Encapsulated thermoacoustic projector based on freestanding carbon nanotube film [PDF]
, 2017 A suspended nanotube film (or films) producing sound by means of the thermoacoustic (TA) effect is encapsulated between two plates, at least one of which vibrates, to enhance sound generation efficiency and protect the film.
Aliev, Ali E., Baughman, Ray H.
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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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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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Numerical simulation of stages number influence to the characteristics of a looped tube thermoacoustic Stirling engine [PDF]
Известия Саратовского университета. Новая серия: Физика, 2021 Background and Objectives: The traveling wave thermoacoustic engine is a variation of the Stirling engine family. With an increase in the number of stages of a traveling wave thermoacoustic engine from one to four, an improvement in the characteristics ...
Gorshkov, Ilya Borisovich +1 more
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Design and experimental evaluation of a travelling wave thermoacoustic engine
Energy Reports, 2020 In a thermoacoustic engine, acoustic impedance plays a key role to improve the system performance. A matching stub is a component which can be applied to adjust the acoustic impedance.
Patcharin Saechan, Isares Dhuchakallaya
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Exploration of a Model Thermoacoustic Turbogenerator with a Bidirectional Turbine
Polish Maritime Research, 2023 The utilisation of the thermal emissions of modern ship power plants requires the development and implementation of essentially new methods of using low-temperature waste heat.
Korobko Volodymyr +2 more
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Thermoacoustic Engines and Refrigerators [PDF]
Physics Today, 1995 We ordinarily think of a sound wave in a gas as consisting of coupled pressure and displacement oscillations. However, temperature oscillations always accompany the pressure changes. The combination of all these oscillations, and their interaction with solid boundaries, produces a rich variety of “thermoacoustic” effects. Although these effects as they
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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
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Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers [PDF]
, 2012 The objectives of this paper are the description of azimuthal instability modes found in annular combus- tion chambers using two numerical tools: (1) Large Eddy Simulation (LES) methods and (2) acoustic solv- ers.
Gicquel, Laurent Y.M. +4 more
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Experimental results of a waste-heat powered thermoacoustic refrigeration system for ships
Science and Technology for Energy Transition, 2023 Greenhouse gas emissions are a major concern for maritime transport. The International Maritime Organization (IMO) presents Waste Heat Recovery Systems (WHRS) from engine exhaust gas as a viable solution to improve energy utilization and reduce ...
Thiaucourt Jonas +2 more
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