Results 71 to 80 of about 2,216 (204)

Influence of Chemical Treatment on the Performance of Natural Fiber–Based Termite Mound Soil Composite Bricks for Masonry Applications

Journal of Engineering, Volume 2025, Issue 1, 2025.
This study investigates the mechanical, physical, and thermal properties of termite mound soil (TMS) composites reinforced with coconut fibers (CFs) and empty fruit bunch spikelet fibers (EFBSF), addressing Cameroon’s housing crisis with sustainable building materials.
Wannyuy Kingsly Mofor, Yakum Reneta Nafu, Tchemou Gilbert, Foba Josepha Tendo, Yuyoh Gemlak Paul, Kuhlon Divine Dinven, Akongoh Reuben Magbeshi, Arpan Hazra   +7 more
wiley   +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

Stack Parameters Effect on the Performance of Anharmonic Resonator Thermoacoustic Heat Engine

Archive of Mechanical Engineering, 2014
Termoakustyczna maszyna cieplna (TAHE) przekształca ciepło w energie akustyczna bez uzycia czesci ruchomych. W porównaniu z maszynami tradycyjnymi ma ona szereg zalet, takich jak prosta konstrukcja, stabilnosc działania oraz wykorzystanie gazów ...
Nouh Mostafa A., Arafa Nadim M., Abdel-Rahman Ehab   +2 more
doaj   +1 more source

A dynamic model for the optimization of oscillatory low grade heat engines [PDF]

, 2011
The efficiency of a thermodynamic system is a key quantity on which its usefulness and wider application relies. This is especially true for a device that operates with marginal energy sources and close to ambient temperatures.
Markides, CN, Smith, TCB
core   +2 more sources

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

Weakly nonlinear thermoacoustics for stacks with slowly varying pore cross-sections [PDF]

A general theory of thermoacoustics is derived for arbitrary stack pores. Previous theoretical treatments of porous media are extended by considering arbitrarily shaped pores with the only restriction that the pore cross-sections vary slowly in the ...
Molenaar, J., Panhuis, P.H.M.W., in 't, Rienstra, S.W., Slot, J.J.M.   +3 more
core   +2 more sources

Surface Acoustic Microwave Photonic Filters on Etchless Lithium Niobate Integrated Platform

Laser &Photonics Reviews, Volume 18, Issue 8, August 2024.
Surface acoustic microwave photonic filters are demonstrated on an etchless lithium niobate integrated platform. Microwave filtering is realized by piezoelectric excitation of gigahertz‐frequency surface acoustic waves which, by acousto‐optically modulating a high‐quality photonic microcavity, produce sharp peaks in the microwave spectrum of the output
Yue Yu, Xiankai Sun
wiley   +1 more source

Numerical Study on Thermodynamic Performance of a Novel Thermoacoustically Driven Refrigerator---Double-acting Traveling-wave Thermoacoustic Refrigerator

Zhileng xuebao, 2012
A new thermoacoustic refrigerator which is driven by a double-acting traveling-wave thermoacoustic engine have been researched and designed. Through numerical simulation, we optimize the structure parameters of the refrigerator.
Yang Zhuo, Luo Ercang, Chen Yanyan
doaj  

Investigation of a traveling wave thermoacoustic engine in a looped-tube

EPJ Web of Conferences, 2014
In the present paper, four configurations of a traveling wave thermoacoustic engine in a looped tube were investigated by means of theoretical calculations and experiments.
Novotný Petr, Hsu Shu-Shen, Wang An-Bang, Vít Tomáš   +3 more
doaj   +1 more source

Boosting flexible electronics with integration of two‐dimensional materials

InfoMat, Volume 6, Issue 7, July 2024.
The progress was summarized in the flexible electronics empowered by the two‐dimensional materials, including electronic skins (for sweat and temperature sensors), gas sensors, touch pads, nanogenerators for mechanical energy collection, flexible supercapacitors and batteries, transistors and logic circuits, as well as memristors for neuromorphic ...
Chongyang Hou, Shuye Zhang, Rui Liu, Thomas Gemming, Alicja Bachmatiuk, Hongbin Zhao, Hao Jia, Shirong Huang, Weijia Zhou, Jian‐Bin Xu, Jinbo Pang, Mark H. Rümmeli, Jinshun Bi, Hong Liu, Gianaurelio Cuniberti   +14 more
wiley   +1 more source