Results 31 to 40 of about 41,996 (315)

Versatile Selective Soldering via Molten Metal Printing for Heat‐Sensitive 3D Electronics and Smart Wearables

open access: yesAdvanced Functional Materials, EarlyView.
Selective soldering via molten metal printing enables component integration, even in heat‐sensitive applications across fields like additive manufacturing, sustainable electronics, and smart textiles. This method overcomes the temperature limitations of existing technologies.
Dániel Straubinger   +4 more
wiley   +1 more source

Charging of an Air–Rock Bed Thermal Energy Storage under Natural and Forced Convection

open access: yesEnergies
An air-rock bed thermal storage system was designed for small-scale powered generation and analyzed with computational fluid dynamics (CFD) using ANSYS-Fluent simulation. An experimental system was constructed to compare and validate the simulation model
Ashenafi Kebedom Abrha   +3 more
doaj   +1 more source

Natural convection of large Prandtl number fluids: A controversy answered by a new thermal lattice Boltzmann model

open access: yesCase Studies in Thermal Engineering, 2023
The purpose of this work is to deepen our understanding of natural convection with large Prandtl number fluids and to resolve some controversies in the previous publications.
Sheng Chen   +4 more
doaj  

Thermal Performance of Convective-Radiative Heat Transfer in Porous Fins

open access: yesWalailak Journal of Science and Technology, 2014
Forced and natural convection in porous fins with convective coefficient at the tips under radiation and convection effects are investigated in this paper. Aluminum and copper as fin materials are investigated.
Majid SHAHBABAEI, Seyfolah SAEDODIN
doaj   +1 more source

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu   +13 more
wiley   +1 more source

Natural convection in liquids [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1939
Lorenz (1881) gave a solution to the problem of natural convection set up near a heated vertical plate, in which he assumed that the surfaces of equal fluid velocity and equal fluid temperature are parallel to the plate. Experiments show, however, that this is not the case.
openaire   +2 more sources

Harnessing Outer Space for Improved Electrocaloric Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo   +8 more
wiley   +1 more source

Mixed convection of ferrohydrodynamics magnetized hybrid ferrofluid on a slip-permeable stretching sheet

open access: yesJournal of Taibah University for Science
Mixed convection significantly affects fluid flow and heat transfer in manufacturing and engineering. This study investigates it in a ferrohydrodynamics magnetized hybrid ferrofluid on a slip stretching sheet affected by suction and injection.
Nur Ilyana Kamis   +3 more
doaj   +1 more source

Self‐Powered Real‐Time Temperature Sensing Based on Flexible Ionic Elastomer on Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a self‐powered real‐time ionic TENG temperature sensing system for flexible thermal management with high and real‐time temperature monitoring. Ionic liquids and elastomer chains are investigated under temperature via electrochemical and physical analysis, resulting in enhancing thermal sensitivity and output performance on TENG ...
Hee Jae Hwang   +9 more
wiley   +1 more source

Simulation of Thermomagnetic Convection in a Cavity Using the Lattice Boltzmann Model

open access: yesJournal of Applied Mathematics, 2011
Thermomagnetic convection in a differentially heated square cavity with an infinitely long third dimension is numerically simulated using the single relaxation time lattice Boltzmann method (LBM).
Mahshid Hadavand, Antonio C. M. Sousa
doaj   +1 more source

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