Results 91 to 100 of about 2,856 (222)

Perspectives and Energy Applications of Magnetocaloric, Pyromagnetic, Electrocaloric, and Pyroelectric Materials

Advanced Energy Materials, Volume 14, Issue 39, October 18, 2024.
This perspective paper outlines a strategic roadmap for potential breakthroughs in solid‐state heating, cooling, and energy harvesting technologies by 2040, focusing on electrocaloric, pyroelectric, magnetocaloric, pyromagnetic, multicaloric, and multipyroic materials and their applications.
Katja Klinar, Jia Yan Law, Victorino Franco, Xavier Moya, Andrej Kitanovski   +4 more
wiley   +1 more source

Development of a novel thermoacoustic flue-gas analyzer

AIP Advances, 2020
Flue gas analyzers, such as those based on electrochemical cells and infrared sensors, are commonly used to determine the molar concentrations of the different species of flue-gas mixtures and provide information about the associated air-fuel ratio and ...
M. Aziz, H. Saleh, A. Abd El-Rahman
doaj   +1 more source

Potential of Organic Rankine Cycles (ORC) for waste heat recovery on an Electric Arc Furnace (EAF) [PDF]

, 2017
The organic Rankine cycle (ORC) is a mature technology to convert low temperature waste heat to electricity. While several energy intensive industries could benefit from the integration of an ORC, their adoption rate is rather low.
A Oyewunmi, Oyeniyi, Ameel, Bernd, De Paepe, Michel, Kaya, Alihan, Lazova, Marija, Lecompte, Steven, N Markides, Christos, van den Broek, Martijn   +7 more
core  

Mixed acoustic–entropy combustion instabilities in gas turbines [PDF]

, 2014
A combustion instability in a combustor terminated by a nozzle is analysed and modelled based on a low-order Helmholtz solver. A large eddy simulation (LES) of the corresponding turbulent, compressible and reacting flow is first performed and analysed ...
Motheau, Emmanuel, Nicoud, Franck, Poinsot, Thierry   +2 more
core   +3 more sources

Heuristics applying stochastic information as tools for thermoacoustic standing-wave engine optimization

Computer Assisted Methods in Engineering and Science, 2018
In this article, two numerical methods for solving engineering problems defined as multicriteria optimization and inverse problem are presented. In particular, this study deals with the optimization of the design of thermoacoustic engine in the frame in
Iwona Nowak
doaj   +1 more source

Determination of the stability limit of a thermoacoustic engine by means of finite elements [PDF]

, 2013
A finite element model is presented to obtain the stability limit of, as an example, 2D standing wave thermoacoustic engine. The stability limit is the required heating to obtain self-sustained (thermo)acoustic oscillations. The method used to obtain the
Boer, André de, Jong, Jan A. de, Wijnant, Ysbrand H.   +2 more
core   +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

Progress Towards the Development of a Long-Lived Venus Lander Duplex System [PDF]

, 2010
NASA has begun the development of a combined Stirling cycle power and cooling system (duplex) to enable the long-lived surface exploration of Venus and other harsh environments in the solar system. The duplex system will operate from the heat provided by
Bruder, Geoffrey A., Dyson, Roger W.
core   +1 more source

Numerical calculation of a heat-driven thermoacoustic cooler with multiple pair of the cooler and engine cores (Study on cores where the cold side of the cooler and the ambient side of the engine are adjacent)

Journal of Fluid Science and Technology
Heat-driven thermoacoustic coolers (HDTACs) are promising technologies for reusing waste heat. Although numerous studies have been conducted on HDTACs, they have predominantly focused on small units at the laboratory scale, with limited work on larger ...
Mariko SENGA, Shinya HASEGAWA
doaj   +1 more source

Frozen sound: An ultra-low frequency and ultra-broadband non-reciprocal acoustic absorber. [PDF]

Nat Commun, 2023
Maddi A, Olivier C, Poignand G, Penelet G, Pagneux V, Aurégan Y.   +5 more
europepmc   +1 more source