Energies, 2023 Thermoacoustic instabilities in gasturbine combustor systems can be predicted in the design phase with a thermoacoustic network model. In this model, the coupling between acoustic pressure fluctuations and the combustion rate is described by the Flame ...
Mehmet Kapucu, Jim B. W. Kok
doaj +1 more source
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
core +1 more source
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
core +1 more source
Thermoacoustic stability prediction using classification algorithms
Data-Centric Engineering, 2022 Predicting the occurrence of thermoacoustic instabilities is of major interest in a variety of engineering applications such as aircraft propulsion, power generation, and industrial heating. Predictive methodologies based on a physical approach have been
Renaud Gaudron, Aimee S. Morgans
doaj +1 more source
Frequency domain and time domain analysis of thermoacoustic oscillations with wave-based acoustics [PDF]
, 2015 Many thermoacoustic systems exhibit rich nonlinear behaviour. Recent studies show that this nonlinear dynamics can be well captured by low-order time domain models that couple a level set kinematic model for a laminar flame, the $G$-equation, with a ...
Illingworth, SJ, Juniper, MP, Orchini, A
core +1 more source
Applied Sciences, 2017 Heat exchangers (HXs) constitute key components of thermoacoustic devices and play an important role in determining the overall engine performance. In oscillatory flow conditions, however, standard heat transfer correlations for steady flows cannot be ...
Antonio Piccolo +3 more
doaj +1 more source
A numerical model of thermoacoustic heat pumping inside a compact cavity
Acta Acustica, 2023 This paper presents a numerical study of thermoacoustic heat pumping along a stack of solid plates placed inside a compact cavity submitted to an oscillating flow.
Fraigneau Yann +2 more
doaj +1 more source
Features thermoacoustic thermal machines using low-temperature thermal energy source [PDF]
, 2016 Розглянути питання розробки ефективних систем використання низькотемпературних теплових ресурсів з застосуванням термоакустичних теплових машин. Проведено аналіз наявних теоретичних моделей термоакустичних апаратів, виявлені фактори, які суттєво ...
Коробко, Володимир Владиславович
core +1 more source
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
doaj +1 more source
Fast acoustic streaming in standing waves : Generation of an additional outer streaming cell [PDF]
, 2013 Rayleigh streaming in a cylindrical acoustic standing waveguide is studied both experimentally and numerically for nonlinear Reynolds numbers from 1 to 30.
Catherine Weisman +7 more
core +6 more sources