A computational model for two-stage 4K-pulse tube cooler: Part II. Predicted results |
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| Authors: | Y L Ju A T A M de Waele |
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| Affiliation: | (1) Cryogenic Laboratory, Chinese Academy of Sciences, P. O. Box 2711, 100080 Beijing, P.R. China;(2) Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, NL-5600 MB Eindhoven, the Netherlands |
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| Abstract: | The internal physical processes and performance of a two-stage pulse tube cooler operating at 4 K-temperature region are numerically
analyzed by a new mixed Eulerian-Lagrangian computational model. The detailed time-variations of gas temperature, pressure,
mass flow rate, enthalpy flow in a cycle, in the first and the second-stage regenerators are presented in the paper. The behavior
of the various gas elements, which enter the pulse tube from its cold end has been revealed and discussed. More attention
is paid to the effects of different regenerative materials on the performance of the 4 K two-stage pulse tube cooler. |
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| Keywords: | 4K-pulse tube cooler two-stage performance |
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