Results 31 to 40 of about 681 (220)

Study of Standing-Wave Thermoacoustic Electricity Generators for Low-Power Applications

open access: yesApplied Sciences, 2018
This paper is concerned with the study of low-cost, low-power thermoacoustic electricity generators. Based on target electrical output power values of 50 and 100 W, three standing wave prototypes (of both one-stage and two-stage prototypes) integrating a
Antonio Piccolo
doaj   +1 more source

Acoustic field improvement through adjustable resonator to enhance the performance of thermoacoustic-Stirling engine

open access: yesEnergy Reports, 2022
In this study, the simulation and experiment of a thermoacoustic Stirling heat engine (TASHE) with a phase-adjuster are demonstrated. The phase-adjuster is used as a tool to tune the acoustic field of the TASHE in order to maintain the high performance ...
Isares Dhuchakallaya   +2 more
doaj   +1 more source

Physics-Based Statistical Learning in Thermoacoustics

open access: yes, 2022
Thermoacoustic oscillations arise because of the interaction between acoustic waves inside a duct or a combustion chamber, and heat release rate oscillations at the flame or heater location.

core   +1 more source

Adjoint Methods as Design Tools in Thermoacoustics

open access: yes, 2019
In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple with acoustic pressure oscillations. If the heat release is sufficiently in phase with the pressure, these oscillations can grow, sometimes with catastrophic ...
,, Magri, L
core   +2 more sources

Degenerate perturbation theory in thermoacoustics: High-order sensitivities and exceptional points [PDF]

open access: yes, 2020
In this study, we connect concepts that have been recently developed in thermoacoustics, specifically (i) high-order spectral perturbation theory, (ii) symmetry-induced degenerate thermoacoustic modes, (iii) intrinsic thermoacoustic modes and (iv ...
Moeck J. P.   +4 more
core   +3 more sources

COMSOL's New Thermoacoustics Interface and Computationally Efficient Alternative Formulations for FEM [PDF]

open access: yes, 2020
: Three efficient alternatives to the model in COMSOL's thermoacoustics interface are presented. The higher efficiency of these models are explained from theory and are demonstrated by means of two ...
W R Kampinga, Y H Wijnant
core  

Mathematical aspects of thermoacoustics [PDF]

open access: yes, 2009
This thesis addresses the mathematical aspects of thermoacoustics, a subfield within physical acoustics that comprises all effects in which heat conduction and entropy variations of the gaseous medium play a role. We focus specifically on the theoretical
Panhuis, in 't, P.H.M.W.   +1 more
core   +1 more source

Advancements in thermoacoustic technology: a comprehensive review and analysis of recent research

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Thermoacoustic technology attracts significant attention from researchers due to its high reliability, environmentally friendly operation, and less maintenance.
Mahesh Krishna Gaikwad   +6 more
doaj   +1 more source

Energy and Efficiency Evaluation of Feedback Branch Design in Thermoacoustic Stirling-Like Engines

open access: yesEnergies, 2019
Stirling-like thermoacoustic generators are external combustion engines that provide useful acoustic power in the absence of moving parts with high reliability and respect for the environment.
Carmen Iniesta   +3 more
doaj   +1 more source

Laser‐Architected Shape‐Configurable Vertical Graphene Thermoacoustic Loudspeakers for 3D Acoustic Emission

open access: yesAdvanced Science, Volume 13, Issue 18, 27 March 2026.
A dual‐laser‐architected vertical graphene film enables high‐performance, morphologically reconfigurable thermoacoustic loudspeakers.The vertically aligned graphene structures combine efficient heat dissipation, thickness‐independent SPL, and kirigami‐driven 3D transformations, offering shape‐programmable, stretchable, and omnidirectional acoustic ...
TaeGyeong Lim   +11 more
wiley   +1 more source

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