Results 11 to 20 of about 11,617 (186)

Encapsulated thermoacoustic projector based on freestanding carbon nanotube film [PDF]

open access: yes, 2017
A suspended nanotube film (or films) producing sound by means of the thermoacoustic (TA) effect is encapsulated between two plates, at least one of which vibrates, to enhance sound generation efficiency and protect the film.
Aliev, Ali E., Baughman, Ray H.
core   +1 more source

Thermoacoustic phased-array radiators – Theory, characteristics, and applications

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Standard non-invasive acoustic non-destructive testing (NDT) methods like testing in contact or using immersion tank arrangements are limited since the probes need to be in direct contact with the test piece or using a fluid as coupling media.
Daniel Hufschläger   +4 more
doaj   +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]

open access: yes, 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

Exploration of a Model Thermoacoustic Turbogenerator with a Bidirectional Turbine

open access: yesPolish Maritime Research, 2023
The utilisation of the thermal emissions of modern ship power plants requires the development and implementation of essentially new methods of using low-temperature waste heat.
Korobko Volodymyr   +2 more
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

A high efficiency hybrid stirling-pulse tube cryocooler

open access: yesAIP Advances, 2015
This article presented a hybrid cryocooler which combines the room temperature displacers and the pulse tube in one system. Compared with a traditional pulse tube cryocooler, the system uses the rod-less ambient displacer to recover the expansion work ...
Xiaotao Wang   +6 more
doaj   +1 more source

Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]

open access: yes, 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

Heat-driven Thermoacoustic Cooling Technology: A Review and Perspective

open access: yesZhileng xuebao, 2022
Heat-driven thermoacoustic cooling technology utilizes the acoustic power generated by a thermoacoustic engine to drive a thermoacoustic cooler to realize thermal–acoustic–cooling energy conversion.
Xu Jingyuan, Luo Ercang
doaj  

Numerical investigation on a travelling wave thermoacoustic heat pump

open access: yesJournal of Thermal Science and Technology, 2018
A thermoacoustic heat pump heater is a device having the ability to produce heat from acoustic power. The heat pump investigated was composed of an acoustic driver, a branched tube, and a looped tube.
Maroua BEN NASR   +3 more
doaj   +1 more source

Synchronization framework for modeling transition to thermoacoustic instability in laminar combustors

open access: yes, 2020
We, herein, present a new model based on the framework of synchronization to describe a thermoacoustic system and capture the multiple bifurcations that such a system undergoes.
Saha, Abhishek   +3 more
core   +1 more source

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