Results 21 to 30 of about 32,008 (307)

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

Geoscientific 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, A.-M. Harri, T. Mäkinen, S. F. Green   +3 more
doaj   +1 more source

Influence of the window thermal diffusivity on the silicon wafer temperature in a rapid thermal system [PDF]

, 2015
The heating of a silicon wafer in a rapid thermal process is studied by numerical simulation. In the model, the equations of conservation of mass and energy are solved with the finite volume method and the determination of the solutions of the radiative ...
LOGERAIS, Pierre-Olivier, KHELALFA, Raouf, BOUTEVILLE, Anne, DURASTANTI, Jean-Félix, RIOU, Olivier   +4 more
core   +1 more source

Measurements of ionic liquids thermal conductivity and thermal diffusivity [PDF]

, 2016
Thermal conductivity and thermal diffusivity of ionic liquids (ILs) are investigated in this work. A hot disk method for ILs thermal conductivity and thermal diffusivity measurement is utilized.
Yansong Zhao, Yingpeng Zhen, Zhao, Yansong, Boström, Tobias, Tobias Boström, Zhen, Yingpeng, Jelle, Bjørn Petter, Bjørn Petter Jelle   +7 more
core   +1 more source

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

Applied 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, Se-Weon Choi, Young-Chan Kim, Chang-Seok Kang, Sung-Kil Hong   +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

Journal 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, Kamaleldin Abodayeh, Yasir Nawaz   +2 more
doaj   +1 more source

Thermal properties of fluoride mixtures near the melting point

Chimica 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, Alexander Redkin, Evgeniya Il’ina, Svetlana Pershina   +3 more
doaj   +1 more source

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

Research 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, Olayemi Olubunmi Ojoawo   +1 more
doaj   +1 more source

Application of the Thermal Diffusivity Standard for the Heat Transfer Parameter Control in Absorbing Materials

Приборы и методы измерений, 2023
Metrological support creation and use of heat transfer etalons are important stages in the development of modern materials science. This is especially concerned to the emergence of new materials in the world with previously unattainable thermophysical ...
E. V. Ivakin
doaj   +1 more source

Soil thermal diffusivity estimated from data of soil temperature and single soil component properties

Revista Brasileira de Ciência do Solo, 2013
Under field conditions, thermal diffusivity can be estimated from soil temperature data but also from the properties of soil components together with their spatial organization.
Quirijn de Jong van Lier, Angelica Durigon   +1 more
doaj   +1 more source

Sustainable earth walls to meet the building regulations [PDF]

, 2005
The thermal conductivity and diffusivity of un-fired clay bricks, a straw clay mixture and straw bales have been measured using a thermal probe technique, with an iterative method for data analysis. The steady-state air-to-air thermal transmittance, or U-
Goodhew, S, Griffiths, R
core   +1 more source