Influence of the cold end heat exchanger geometry on the pulse tube cooler performance

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作者：
机构：
[1] [1,Pang, Xiao-Min
[2] Wang, Xiao-Tao
[3] Dai, Wei
[4] Luo, Er-Cang
[5] 1,Zhang, Xiang-Zheng
来源：
Wang, Xiao-Tao (xtwang@mail.ipc.ac.cn) | 1600年 / Science Press卷 / 37期
关键词：
Cooling Capacity - Cooling performance - Displacement amplitudes - End heat exchangers - Gas gaps - Length - Pulse tube coolers - System efficiency;
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摘要：
Improving the performance of the pulse tube cooler is one of the important targets of recent study. Besides the regenerator and phase shifters, heat exchangers also play important roles, especially the cold end heat exchanger which has strong influence on the system efficiency and cooling capacity. This paper mainly studied the influence of the cold end heat exchanger geometry such as length and the gas gap geometry on the cooling performance of a 100 Hz pulse tube cooler. In this study, the system performs better when the length of the cold end exchanger is around the displacement amplitude of gas parcels. With the same heat exchange area, increasing the gas gap appropriately is beneficial to the cooling capacity. © 2016, Science Press. All right reserved.
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