Finite Element Analysis of the Material’s Area Affected during a Micro Thermal Analysis Applied to Homogeneous Materials

Joliff, Y.; Bélec, L.; Chailan, Jean‐François

doi:10.4236/jsemat.2011.11001

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…The complex geometry of the probe, especially the NThP, impedes the creation of proper analytical description. In this case, an interesting tool for the analysis of processes in the probe-sample system is numerical simulation based on the finite element method (FEM) [43][44][45][46][47]. So far, we have presented the probe-sample FEM model [39,48] which allowed accurate modeling of the basic physical processes occurring during the SThM measurement.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Thermal Microscopy Measurement with Thermal Probe Driven by dc+ac Current

et al. 2016

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Quantitative thermal measurements with spatial resolution allowing the examination of objects of submicron dimensions are still a challenging task. The quantity of methods providing spatial resolution better than 100 nm is very limited. One of them is scanning thermal microscopy (SThM). This method is a variant of atomic force microscopy which uses a probe equipped with a temperature sensor near the apex. Depending on the sensor current, either the temperature or the thermal conductivity distribution at the sample surface can be measured. However, like all microscopy methods, the SThM gives only qualitative information. Quantitative measuring methods using SThM equipment are still under development. In this paper, a method based on simultaneous registration of the static and the dynamic electrical resistances of the probe driven by the sum of dc and ac currents, and examples of its applications are described. Special attention is paid to the investigation of thin films deposited on thick substrates. The influence of substrate thermal properties on the measured signal and its dependence on thin film thermal conductivity and film thick-This article is part of the selected papers presented at the 18th International Conference on Photoacoustic and Photothermal Phenomena.

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Section: Introductionmentioning

confidence: 99%

Quantitative Thermal Microscopy Measurement with Thermal Probe Driven by dc+ac Current

et al. 2016

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“…From the study of several parameters and conditions, the thermal conductivity has been found to be the driving physical parameter in thermal exchanges. [31] So it is quite crucial to obtain a proper values for thermal conductivities of the equivalent wall. Figure 8 shows the schematic view of pipe, anchors, and refractory wall with their respective dimensions for pilot and industrial scale.…”

Section: Wall Designmentioning

confidence: 99%

Off-Gas System Scale-Up of HIsarna Iron-Making Process: A CFD-Based Approach

Hosseini

Hage

Duiker

et al. 2022

Metall Mater Trans B

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For all industrial applications, predicting system characteristics and behavior plays a vital role before constructing costly and complex multi-physic systems. Correct and reliable predictions become even more important once the aim is to go from small- to large-scale processes to establish an industrial demonstrations. In this study, a CFD-based scale-up of HIsarna off-gas system based on the Eulerian–Lagrangian approach is investigated and detailed step in scale-up procedure is discussed. A three-dimensional CFD model is developed and validated based on the available pilot scale data and used to design and scale up the post-combustion chamber (also known as reflux chamber). Detailed kinetics for volumetric and gas–solid reactions are incorporated in validated CFD model with a special attention to the wall boundary condition and modeling. The effect of reflux chamber geometry, oxygen injection ports, oxygen injection flowrate, isolation wall thickness, and inlet flue gas composition on different system characteristics such as heat loss through the wall, CO–H2–carbon mixture conversion, flue gas, and wall temperature are investigated. The aim of the scaled up geometry, like pilot scale, is to achieve full combustion of unwanted species inside the reflux chamber to assure zero emissions from the off-gas system. Compared to the pilot scale, the scaled up reflux chamber is capable of handling and removing higher amount of unwanted species coming from the main reactor and therefore lower CO–H2 and carbon particle emissions, mainly due to a larger size which provides larger volume and residence time for volumetric and gas–solid reaction to proceed.

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Characterization of Surface Contaminants and Features

2019

Developments in Surface Contamination and Cleaning, Volume 12

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Finite Element Analysis of the Material’s Area Affected during a Micro Thermal Analysis Applied to Homogeneous Materials

Abstract: Micro-thermal analysis (µ-TA

Cited by 6 publications

References 15 publications

Quantitative Thermal Microscopy Measurement with Thermal Probe Driven by dc+ac Current

Quantitative Thermal Microscopy Measurement with Thermal Probe Driven by dc+ac Current

Off-Gas System Scale-Up of HIsarna Iron-Making Process: A CFD-Based Approach

Characterization of Surface Contaminants and Features

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