Results 1 to 10 of about 1,128 (182)
Laser‐Architected Shape‐Configurable Vertical Graphene Thermoacoustic Loudspeakers for 3D Acoustic Emission [PDF]
Advanced ScienceRecent advances in thermoacoustic (TA) loudspeakers have focused on freeform, conformal audio systems that enable conformal integration, spatial sound control, and seamless transformation between 2D and 3D geometries. However, their practical use remains
TaeGyeong Lim +11 more
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Development of closed-loop active control method for suppression of thermoacoustic instability using radial air micro-jets [PDF]
MethodsX, 2023 Thermoacoustic instabilities present in the combustor of power producing devices are having adverse effects on the performance. To avoid thermoacoustic instabilities, design of control method is very much essential.
Nilaj Deshmukh +5 more
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The reasonableness and feasibility of replacing standing wave vibration with air piston mode vibration in thermoacoustic refrigerator [PDF]
HeliyonOn the basis of analyzing the longitudinal forced vibration of the gas column in the resonator of a half-wavelength standing wave thermoacoustic refrigerator, the idea of replacing the standing wave vibration with the first-order piston mode vibration of
Jianxin Wang, Xiangbin Liu
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Case Studies in Thermal Engineering, 2023 The advantage of coupling different heat sources with each thermoacoustic core unit in a three-stage looped traveling-wave thermoacoustic system is used to solve the application problem of multiple waste heat sources.
Liu Liu, Jianchen Cai, Yingwen Liu
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Inverse Solution of Thermoacoustic Wave Equation for Cylindrical Layered Media
Frontiers in Physics, 2022 Thermoacoustic imaging is a crossbred approach taking advantages of electromagnetic and ultrasound disciplines, together. A significant number of current medical imaging strategies are based on reconstruction of source distribution from information ...
Demet Elmas, Banu Ünalmış Uzun
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The measurement of thermoacoustic phenomena using thermoacoustic couples [PDF]
The Journal of the Acoustical Society of America, 1989 The results of measurements of thermoacoustically generated temperature gradients in thermoacoustic couples (TACs) subjected to acoustic standing waves are reported. The value of the temperature gradient is a function of the acoustic pressure amplitude, mean gas pressure, type of gas, TAC construction, and its position in the standing wave ...
Anthony A. Atchley +2 more
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Evaluating the onset conditions of a thermoacoustic Stirling engine loaded with an audio loudspeaker
Frontiers in Thermal Engineering, 2023 This paper aims to evaluate the onset conditions of a thermoacoustic Stirling engine loaded with a commercially available audio loudspeaker. The thermoacoustic engine converts supplied heat power into mechanical power in the form of sound, without any ...
Shu-Han Hsu, Chuan-Heng Lai
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PC-TAS: A design environment for phase-change and classical thermoacoustic systems
SoftwareX, 2022 Thermoacoustic technology is a novel approach for high-efficiency, low-cost and environmentally-friendly electricity production, cooling and other applications. In particular, phase-change thermoacoustic conversion is a more recent addition to this field,
Rui Yang +4 more
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Sampling in thermoacoustic tomography [PDF]
Journal of Inverse and Ill-posed Problems, 2020 AbstractWe explore the effect of sampling rates when measuring data given byMffor special operatorsMarising in Thermoacoustic Tomography. We start with sampling requirements onMfgivenfsatisfying certain conditions. After this we discuss the resolution limit onfposed by the sampling rate ofMfwithout assuming any conditions on these sampling rates.
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Thermoacoustic Soret separation
The Journal of the Acoustical Society of America, 2022 In a fluid mixture in a channel with an axial time-averaged temperature gradient, high-amplitude oscillating flow can greatly increase the axial flux of thermal diffusion (Soret) separation of the components of the mixture. The enhancement occurs when the oscillating lateral temperature gradient greatly exceeds the axial gradient, causing a large ...
G W, Swift, D A, Geller
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