Results 21 to 30 of about 701,389 (226)

An experimental study on anisotropy of thermal conductivity in shale

open access: yesEnergy Geoscience, 2023
Thermal conductivity plays a crucial role in heat transfer and geothermal field distribution in the lithosphere. Understanding the anisotropy of thermal conductivity in shale and its influencing factors is significant for resource evaluation in shale oil
Fang Xie, Chuanqing Zhu, Boning Tang
doaj  

Thermal Conductivity of Defective Graphene Oxide: A Molecular Dynamic Study

open access: yesMolecules, 2019
In this paper, the thermal properties of graphene oxide (GO) with vacancy defects were studied using a non-equilibrium molecular dynamics method. The results showed that the thermal conductivity of GO increases with the model length.
Yi Yang   +7 more
doaj   +1 more source

Study on thermal conductivity of improved soil under different freezing temperatures.

open access: yesPLoS ONE, 2023
Based on the influence of moisture content, dry density and temperature (≦ 0°C) on the thermal conductivity of lime-modified red clay, the thermal conductivity was measured by transient hot wire method. A total of 125 data were obtained and the evolution
Hongqi Wang   +3 more
doaj   +1 more source

Preparation and heat insulating capacity of Sm2Zr2O7-SiC composites based on photon thermal transport

open access: yesJournal of Advanced Ceramics, 2020
A series of Sm2Zr2O7-SiC composites doped with different volume fraction and particle size of SiC were prepared by hot pressing at 1300 °C. The phase of the composites prepared is P-Sm2Zr2O7 and C-SiC, and no other diffraction peaks exist, which ...
Zhuang Ma, Qi Zhang, Ling Liu, Yanbo Liu
doaj   +1 more source

On the thermal conductivity of spark plasma sintered alumina hybrid nanocomposites: Estimation modeling and experimental validation [PDF]

open access: yesScience of Sintering, 2019
In the current work, an improved model to estimate the thermal conductivity of spark plasma sintered nanocomposites is presented. In the developed model, the thermal conductivity of the matrix was modeled as a function of the average matrix ...
Siddiqui M.U.   +3 more
doaj   +1 more source

Phonon engineering through crystal chemistry [PDF]

open access: yes, 2011
Mitigation of the global energy crisis requires tailoring the thermal conductivity of materials. Low thermal conductivity is critical in a broad range of energy conversion technologies, including thermoelectrics and thermal barrier coatings.
Snyder, G. Jeffrey   +2 more
core   +1 more source

Thermal Conductivity of Soil [PDF]

open access: yesNature, 1956
THE flow of heat away from buried electric cables, steam pipes, etc., is directly proportional to the conductivity of the surrounding soil. It follows that a knowledge of soil conductivities is necessary to the engineer. Unfortunately, there are almost as many values of soil conductivity as there have been experimenters in this field.
openaire   +2 more sources

Research on experimental tests and prediction models of thermal conductivity of freezing-thawing soil in the Kunlun Mountains

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In order to explore the basic laws of freezing and thawing soil in the Qinghai-Tibet Engineering Corridor in the Kunlun Mountains area, the coefficient of thermal conductivity of 349 groups of drilling frozen soil samples and 245 groups of thawing soil ...
Zhiyun LIU   +3 more
doaj   +1 more source

Extremely high thermal conductivity anisotropy of double-walled carbon nanotubes

open access: yesAIP Advances, 2017
Based on molecular dynamics simulations, we reveal that double-walled carbon nanotubes can possess an extremely high anisotropy ratio of radial to axial thermal conductivities. The mechanism is basically the same as that for the high thermal conductivity
Zhaoji Ma   +3 more
doaj   +1 more source

A comprehensive fractal approach in determination of the effective thermal conductivity of gas diffusion layers in polymer electrolyte membrane fuel cells [PDF]

open access: yes, 2017
The challenges in the fuel cell industry is to produce the efficient thermal and water management for accurate determination of the effectiveness thermal conductivity of gas diffusion layers (GDL) used in polymer electrolyte membrane fuel cells (PEMFC‟
Azizan, Mohd Fikri
core   +1 more source

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