2004
DOI: 10.1121/1.1649333
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Experimental studies of a thermoacoustic Stirling prime mover and its application to a cooler

Abstract: An acoustic field spontaneously induced in a thermoacoustic prime mover consisting of a looped tube and resonator is determined through simultaneously measurements of pressure P and velocity U. A thermal efficiency of the thermoacoustic prime mover of this type has been reported to reach 30%. The measurements of the acoustic field in the present system revealed that a phase lead of U relative to P takes a negative value of about Ϫ20°in the regenerator where the output power of the prime mover is generated. It … Show more

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Cited by 103 publications
(64 citation statements)
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“…This means that energy conversion between sound energy and heat energy is introduced. This mutual energy conversion of sound energy and heat energy is the thermoacoustic effect [6].…”
Section: Thermoacoustic Effectmentioning
confidence: 99%
“…This means that energy conversion between sound energy and heat energy is introduced. This mutual energy conversion of sound energy and heat energy is the thermoacoustic effect [6].…”
Section: Thermoacoustic Effectmentioning
confidence: 99%
“…Thermoacoustic systems [1][2][3][4][5][6][7] are increasingly attractive as a technology for utilizing waste thermal energy. The systems convert heat to sound wave mutually and cool or generate electricity by using waste thermal energy.…”
Section: Introductionmentioning
confidence: 99%
“…The increase of I was demonstrated when the traveling wave flows up a positive temperature gradient from measurements of I in regions outside the temperature gradients [2] [3]. However, there has been no report directly observing how the energy conversion takes place in the tube having temperature gradients.…”
Section: Introductionmentioning
confidence: 99%