|
Titel:
|
|
Study of a coaxial thermoacoustic-Stirling cooler
|
|
|
|
Auteur(s):
|
|
|
|
|
|
Gepubliceerd door:
|
Publicatie datum:
|
|
ECN
Energie Efficiency in de Industrie
|
8-5-2008
|
|
|
|
ECN publicatienummer:
|
Publicatie type:
|
|
ECN-W--08-013
|
Artikel wetenschap tijdschrift
|
|
|
|
Aantal pagina's:
|
|
|
7
|
|
Gepubliceerd in: Cryogenics (Elsevier), , 2008, Vol.vol. 48, p.77-82.
Samenvatting:
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 traveling-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 coefficient of performance relative to Carnot of 25% and a low temperature of -54 degrees C are achieved by the cooler. This efficiency surpasses the performance of the most efficient standing-wave cooler by almost a factor of two.
Terug naar overzicht.