Integration and Commissioning of a Full Localization 250 W @ 4.5 K Helium Refrigerator at TIPC. (April 2019)

• Record Type: Journal Article
• Authors: Xie, X J; Yang, S Q; Deng, B C; Pan, W; Wang, Y L; Zhu, W P; Wu, J H; Li, Q; Gong, L H; Zhang, Y
• Is Part Of: IOP conference series. Volume 502(2019)
• Publication Date: 2019-04
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/502/1/012013
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: A full Localization 250W@4.5K helium cryogenic refrigerator, composed of a helium screw compressor and its oil-removal subsystem, six plate-fin cryogenic heat exchangers, two high speed turbine expanders, eight pneumatic valves and a vessel with heat load, was developed at TIPC. The high and low pressure can be maintained stable by adjusting the PI parameters of pneumatic valves. Commissioning full localization 250W@4.5K refrigerator system is discussed. 300~4.5K cool-down processes of cryogenic heat exchangers are present. The optimized cooling capacity of this refrigerator system is up to 317W at liquid helium teperature.