Results 31 to 40 of about 1,121 (166)

Design Of Theoretically Optimal Thermoacoustic Cooling Device

open access: yesEPJ Web of Conferences, 2016
The aim of this article is to design theoretically optimal thermoacoustic cooling device. The opening chapter gives the reader brief introduction to thermoacoustic, specializing in the thermoacoustic principle in refrigerator regime.
Tisovský Tomáš, Vít Tomáš
doaj   +1 more source

Two-dimensional numerical simulations of nonlinear acoustic streaming in standing waves [PDF]

open access: yes, 2013
Numerical simulations of compressible Navier–Stokes equations in closed two-dimensional channels are performed. A plane standing wave is excited inside the channel and the associated acoustic streaming is investigated for high intensity waves, in the ...
BALTEAN-CARLÈS, Diana   +4 more
core   +5 more sources

Numerical Simulation of Thermoacoustic Wave Induced by Thermal Effects by Using Discontinuous Galerkin Method

open access: yesModelling and Simulation in Engineering, Volume 2018, Issue 1, 2018., 2018
This paper describes a numerical model based on discontinuous Galerkin method for thermoacoustic investigation. Numerical investigation was conducted to study the behaviour of thermoacoustic wave propagations induced by thermal effects in 2‐dimensional enclosure. The compressible Navier‐Stokes equations are used as the governing equations.
Pranowo Pranowo   +2 more
wiley   +1 more source

Thermodynamics Performance Analysis of Solar Stirling Engines

open access: yesInternational Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012
This paper provides numerical simulation and thermodynamic analysis of SOLO 161 Solar Stirling engine. Some imperfect working conditions, pistons′ dead volumes, and work losses are considered in the simulation process. Considering an imperfect regeneration, an isothermal model is developed to calculate heat transfer.
A. Asnaghi   +5 more
wiley   +1 more source

Fast acoustic streaming in standing waves : Generation of an additional outer streaming cell [PDF]

open access: yes, 2013
Rayleigh streaming in a cylindrical acoustic standing waveguide is studied both experimentally and numerically for nonlinear Reynolds numbers from 1 to 30.
Catherine Weisman   +7 more
core   +6 more sources

Enhancement of Heat Transfer by Ultrasound: Review and Recent Advances

open access: yesInternational Journal of Chemical Engineering, Volume 2011, Issue 1, 2011., 2011
This paper summarizes some applications of ultrasonic vibrations regarding heat transfer enhancement techniques. Research literature is reviewed, with special attention to examples for which ultrasonic technology was used alongside a conventional heat transfer process in order to enhance it.
Mathieu Legay   +5 more
wiley   +1 more source

Traveling-Wave Thermoacoustic Refrigerator

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2007
A new type of speaker-driven thermoacoustic refrigerator is described. By the measurement of the acoustic field formed in the refrigerator, it is shown that the refrigerator uses a traveling-acoustic wave for heat pumping through ideally reversible heat transfer. It is also shown that the efficiency of the refrigerator is improved by the suppression of
Yuki UEDA, Chisachi KATO
openaire   +2 more sources

Heat transfer processes in parallel-plate heat exchangers of thermoacoustic devices - Numerical and experimental approaches [PDF]

open access: yes, 2012
This paper addresses the issues of heat transfer in oscillatory flow conditions, which are typically found in thermoacoustic devices. The analysis presented concerns processes taking place in the individual "channels" of the parallel-plate heat ...
Jaworski, AJ, Piccolo, A
core   +2 more sources

Numerical Modeling and Performance Evaluation of Standing Wave Thermoacoustic Refrigerators with a Multi-Layered Stack

open access: yesEnergies, 2020
Thermoacoustic refrigerators have huge potential to replace conventional refrigeration systems as an alternative clean refrigeration technology. These devices utilize conversion of acoustic power and heat energy to generate the desired cooling. The stack
Umar Nawaz Bhatti   +3 more
doaj   +1 more source

Thermoacoustic Refrigeration System

open access: yes, 2018
Thermo acoustic is arecent phenomenon which is used to develop the engines and pumps. Thermo acoustic refrigeration is one such phenomenon that uses high intensity sound waves in a pressurized gas tube to pump heat from one place to other to produce refrigeration effect.
Miss.Kirti M. Deshmukh   +2 more
openaire   +1 more source

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