ECN publication
Title:
Study of a thermoacoustic-Stirling cooler
 
Author(s):
 
Published by: Publication date:
ECN Energy Efficiency in Industry 8-5-2007
 
ECN report number: Document type:
ECN-M--07-038 Conference Paper
 
Number of pages: Full text:
21 Download PDF  

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

Abstract:
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.


Back to List