CFD simulation of a thermoacoustic engine with coiled resonator

Thermoacoustic energy conversion is based on the Stirling cycle. In their most basic forms, thermoacoustic devices are comprised of two heat exchangers, a porous medium, both placed inside a resonator. Work is created through the interaction of strong sound waves with the porous medium that is subje...

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Bibliographic Details
Published in:International communications in heat and mass transfer Vol. 37; no. 3; pp. 226 - 229
Main Authors: Zink, Florian, Vipperman, Jeffrey, Schaefer, Laura
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01.03.2010
Elsevier
Subjects:
Amplitudes
Applied sciences
CFD simulation
Computational methods in fluid dynamics
Cryogenics
Curvature
Curved
Energy
Energy. Thermal use of fuels
Engines
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Mathematical analysis
Mathematical models
Physics
Refrigerating engineering. Cryogenics. Food conservation
Resonator curvature
Resonators
Thermoacoustics
CFD simulation
Thermoacoustics
Resonator curvature
Resonator
Computational fluid dynamics
Numerical simulation
Thermoacoustic effect
Boundary condition
Refrigeration
Curvature
Modeling
ISSN:0735-1933, 1879-0178
Online Access:Get full text
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Summary:Thermoacoustic energy conversion is based on the Stirling cycle. In their most basic forms, thermoacoustic devices are comprised of two heat exchangers, a porous medium, both placed inside a resonator. Work is created through the interaction of strong sound waves with the porous medium that is subject to external heating. This work explores the effect of resonator curvature on the thermoacoustic effect. A CFD analysis of a whole thermoacoustic engine was developed and the influence of a curved resonator on the thermoacoustic effect is discussed. The variation of pressure amplitude and operating frequency serves as metrics in this investigation. It was found that the introduction of curvature affects the pressure amplitude achieved. Severely curved resonators also exhibited a variation in operating frequency.
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ISSN:0735-1933
1879-0178
DOI:10.1016/j.icheatmasstransfer.2009.09.001