Title:
Development of SITP’s Large Capacity High Frequency Coaxial Pulse Tube Cryocoolers
Development of SITP’s Large Capacity High Frequency Coaxial Pulse Tube Cryocoolers
Files
Authors
Dang, H. Z.
Wang, L. B.
Wu, Y. N.
Li, S. S.
Yang, K. X.
Shen, W. B.
Fu, H.
Wang, L. B.
Wu, Y. N.
Li, S. S.
Yang, K. X.
Shen, W. B.
Fu, H.
Authors
Advisors
Advisors
Associated Organizations
Organizational Unit
Series
Collections
Supplementary to
Permanent Link
Abstract
Large capacity high frequency single-stage coaxial inertance pulse tube cryocoolers have been developed and are becoming mature in SITP/CAS. The main objective of the development is to provide larger low-noise cooling powers in the range of 80-100 K for space-borne infrared detector systems. The design and performance optimization approaches are discussed, and the engineering models for them are in work. A split dual opposed piston linear compressor with a maximum swept volume of 8.2 cc is used, and the overall weight without cooler control electronics is below 7.0 kg. At present, the coolers have achieved over 12% of Carnot at 80 K, or 14% of Carnot at 100 K. The typical cooling performance of the coolers provides 5 W at 80 K or 8 W at 100 K with around 120 W of electric input power and a 313 K reject temperature. Approaches to further optimize the thermodynamic performance and detailed characterization tests are underway.
Sponsor
Date Issued
2008-05
Extent
Resource Type
Text
Resource Subtype
Proceedings