Results 1 to 10 of about 1,121 (166)

The reasonableness and feasibility of replacing standing wave vibration with air piston mode vibration in thermoacoustic refrigerator [PDF]

open access: yesHeliyon
On 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
doaj   +2 more sources

Study on heat transfer law of moving temperature variable gas in thermoacoustic plate stack [PDF]

open access: yesScientific Reports
Taking gas and the heat transfer process between gas and plate as the research object, the mathematical model of heat transfer in one working cycle by moving variable temperature air mass under the action of sound field is established, which provides a ...
Jianxin Wang, Xiangbin Liu
doaj   +2 more sources

Analysis of forming mechanism and influencing factors of thermoacoustic plate end temperature difference [PDF]

open access: yesScientific Reports
In order to explore the formation mechanism and influencing factors of the temperature difference between two ends of the plate stack, an expression of the temperature change of the stack with time was established based on the two-dimensional heat ...
Jianxin Wang, Xiangbin Liu, Nan Meng
doaj   +2 more sources

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

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

Design and Optimization of a Standing-Wave Thermoacoustic Refrigerator Using DELTAEC

open access: yesDiyala Journal of Engineering Sciences, 2023
Thermoacoustic refrigeration is one of the best alternatives to conventional refrigeration systems due to the use of inert gases such as helium or air.
Mohanad Q. Kamil   +2 more
doaj   +1 more source

Exergy-based methodology to develop design guidelines for performance optimization of a coupled co-axial thermoacoustic refrigerator

open access: yesInternational Journal of Thermofluids, 2023
Performance of thermoacoustic (TA) systems are very complex, and their performance optimization is a difficult task, and most TA systems have relatively very low efficiencies.
Karim Mazaheri, Mahyar Fazli
doaj   +1 more source

Modular thermoacoustic refrigerator [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1993
A thermoacoustic refrigerator was built to explore scaling to large heat flux. The refrigerator was constructed according to a modular design so that various stack, heat exchanger, and resonator sections are easily interchangeable. The resonator is driven by a commercial 10-in. woofer. Initial tests, using pure helium gas as the working fluid and steel
Steven R. Murrell, George Mozurkewich
openaire   +1 more source

Effect of the blockage ratios of circular stack on the performance of the air-based standing wave thermoacoustic refrigerator using heat pipe

open access: yesCase Studies in Thermal Engineering, 2021
In this study, the coefficient of performance (COP) and relative coefficient of performance (COPR) of an air-based standing wave thermoacoustic refrigerator (ASWTAR) was investigated.
Praitoon Chaiwongsa, Somchai Wongwises
doaj   +1 more source

PC-TAS: A design environment for phase-change and classical thermoacoustic systems

open access: yesSoftwareX, 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

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