Study of a coaxial thermoacoustic-Stirling cooler.

Author(s) : TIJANI M. E. H., SPOELSTRA S.

Type of article: Article


A coaxial thermoacoustic-Stirling cooler is built and performance measurements are performed. The cooler uses the acoustic power produced by a linear motor to pump heat through a regenerator from a cold heat exchanger to an ambient one. The cooler incorporates a compact acoustic network to create the travelling-wave phasing necessary for the operation in a Stirling cycle. The network has a coaxial geometry instead of the toroidal one usually used in such systems. The design, construction and performance measurements of the cooler are presented. A measured COP relative to Carnot of 25% and a low temperature of -54°C are achieved by the cooler. This efficiency surpasses the performance of the most efficient standing-wave cooler by almost a factor of two. [Reprinted with permission from Elsevier. Copyright, 2008].


  • Original title: Study of a coaxial thermoacoustic-Stirling cooler.
  • Record ID : 2008-1449
  • Languages: English
  • Source: Cryogenics - vol. 48 - n. 1-2
  • Publication date: 2008/01


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