High-availability single-stage Stirling coolers with high power density. Issue 1 (March 2020)

• Record Type: Journal Article
• Authors: Willems, D.; de Veer, B.; Arts, R.; Mullié, J.; Bollens, P.
• Is Part Of: IOP conference series. Volume 755:Issue 1(2020)
• Publication Date: 2020-03
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/755/1/012044
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Recent developments at Thales Cryogenics have been aimed at improving the performances of 100 W and 200 W input power class flexure bearing Stirling coolers. The aim of these developments has been twofold: To enable multi-year operation with a vanishingly small failure probability (high availability) and to extend the usable range down to below 42 K (low temperature). As the starting point for development, the LSF9589 and LSF9340/LSF9350 cooler ranges were selected. By performing these upgrades, the usability range of the cryocoolers is extended. Multiple upgrades will be shown such as tuning for low-temperature operations and material upgrades. Test results will be presented and potential future improvements will be discussed. The work performed was done for a variety of customers, with applications including nitrogen recondensers for zero boil-off dewars, high temperature superconducting filters, and low temperature longwave infrared detectors.