Results 1 to 10 of about 2,806 (227)

Standing-wave thermoacoustic engines [PDF]

open access: yesEPJ Web of Conferences, 2012
The aim of this study is mainly devoted to explain a thermoacoustic effect. We explore the basic principles of thermoacoustic engines and primarily we focus on a quarter-wavelength closed-open thermoacoustic engine as a prime mover, where temperature ...
Vestfálová Magda   +3 more
doaj   +2 more sources

Experiments and modelling of rate-dependent transition delay in a stochastic subcritical bifurcation. [PDF]

open access: yesR Soc Open Sci, 2018
Complex systems exhibiting critical transitions when one of their governing parameters varies are ubiquitous in nature and in engineering applications. Despite a vast literature focusing on this topic, there are few studies dealing with the effect of the
Bonciolini G, Ebi D, Boujo E, Noiray N.
europepmc   +3 more sources

Evaluating the onset conditions of a thermoacoustic Stirling engine loaded with an audio loudspeaker

open access: yesFrontiers 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
doaj   +1 more source

Traveling-wave thermoacoustic refrigerator with curved and tapered surfaces to minimize streaming

open access: yesInvention Disclosure, 2022
The present article describes a traveling-wave thermoacoustic refrigeration system driven by a thermoacoustic heat engine. The coupled engine-refrigerator system consists of a resonator tube, which the thermoacoustic engine and thermoacoustic ...
Mohsen Bahrami, Fathollah Ommi
doaj   +1 more source

Simplification of sound-pressure characteristics using narrow flow channels subject with temperature gradient [PDF]

open access: yesMATEC Web of Conferences, 2018
A thermoacoustic engine is one of promising system for utilization of unused energy. The object of this paper is to study the system of unused energy, such as heat energy and sound energy in noise using thermoacoustic engine. The thermoacoustic engine is
Kyoden Tomoaki
doaj   +1 more source

Assessing the Performance of Design Variations of a Thermoacoustic Stirling Engine Combining Laboratory Tests and Model Results

open access: yesMachines, 2022
The equations governing energy conversion in traveling wave thermoacoustic machines are affected by their multiphysics nature. Their theoretical study is complicated and, in order to obtain real results, it is necessary to resort to prototypes and ...
Carmen Iniesta   +3 more
doaj   +1 more source

Influence of Working Conditions on Parameters of Thermoacoustic Engine with Travelling Wave

open access: yesArchives of Acoustics, 2020
Thermoacoustic converters are devices for direct conversion of acoustic energy into thermal energy in the form of temperature difference, or vice versa – for converting thermal energy into an acoustic wave.
Andrzej Bogdan DOBRUCKI   +1 more
doaj   +1 more source

Structural optimization of resonance tubes for a looped thermoacoustic engine with multiple heat sources

open access: yesCase 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
doaj   +1 more source

Thermal Management System Optimization for a Parallel Hybrid Aircraft Considering Mission Fuel Burn

open access: yesAerospace, 2022
Electrified aircraft propulsion enables new aircraft designs with fewer emissions. One challenge of electrified architectures is handling the electrical components’ waste heat.
Eytan J. Adler   +2 more
doaj   +1 more source

NUMERICAL MODELLING OF THERMOACOUSTIC PHENOMENON AS CONTRIBUTION TO THERMOACOUSTIC ENGINE MODEL

open access: yesTASK Quarterly, 2010
The presented paper shows our first step into the numerical modelling of the thermoacoustic phenomenon. The thermoacoustic effect has a great application potential, for instance, in thermoacoustic engines or thermoacoustic mixture separation.
LESZEK REMIORZ   +2 more
doaj   +1 more source

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