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Appl. Sci. 2017, 7(3), 229;

Influence of the Water-Cooled Heat Exchanger on the Performance of a Pulse Tube Refrigerator

TKey Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
The College of Materials Science and Opto-electronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Author to whom correspondence should be addressed.
Academic Editor: Artur Jaworski
Received: 4 January 2017 / Revised: 8 February 2017 / Accepted: 23 February 2017 / Published: 28 February 2017
(This article belongs to the Special Issue Heat Transfer Processes in Oscillatory Flow Conditions)
Full-Text   |   PDF [3041 KB, uploaded 28 February 2017]   |  


The water-cooled heat exchanger is one of the key components in a pulse tube refrigerator. Its heat exchange effectiveness directly influences the cooling performance of the refrigerator. However, effective heat exchange does not always result in a good performance, because excessively reinforced heat exchange can lead to additional flow loss. In this paper, seven different water-cooled heat exchangers were designed to explore the best configuration for a large-capacity pulse tube refrigerator. Results indicated that the heat exchanger invented by Hu always offered a better performance than that of finned and traditional shell-tube types. For a refrigerator with a working frequency of 50 Hz, the best hydraulic diameter is less than 1 mm. View Full-Text
Keywords: heat exchanger; pulse tube refrigerator; shell-tube types heat exchanger; pulse tube refrigerator; shell-tube types

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Wang, W.; Hu, J.; Xu, J.; Zhang, L.; Luo, E. Influence of the Water-Cooled Heat Exchanger on the Performance of a Pulse Tube Refrigerator. Appl. Sci. 2017, 7, 229.

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