Results 1 to 10 of about 1,725 (197)

Experimental study of a bidirectional impulse turbine in a steady gas flow [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2021
Background and Objectives: The bidirectional impulse turbine can be used to generate electricity from the energy of sea waves or to convert acoustic energy into electrical energy in thermoacoustic generators.
Gorshkov, Ilya Borisovich   +1 more
doaj   +1 more source

Numerical simulation of thermoacoustic gas oscillations in a pipe with toroidal heat exchange elements

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
The paper simulates the modes of a gas flow in a pipe closed at one end and open to the atmosphere at the other end; for this purpose, a numerical solution of the system of Navier – Stokes equations in a two-dimensional axisymmetric formulation has been ...
Bulovich Sergei
doaj   +1 more source

Surface Acoustic Wave Induced Heat Knockdown of Caenorhabditis Elegans

open access: yesHittite Journal of Science and Engineering, 2021
Model organisms such as Caenorhabditis elegans are commonly used in discovering theunderlying mechanisms of human diseases. The field of microfluidics enables a plethora of tools for better studying these organisms.
Adem Özçelik
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

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

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

Monitoring Preferential Flow of Water in Sand Using Thermoacoustics Wave Imaging

open access: yesGeophysical Research Letters, 2023
Accurate predictions of fluid flow, mass transport, and reaction rates critically impact the efficiency and reliability of subsurface exploration and sustainable use of subsurface resources.
Chang Liu   +6 more
doaj   +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

Experimental Investigation on the Thermoacoustic Effect in Easily Accessible Porous Materials

open access: yesEnergies, 2020
Thermoacoustic devices are the systems which use acoustic power to transport heat through a stack in a resonance tube. The stack is one of the most important parts of the thermoacoustic systems.
Jakub Kajurek, Artur Rusowicz
doaj   +1 more source

A numerical study of the relation between the acoustic generator geometry and the heat transfer conditions [PDF]

open access: yesArchive of Mechanical Engineering, 2018
Modern gas turbine systems operate in temperatures ranging from 1200°C to even 1500°C, which creates bigger problems related to the blade material thermal strength.
Sebastian Rulik   +2 more
doaj   +1 more source

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