Proceedings of the 14th International Cryocooler Conference: Trollier

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Design of a Large Heat Lift 40 K to 80 K Pulse Tube Cryocooler for Space Applications

T. Trollier¹, J. Tanchon¹, J. Buquet¹, A. Ravex¹, I. Charles², A. Coynel², L. Duband², E. Ercolani², L. Guillemet², J. Mulli³, J. Dam³, T. Benschop³, M. Linder⁴
¹Air Liquide, Sassenage, France, ²CEA, Grenoble, France, ³THALES Cryogenics, The Netherlands, ⁴ESA/ESTEC, The Netherlands

Abstract

A Large heat lift Pulse Tube Cooler (LPTC) is under development in partnership with AL/ DTA, CEA/SBT and THALES Cryogenics. The engineering model is expected to provide 2.3 W at 50 K at a 10Â°C rejection temperature and 160 watts of electrical input power to the compressor. The split coaxial design of the pulse tube cold finger and the moving magnet linear motor compressor design will be presented. The expected thermal and mechanical performances will be also discussed. The engineering model will be delivered to ESA/ESTEC in October 2006 after completion of a qualification test program. This work is funded by the European Space Agency (ESA/ESTEC Contract N^o18433/04/NL/AR) for future earth observation instrument missions.