Liquid metal thermoacoustic engine [PDF]
The Journal of the Acoustical Society of America, 1986 A liquid metal thermoacoustic engine is studied both theoretically and experimentally. This type of engine promises to produce large quantities of electrical energy from heat at modest efficiency with no moving parts except the acoustic oscillations in the liquid metal.
Swift, G.W. +2 more
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Empirical Modeling of Subcritical Hopf Bifurcation of Thermoacoustic Stirling Engine
AerospaceThis study models the subcritical Hopf bifurcation in thermoacoustic Stirling engines using the Stuart–Landau model, highlighting the role of nonlinear dynamics. By inducing self-sustained oscillations and measuring pressure fluctuations across different
Chuan-Heng Lai, Shu-Han Hsu
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Abrupt reduction of the critical temperature difference of a thermoacoustic engine by adding water
AIP Advances, 2015 The critical temperature difference (ΔTcri) that causes a thermoacoustic spontaneous oscillation is reduced by the presence of water in the working fluid of a thermoacoustic engine.
K. Tsuda, Y. Ueda
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Demonstration of flywheel-based travelling-wave thermoacoustic engine [PDF]
E3S Web of Conferences, 2021 We report test results on a thermoacoustic engine having a piston-crank-flywheel assembly. The engine maintained steady rotation states when the heating temperature was increased more than 114°C.
Watanabe Takumaru +3 more
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Optimization of a Thermoacoustic Engine with a Complex Heat Transfer Exponent
Entropy, 2003 : Heat transfer between a thermoacoustic engine and its surrounding heat reservoirs can be out of phase with oscillating working gas temperature. The paper presents a generalized heat transfer model using a complex heat transfer exponent.
Lingen Chen +4 more
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Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]
, 2010 This paper aims at evaluating three selected low-cost porous materials from the point of view of their suitability as regenerator materials in the design of thermoacoustic travelling-wave engines.
Yu, Z. +11 more
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Experimental Investigation of a Modular Thermoacoustic Engine
, 2021 A modular thermoacoustic engine (TAE) has been designed and fabricated providing a reliable bench test to study thermoacoustic instabilities. Thermoacoustic engines belong to a class of heat engines that produce acoustic power as a result of a fluid ...
Karl M Jantze (6639953)
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Numerical computation for parallel plate thermoacoustic heat exchangers in standing wave oscillatory flow [PDF]
, 2011 A simplified computational method for studying the heat transfer characteristics of parallel plate thermoacoustic heat exchangers is presented. The model integrates the thermoacoustic equations of the standard linear theory into an energy balance-based ...
Piccolo, Antonio, A. Piccolo
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Heat transfer processes in parallel-plate heat exchangers of thermoacoustic devices - Numerical and experimental approaches [PDF]
, 2012 This paper addresses the issues of heat transfer in oscillatory flow conditions, which are typically found in thermoacoustic devices. The analysis presented concerns processes taking place in the individual "channels" of the parallel-plate heat ...
Piccolo, A +3 more
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International Journal of Thermofluids, 2023 Performance of thermoacoustic (TA) systems are very complex, and their performance optimization is a difficult task, and most TA systems have relatively very low efficiencies.
Karim Mazaheri, Mahyar Fazli
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