2004•TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)Open access

Thermodynamical Classification of Thermoacoustic Phenomena and Necessary Conditions for Thermoacoustic Heat-engines

Akira Tominaga

Abstract

Thermoacoustic pheomena are classified into heat-pumping, prome-mover and dream-pipe including simple heat-conduction. Necessary conditions for thermoacoustic heat-engines are discussed using the first and second laws of thermodynamics and thermoacoustic theory. These conditions restirict possible regions of the temperature gradient and the phase difference between oscillations of pressure and displacement.

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Key concepts: Thermoacoustic heat engine, Thermoacoustics, Heat engine, Thermal conduction, Thermodynamics, Mechanics, Temperature gradient, Materials science