Using a side-branched volume to tune the acoustic field in a looped-tube travelling-wave thermoacoustic engine with a RC load [PDF]
, 2017 Travelling-wave thermoacoustic engine utilises a compact acoustic network to obtain a right time-phasing between the acoustic velocity and pressure oscillations within the regenerator to force gas parcels to experience a Stirling-like thermodynamic cycle.
Al-Kayiem, Ali, Yu, Zhibin
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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.
Abduljalil, Abdulrahman S. +2 more
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Thermodynamic cycle of the traveling wave thermoacoustic engine
Case Studies in Thermal Engineering, 2022 The paper presents a new numerical solution as a method for the thermodynamic cycle of a thermoacoustic engine estimation. A mathematical solution for calculating the gas averaged velocity was developed. The proposed method uses acoustic impedance of the
G.V. Vorotnikov +2 more
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Introduction to thermoacoustic Stirling engines: First steps and praxis [PDF]
E3S Web of Conferences, 2021 The work focuses on the theoretical study and design of Thermoacoustic Stirling-Like Cycle Engines. One of the main goals of this study is to describe the application of a methodology for energy analysis and optimization of thermoacoustic devices.
Iniesta Carmen +4 more
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Measurements of the impedance matrix of a thermoacoustic core: Applications to the design of thermoacoustic engines [PDF]
The Journal of the Acoustical Society of America, 2013 The successful design of a thermoacoustic engine depends on the appropriate description of the processes involved inside the thermoacoustic core (TAC). This is a difficult task when considering the complexity of both the heat transfer phenomena and the geometry of the porous material wherein the thermoacoustic amplification process occurs.
Bannwart, Flavio +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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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
doaj +1 more source
Jet pumps for thermoacoustic applications: design guidelines based on a numerical parameter study [PDF]
, 2015 The oscillatory flow through tapered cylindrical tube sections (jet pumps) is characterized by a numerical parameter study. The shape of a jet pump results in asymmetric hydrodynamic end effects which cause a time-averaged pressure drop to occur under ...
ANSYS +8 more
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Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]
, 2014 This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Bloxsidge +48 more
core +5 more sources
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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