Modelling and experimental study of a 700 g micro coaxial Stirling-type pulse tube cryocooler operating at 100-190 Hz. (April 2019)

• Record Type: Journal Article
• Authors: Li, Jiaqi; Tan, Jun; Zha, Rui; Zhang, Tao; Zhao, Bangjian; Zhao, Yongjiang; Dang, Haizheng
• Is Part Of: IOP conference series. Volume 502(2019)
• Publication Date: 2019-04
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/502/1/012031
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: This paper presents the modelling and experimental study of a 700 g micro coaxial Stirling-type pulse tube cryocooler (SPTC) operating at 100-190 Hz. Neither double-inlet nor multi-bypass is used while the inertance tube with a gas reservoir becomes the only phase-shifter. A two-dimensional axis-symmetric CFD model of the micro SPTC is developed, in which the effect of frequency on the thermal process and cooling performance is studied in detail. Mixed regenerator matrices are used to decrease the irreversible loss, and a variety of approaches to minimize the overall cooler mass are attempted. The experimental results show that the SPTC could produce cooling power of 1.1 W at 77 K with an input power of 60 W.