cryocoolers with middle heat exchanger was decreased at 80 K, and 0.5 W @ 88.5 K & 0.5 W @ 195.8 K of cooling power was obtained simultaneously at 45 W input power.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1301/1/012004