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Evaluation of thermoacoustic cycles for cooling applications.

Author(s) : PAEK I., BRAUN J. E., MONGEAU L.

Summary

The most promising applications for thermoacoustic cooling are investigated from the perspective of the thermodynamic second law efficiency in this paper. A design optimization programme interacting with the thermoacoustic simulation program known as DELTAE was developed. Then it was applied to two of the most common configurations for standing-wave thermoacoustic coolers in order to determine the best possible second law efficiencies for various temperature spans between hot-side and cold-side stack-end temperatures. It was found that the second law efficiency of thermoacoustic coolers increases with temperature span and reaches a maximum for temperature lifts around 80°C. Analysis of the results and the losses clearly show that from an efficiency perspective, thermoacoustics performs well for refrigeration applications but poorly for both air-conditioning and cryogenic cooling. The second law efficiencies determined from measurements for various thermoacoustic coolers developed so far show a similar trend.

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Details

  • Original title: Evaluation of thermoacoustic cycles for cooling applications.
  • Record ID : 2007-1571
  • Languages: English
  • Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2006/07/17

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