Influence of the Water-Cooled Heat Exchanger on the Performance of a Pulse Tube Refrigerator
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Advanced Thermodynamic Systems and Engines · Spacecraft and Cryogenic Technologies · Refrigeration and Air Conditioning Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
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
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