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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Seredyński, Mirosław
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2020On the anisotropy of thermal conductivity in ceramic brickscitations
- 2019The two-domain model of solute transport in binary alloy
- 2019Numerical study of crystal growth kinetics influence on prediction of different dendritic zones and macro-segregation in binary alloy solidificationcitations
- 2018The numerical investigation of the effective thermal conductivity of the carbon fiber reinforced epoxy composites manufactured by the vacuum bag method
- 2018Investigations on thermal anisotropy of ceramic bricks
- 2018Influence of crystal growth kinetics on prediction of macro segregation by micro-macroscopic simulation of binary alloy solidification
- 2015Front tracking method in modeling transport phenomena accompanying liquid–solid phase transition in binary alloys and semitransparent mediacitations
- 2015Tracking an envelope of columnar dendrites on an unstructured control volume grid
- 2015Micro-macro model for prediction of local temperature and concentration distribution in two-phase media
- 2014Micro-macro model for prediction of local temperature distribution in heterogeneous and two-phase media
- 2011Front Tracking Based Numerical Investigation of Relations Between Columnar Dendrites Permeability and Macrosegregation Evolution
- 2010Front Tracking Based Macroscopic Calculations of Columnar and Equiaxed Solidification of a Binary Alloycitations
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article
On the anisotropy of thermal conductivity in ceramic bricks
Abstract
This study presents results of investigation on anisotropy of thermal conductivity of masonry bricks. Few results of anisotropic thermal properties were presented in literature. Most of them were focused on the thermal conductivity measurement across the sample thickness only or additionally in one direction. In this work, thermal conductivities of three types of bricks were determined with an indirect method which involved measurements of thermal diffusivity, specific heat and density. The thermal diffusivity of ceramic bricks has been measured using the flash technique while differential scanning calorimetry was applied for the specific heat measurement. Apparent densities were determined geometrically. Measurements taken in three directions normal to the main planes of the brick revealed that thermal diffusivity of the bricks is anisotropic. Investigations were repeated on several bricks coming from different local manufacturers. Differences of the thermal conductivities determined for samples cut in various directions were up to 36%. The connection between principal directions of thermal diffusivity tensor and microstructure of the material was also investigated using the scanning electron microscopy and infrared thermography. It was found that silicate bricks were more isotropic than fired red bricks. The study confirmed earlier reports about the relation of microstructural alignment with thermal conductivity anisotropy. Interesting difference in the degree of anisotropy at two different depths was revealed. The precisely evaluated thermal conductivity tensor might be of relevance in the modeling of heat and moisture transport phenomena in building materials.