Results 1 to 10 of about 2,216 (204)

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

EFFECT OF DIFFERENT HEAT EXCHANGERS ON THE WASTE-HEAT DRIVEN THERMOACOUSTIC ENGINE [PDF]

open access: yesJournal of Engineering Science and Technology, 2016
To enhance the efficiency of the SCORE thermoacoustic engine, it is important to investigate the heat transfer between the bulge or theconvolution and the regenerator.
DAVID W. Y. KHOO, YOUSIF A. ABAKR
doaj   +1 more source

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

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

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

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

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

Numerical simulation of stages number influence to the characteristics of a looped tube thermoacoustic Stirling engine [PDF]

open access: yesИзвестия 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
doaj   +1 more source

Experimental results of a waste-heat powered thermoacoustic refrigeration system for ships

open access: yesScience 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
doaj   +1 more source

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