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ECN publicatie:
Study of a thermoacoustic-Stirling cooler
Gepubliceerd door: Publicatie datum:
ECN Energie Efficiency in de Industrie 8-5-2007
ECN publicatienummer: Publicatie type:
ECN-M--07-038 Conferentiebijdrage
Aantal pagina's: Volledige tekst:
21 Download PDF  (1134kB)

Gepresenteerd op: International congress on ultrasonics (ICU), Vienna, Austria, 9-12 april 2007.

A 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 traveling-wave phasing necessary to operate in a Stirling cycle. The network has a coaxial topology instead of the toroidal one usually used. The design, construction and performance measurements of the cooler are presented. A measured coefficient of performance 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.

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