Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7915664 | Cryogenics | 2018 | 21 Pages |
Abstract
Temperature is an extremely important parameter for space-borne infrared detectors. To develop a quantum-well infrared photodetector (QWIP), a high-efficiency Stirling-type pulse tube cryocooler (PTC) has been designed, manufactured and experimentally investigated for providing a large cooling power at 40â¯K cold temperature. Simulated and experimental studies were carried out to analyse the effects of low temperature on different energy flows and losses, and the performance of the PTC was improved by optimizing components and parameters such as regenerator and operating frequency. A no-load lowest temperature of 26.2â¯K could be reached at a frequency of 51â¯Hz, and the PTC could efficiently offer cooling power of 3â¯W at 40â¯K cold temperature when the input power was 225â¯W. The efficiency relative to the Carnot efficiency was approximately 8.4%.
Keywords
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ankuo Zhang, Yinong Wu, Shaoshuai Liu, Biqiang Liu, Baoyu Yang,