Results 21 to 30 of about 2,008,385 (296)

Investigating thermal properties of gas-filled planetary regoliths using a thermal probe [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2012
We introduce a general purpose penetrator, fitted with a heater, for measuring temperature and thermal diffusivity. Due to its simplicity of deployment and operation the penetrator is well suited for remote deployment by spacecraft into a planetary ...
M. D. Paton   +3 more
doaj   +1 more source

Thermal quadrupole method with internal heat sources [PDF]

open access: yes, 2012
A new method based on the thermal quadrupoles technique for heat transfer modelling in multilayered slabs with heat sources is proposed. Classical thermal quadrupoles use hyperbolic functions and numerical problems occur according to the argument value ...
A. Kusiak   +16 more
core   +1 more source

Influence of measurement parameters of laser flash analysis on the observed thermal diffusivity and the choice of parameters to get repeatable measurements

open access: yes, 2022
S.1183-1203Sugar alcohols are food grade, low cost and have very high latent heat capacities. They are therefore an attractive candidate for energy storage applications. However, to be able to utilize their potential, thermal conductivity is an important
Agarwal, T.
core   +1 more source

Thermal Wavelength Measurement of Nanofluid in an Optical-Fiber Thermal Wave Cavity Technique to Determine the Thermal Diffusivity

open access: yesThe Scientific World Journal, 2018
The application of optical-fiber thermal wave cavity (OF-TWC) technique was investigated to measure the thermal diffusivity of Ag nanofluids. The thermal diffusivity was obtained by measuring the thermal wavelength of sample in a cavity scan mode.
Monir Noroozi   +3 more
doaj   +1 more source

Thermal conductivity measurement of liquids in a microfluidic device [PDF]

open access: yes, 2010
A new microfluidic-based approach to measuring liquid thermal conductivity is developed to address the requirement in many practical applications for measurements using small (microlitre) sample size and integration into a compact device.
M. R. Bown   +46 more
core   +1 more source

Dependence of thermal diffusivity on particle size in Au nano-fluid [PDF]

open access: yes, 2010
In this paper we report the measurement of thermal diffusivity of gold nanofluid prepared by γ-radiation with various particle sizes ranging from 7.0 nm to 18.7 nm. The thermal lens technique is used to measure thermal diffusivity of gold nano-fluid.
Mahdi, Mohd Adzir   +7 more
core   +1 more source

Influence of the Precipitation of Secondary Phase on the Thermal Diffusivity Change of Al-Mg2Si Alloys

open access: yesApplied Sciences, 2018
Al-Si-Mg alloys are investigated to determine the relationship between changes in the thermal diffusivity and precipitation behavior of the Mg2Si phase with various contents of Mg2Si and aging treatment conditions. The samples were solid solution-treated
Yu-Mi Kim   +4 more
doaj   +1 more source

An Application of the Finite Element Method for Heat and Mass Transfer of Boundary Layer Flow Using Variable Thermal Conductivity and Mass Diffusivity

open access: yesJournal of Mathematics, 2022
Since mass diffusivity and thermal conductivity cannot be considered constants in practical analysis, an existing heat and mass transfer model of unsteady mixed convection flow over a stretching sheet is modified by incorporating the effects of nonlinear
Muhammad Shoaib Arif   +2 more
doaj   +1 more source

Thermal properties of fluoride mixtures near the melting point

open access: yesChimica Techno Acta
The thermal diffusivity of LiF-NaF-KF (FLiNaK), NaF-KF and FliNaK-NdF3 mixtures was studied by laser flash method near the melting point. The obtained results demonstrate that the thermal diffusivity of the melts slowly decreases within a certain ...
Aleksey Rudenko   +3 more
doaj   +1 more source

Moisture dependent thermal properties of selected vegetables in Akwa Ibom State, Nigeria

open access: yesResearch in Agricultural Engineering, 2019
The thermal properties of some selected vegetables in Akwa Ibom State, Nigeria were investigated. The specific heat, thermal conductivity and thermal diffusivity for the five selected vegetables (Afang, Nkong, Atama, Editan and Nton) were determined and ...
Olugbenga Abiola Fakayode   +1 more
doaj   +1 more source

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