Abstract High frequency Stirling type pulse tube cryocoolers offer significant advantages in efficiency, size and reliability, over conventional Stirling coolers or low frequency GM type pulse tube refrigerators. This kind of cooler has potential application for HTS motors and generators. A baseline single stage Stirling type pulse tube cooler has been designed and constructed based on a thermodynamic model. An oil-free, linear motor driven compressor is used. The cooler has been tested for its cooldown and cooling capacity, with heat rejected by chilled water at 290 K. Initial testing indicates that the cooler can reach the best no load temperature of 37 K within 30 minutes and has a cooling capacity of about 50 W at 55 K and 140 watts at 80 K with an input power of 3.4 kW. 11% Carnot efficiency has been reached at 80 K. The dependency of cooler performance on pulse tube orientation and input power has been investigated. In addition, matching issues between cooler and compressor, and flow distribution issues within the pulse tube and regenerator, are discussed in the paper.
Development of a Single Stage Pulse Tube Refrigerator with Linear Compressor
Cryocoolers 13 ; 157-163
2005-01-01
7 pages
Article/Chapter (Book)
Electronic Resource
English
Development of a Single Stage Pulse Tube Refrigerator with Linear Compressor
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