Results 1 to 10 of about 397,150 (295)

Effective thermal conductivity of nanostructures: A review

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
We present a synthesis of recent results on thermal heat conductivity in nano-composites and nano-structures. The model is a mixt of the Effective Medium Approximation (EMA) and Extended Irreversible Thermodynamics (EXIT). The latter is particularly well
Georgy Lebon, Hatim Machrafi
doaj   +3 more sources

Effective Thermal Conductivity of Porous Solder Layers [PDF]

open access: yesIEEE Transactions on Components and Packaging Technologies, 2004
Microscopic voids in the die attachment solder layers of power semiconductor devices degrade their overall thermal transfer performance. This paper presents analytical results of the effect of spherical and spheroidal void geometries on the thermal conductivity of bulk media.
Pritchard LS, Acarnley PP, Johnson CM
openaire   +5 more sources

Achieving thermal magnification by using effective thermal conductivity

open access: yesTheoretical and Applied Mechanics Letters, 2018
: A thermal magnification device is proposed by using effective thermal conductivity. Different from transformation optics method, the magnification design is realized analytically by enforcing equality of effective thermal conductivity on the ...
Qingxiang Ji, Guodong Fang, Jun Liang
doaj   +2 more sources

Effective Thermal Conductivity of Composites: Numerical Study [PDF]

open access: yesComputational Engineering and Physical Modeling, 2023
The objective of this paper was to estimate the effective thermal conductivity (Keff) values of the composite based on fibers, and to validate the experimental values measured in previous work.
Nadia Benmansour
doaj   +1 more source

Lattice Boltzmann modeling of the effective thermal conductivity in plant fiber porous media generated by Quartet Structure Generation Set

open access: yesMaterials & Design, 2023
This study proposes a novel approach that combines a Quartet Structure Generation Set (QSGS) algorithm with the Lattice Boltzmann Method (LBM) to investigate effective thermal conductivity in plant fiber materials.
Rui Li   +6 more
doaj   +1 more source

Estimation of radiative thermal conductivity of glass wool using high precision GHP apparatus

open access: yesNihon Kikai Gakkai ronbunshu, 2022
In this study, the effective thermal conductivity of glass wool was measured under different temperature and packing ratio conditions using a high-precision guarded hot plate (GHP) apparatus, which adopted a Peltier module.
Fuhui GUO   +3 more
doaj   +1 more source

The effective thermal conductivity of virtual macroporous structures

open access: yesResults in Engineering, 2022
Recent developments in macroporous structures featuring metallic bodies are becoming a focus of research due to their improved load-bearing capacity and high specific surface area, making them potential candidates for thermofluidic applications.
A.J. Otaru   +5 more
doaj   +1 more source

Effect of packing structure on anisotropic effective thermal conductivity of thin ceramic pebble bed

open access: yesNuclear Engineering and Technology, 2021
Helium cooled solid breeder blanket as an important blanket candidate of the Tokamak fusion reactor uses ceramic pebble bed for tritium breeding. Considering the poor effective thermal conductivity of the ceramic breeder pebble bed, thin structure of ...
Shuang Wang   +5 more
doaj   +1 more source

Effective thermal conductivity of an intact heterogeneous limestone

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
The Cobourg limestone is a very low porosity rock consisting of lighter nodular regions that are predominantly calcite and darker regions consisting of calcite, quartz, dolomite, and an appreciable clay fraction.
A.P.S. Selvadurai, S.M. Rezaei Niya
doaj   +1 more source

Combined Prediction Method for Thermal Conductivity of Asphalt Concrete Based on Meso-Structure and Renormalization Technology

open access: yesApplied Sciences, 2022
Pavement temperature field affects pavement service life and the thermal environment the near road surface; thus, is important for sustainable pavement design.
Jiaqi Chen   +3 more
doaj   +1 more source

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