Journal ArticleDOI
Multi-physics coupling in thermoacoustic devices: A review
TLDR
In this paper, a comprehensive review of the multi-physics coupling effects, namely, thermal-acoustic coupling, acoustic-mechanical coupling and mechanical-electric coupling, inside thermoacoustic devices including thermo-acoustically-driven refrigerators, etc.Abstract:
Latest developments in thermoacoustic devices have demonstrated comparable power output and efficiency, but higher reliability and lower cost when compared to conventional low-grade heat recovery technologies. A good coupling between multiple physical fields plays a pivotal role in realizing these potentials. This article provides a comprehensive review of the multi-physics coupling effects, namely, thermal-acoustic coupling, acoustic-mechanical coupling and mechanical-electric coupling, inside thermoacoustic devices including thermoacoustic engines, thermoacoustic electric generators, thermoacoustically-driven refrigerators, etc. The basic principles, operating characteristics, design strategies and future prospects are discussed individually for each coupling effect. System-level design techniques and synthetic optimization methodologies in consideration of the multi-physics coupling effects are presented. This review work gives insights into the underlying mechanisms of various coupling effects in thermoacoustic devices and provides guidelines for improvements of modern thermoacoustic technologies for low-grade thermal energy recovery, refrigeration and electric power generation purposes.read more
Citations
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Journal ArticleDOI
Large-eddy simulations of self-excited thermoacoustic instability in a premixed swirling combustor with an outlet nozzle
TL;DR: In this paper , a large-eddy simulation was performed on a fully three-dimensional compressible flow via an open-source platform, OpenFOAM, and the fundamental physics of the interaction of the swirling flame, either constructively or destructively, to the acoustic pressure perturbations by examining the local Rayleigh criterion/index.
Posted Content
Topological Phononic Logic.
TL;DR: In this article, a topological logic gate for ultrasound was demonstrated by exploiting the large phase space of accidental degeneracies in a honeycomb lattice, and six physical parameters were used to tune these parameters to create a phononic switch between topological waveguide and a trivial insulator that can be triggered by ultrasonic heating.
Journal ArticleDOI
Topological Phononic Logic
TL;DR: In this article , a topological logic gate for ultrasound was proposed by exploiting the large phase space of accidental degeneracies in a honeycomb lattice, which can be broken by six physical parameters and used to create a phononic switch that transitions between a topology waveguide and a trivial insulator by ultrasonic heating.
Journal ArticleDOI
Study of a gas-liquid-coupled heat-driven room-temperature thermoacoustic refrigerator with different working gases
TL;DR: In this article, a gas-liquid-coupled heat-driven thermo-acoustic refrigerator with different working gases, i.e., hydrogen, helium, nitrogen and argon, was investigated under onset and steady operations.
References
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Book
Metaheuristics: From Design to Implementation
TL;DR: This book provides a complete background on metaheuristics and shows readers how to design and implement efficient algorithms to solve complex optimization problems across a diverse range of applications, from networking and bioinformatics to engineering design, routing, and scheduling.
Journal ArticleDOI
A Review of Piezoelectric Energy Harvesting Based on Vibration
TL;DR: In this article, a review of the reported piezoelectric energy harvesting from vibration is presented, where various types of vibration devices, piezoceramics and mathematical modeling of vibrational energy harvesting are reviewed.
Proceedings Article
Thermoacoustic engines
W. P. Arnott,R. Raspet,H.E. Bass +2 more
TL;DR: In this paper, an approximate analysis of energy flow and acoustical measurements of a thermoacoustic prime mover with arbitrary cross-sectional geometry is given. But this analysis is restricted to the case of TAEs with circular or parallel slit pore geometry.
Journal ArticleDOI
Thermoacoustics: A Unifying Perspective for Some Engines and Refrigerators
TL;DR: The Atomic Processes in Plasmas Conference as mentioned in this paper is a bi-annual international conference on topics covering high-energy density plasmas, magnetically confined fusion, astrophysical plasms, fundamental atomic data and advanced modeling and plasma diagnostics, where international researchers share cutting-edge results in plasma creation, plasma experiments and plasma modeling.