Abstract Thermoacoustic refrigerators and engines typically have no moving parts. Thus, these machines have the potential to be both simple and reliable. Thermoacoustic energy conversion is reasonably efficient and should be inexpensive in mass production. The analysis of a traveling wave thermoacoustic engine based on a thermoacoustic distributed-parameter network model is presented. The continuity and momentum equations of an oscillating gas, particularly the oscillating pressure and oscillating volume flow rate of acoustic waves, have analogies in AC electrical circuits. The pressure resembles the voltage, and the volume flow rate resembles the current. A complete distributed-parameter network model has been achieved and the results are presented. The results indicate that the distributed-parameter method provides reasonable and useful simulations capable of being extended to a variety of operating conditions. Our goals include an improved understanding of the fundamental thermoacoustic processes and the development of new thermoacoustic refrigerators and heat engines with increased power density, temperature span, and efficiency, and the commercialization of those devices.
Thermodynamic Analysis of a Traveling Wave Thermoacoustic Device by Use of a Distributed-Parameter Method
Cryocoolers 12 ; 431-438
2003-01-01
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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