Results 91 to 100 of about 681 (220)

Boundaries of thermoacoustic instability in the thermoacoustic engine with cryogenic cooling [PDF]

Journal International Academy of Refrigeration, 2020
E.A. Zinoviev, G.V. Vorotnikov, A.I. Dovgyallo, S.O. Nekrasova   +3 more
openaire   +1 more source

Numerical Solution of the Inverse Thermoacoustics Problem Using QFT and Gradient Method

Fractal and Fractional
In this research, we consider the inverse problem for the wave equation under an unknown initial condition. A generalized solution to the direct problem was formulated, its correctness was established, and the stability assessment was obtained.
Syrym E. Kasenov, Aigerim M. Tleulesova, Almas N. Temirbekov, Zholaman M. Bektemessov, Rysbike A. Asanova   +4 more
doaj   +1 more source

Adjoint-accelerated Bayesian inference in thermoacoustics

We demonstrate a new approach to thermoacoustic modelling, in which we use an efficient Bayesian inference framework to assimilate experimental data into thermoacoustic models.

core   +1 more source

Environmentally friendly thermoacoustics refrigeration: theory and applications

, 2015
Concerns over the danger imposed on our environment from hazardous refrigerants released from the industry have prompted extensive and intensive research into alternatives coolants and technology, to replace or reduce our dependence on the current ...
Mohd. Ghazali, Normah
core  

Nusselt and Reynolds numbers correlation for oscillatory flow of thermoacoustics over heated tube banks

International Journal of Thermofluids
The back-and-forth motion characteristic of the oscillatory flow brings complexity in predicting the heat transfer nature for thermoacoustic wave conditions. Investigating this is crucial as the flow forms the backbone for the thermodynamic cycles of its
Aw Lin Chou, Fatimah Al Zahrah Mohd Saat, Fadhilah Shikh Anuar, Ahmed Hamood   +3 more
doaj   +1 more source

Operating characteristics of a standing-wave, liquid-piston thermoacoustic engine with phase-change

Results in Engineering
Low-grade heat from industrial waste streams, solar-thermal and geothermal, represents a significant energy source currently under-utilized. Phase-Change Thermoacoustic Engines, also known as Wet Thermoacoustic Engines (WTE) consist of a stack (porous ...
Ido Ben-Hertzel, Nathan Blanc, Avishai Meir, Guy Z. Ramon   +3 more
doaj   +1 more source

Inverse problems in thermoacoustics

Thermoacoustics is a branch of fluid mechanics, and is as such governed by the conservation laws of mass, momentum, energy and species. While computational fluid dynamics (CFD) has entered the design process of many applications in fluid mechanics, its ...
Yu, H, ,
core  

Fast Microscale Acoustic Streaming Driven by a Temperature-Gradient-Induced Nondissipative Acoustic Body Force. [PDF]

Phys Rev Lett, 2021
Qiu W, Joergensen JH, Corato E, Bruus H, Augustsson P.   +4 more
europepmc   +1 more source

Investigating the synergy of blockage ratio and external cold heat exchanger in standing-wave thermoacoustic engines: An experimental study

Results in Engineering
Thermoacoustic engines (TAE) offer a promising avenue for converting low-grade heat into useable energy. Despite its simplicity in fabrication, designing thermoacoustic engines face efficiency challenges hindering their widespread adoption.
M.M. Mahlalela, M.G.K. Machesa, L.K. Tartibu   +2 more
doaj   +1 more source

Development of a two-stage thermoacoustic refrigerator prototype

International Journal of Thermofluids
A traveling-wave thermoacoustic refrigerator is a potential cooling option for electronics enclosures. The main advantage of this type of refrigerator is the lack of moving parts, which makes it a maintenance-free application.
Samir Gh. Yahya, Ahmed Hamood, Artur J. Jaworski, Xiaoan Mao   +3 more
doaj   +1 more source