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Study on the miniature turbo-expander reverse Brayton cryocooler designed for operation at 100 K

  • Y. Hou
  • , T. Lai
  • , H. Zhao
  • , R. Chen
  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

For the demands of space application, the prototype of the reverse Brayton cycle cryocooler was developed. The designed lowest temperature of this cryocooler is 80 K and a cooling capacity of 10 W @ 100 K is expected. The main components of the cryocooler are a woven wire screen matrix heat exchanger and a gas bearing turbo-expander (GBTP). The heat transfer performance of a woven wire screen matrix heat exchanger was introduced; especially the overall performance of the miniature high speed turbo-expander was studied experimentally. A 9 mm diameter radial impeller is applied to drive the rotor and the normal speed of this GBTP is about 300,000 rpm. The experimental results show that the turbine maintains very stable running, small vibration and high efficiency. Keywords: Reverse Brayton cycle; Cryocooler; Turbo expander.

源语言英语
主期刊名12th CRYOGENICS 2012 - IIR International Conference, Proceedings
出版商International Institute of Refrigeration
457-461
页数5
ISBN(印刷版)9782913149939
出版状态已出版 - 2012
活动12th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2012 - Dresden, 德国
期限: 11 9月 201214 9月 2012

出版系列

姓名Refrigeration Science and Technology
2012
ISSN(印刷版)0151-1637

会议

会议12th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2012
国家/地区德国
Dresden
时期11/09/1214/09/12

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