Results 11 to 20 of about 1,132 (180)

Sampling in thermoacoustic tomography [PDF]

open access: yesJournal of Inverse and Ill-posed Problems, 2020
AbstractWe explore the effect of sampling rates when measuring data given byMffor special operatorsMarising in Thermoacoustic Tomography. We start with sampling requirements onMfgivenfsatisfying certain conditions. After this we discuss the resolution limit onfposed by the sampling rate ofMfwithout assuming any conditions on these sampling rates.
openaire   +3 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

CFD Modeling of Thermoacoustic Energy Conversion: A Review

open access: yesEnergies, 2022
In this article, a comprehensive review of the computational fluid dynamics (CFD)-based modeling approach for thermoacoustic energy conversion devices is proposed.
Armando Di Meglio, Nicola Massarotti
doaj   +1 more source

Thermoacoustic Soret separation

open access: yesThe Journal of the Acoustical Society of America, 2022
In a fluid mixture in a channel with an axial time-averaged temperature gradient, high-amplitude oscillating flow can greatly increase the axial flux of thermal diffusion (Soret) separation of the components of the mixture. The enhancement occurs when the oscillating lateral temperature gradient greatly exceeds the axial gradient, causing a large ...
G W, Swift, D A, Geller
openaire   +2 more sources

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

A Review of Recent Advances in Emerging Alternative Heating and Cooling Technologies

open access: yesEnergies, 2021
The heating and cooling industry underpins everything we do, e.g., manufacturing, commercial and residential applications. Many of these applications invariably use mechanical refrigeration technologies, consequently contributing significantly to the ...
Mubarak Ismail   +2 more
doaj   +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

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

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