Stirling-Type Pulse Tube Cryocooler with 1KW of Refrigeration at 77K
Stirling-Type Pulse Tube Cryocooler with 1KW of Refrigeration at 77K
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DOI：
10.1063/1.2908581
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发表时间：
2008-03
期刊：
影响因子：
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通讯作者：
S. A. Potratz;T. D. Abbott;M. Johnson;K. Albaugh
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文献类型：
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作者：
S. A. Potratz;T. D. Abbott;M. Johnson;K. Albaugh
普莱克斯公司研制成功了大容量斯特林型脉管制冷机。脉冲管制冷机的原型和初始生产模型的性能测试已经验证了使用CFIC Inc.的20kW双对置压力波发生器在77K下的制冷能力为1kW。这些结果是使用氮气过冷试验方法获得的。制冷机的设计采用了复杂的几何形状，成功地减少了其他流动和损失机制，限制了以前的大型脉冲管制冷机设计的性能。该装置的预期应用是用于商业HTS（高温超导）市场。目前的设计将部署在哥伦布，俄亥俄州的现场测试，可靠性性能将在一个操作HTS应用程序进行测量。
A large capacity Stirling-type pulse tube cryocooler has been successfully developed by Praxair Inc. Performance testing of both the prototype and initial production models of the pulse tube cryocooler has verified a refrigeration capacity of 1kW at 77K using a 20kW dual-opposed pressure wave generator from CFIC Inc. These results were obtained using nitrogen subcooling test methods. The cryocooler design incorporates sophisticated geometry to successfully minimize streaming other and loss mechanisms which have limited the performance of previous large pulse tube cryocooler designs. The intended application of this unit is for the commercial HTS (High Temperature Superconductivity) market. The current design will be deployed for field testing in Columbus, OH where reliability performance will be measured in an operating HTS application.