Experimental Study of 20W@80K High Capacity Pulse Tube Cryocooler for Space Application

doi:10.3901/JME.2023.02.245

Abstract

Abstract: To meet the increasing demands of the high capacity cryocoolers used in space applications, a high-capacity pulse tube cryocooler has been successfully developed by the Technical Institute of Physics and Chemistry(TIPC). This cryocooler is driven by a linear compressor which consists of two dual-opposed pistons. The effects of inertance tube assembly, working pressure and input electrical power on the cooling performance of pulse tube cryocooler were studied by experiments. When the operating frequency is 50 Hz and the mean working pressure is 3.5 MPa for helium gas, the high efficiency pulse tube cryocooler achieves a no-load temperature of about 34 K. When the input power is 350 W and the reject temperature is 300 K, the cooling performance of the pulse tube cryocooler is 20.5 W at 80 K, and the relative Carnot efficiency of the whole cryocooler reaches 16.1%.

Key words: 20W@80K, pulse tube, large cooling capacity, space, coaxial

CLC Number:

TB651

ZHANG Guangwei, WANG Nailiang, XUN Yuqiang, CAI Jinghui. Experimental Study of 20W@80K High Capacity Pulse Tube Cryocooler for Space Application[J]. Journal of Mechanical Engineering, 2023, 59(2): 245-250.

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