On the heat conduction in natural porous and anisotropic materials
[ 1 ] Katedra Podstaw Konstrukcji Maszyn, Wydział Maszyn Roboczych i Transportu, Politechnika Poznańska | [ 2 ] Instytut Matematyki, Wydział Elektryczny, Politechnika Poznańska | [ P ] employee
2011
paper
english
- anisotropy
- Fourier’s equation
- temperature
- conductivity
EN On the base of the data gathered in experiments made on the intentionally designed stand there is proposed the arctan-approximation to the dependence of the thermal conductivity in all anatomic directions of the wood, which are longitudinal, radial and tangential. We conclude that this approximation works very well in higher values of the temperature. This range, up to 200°C, has to be taken into account when there are undertaken the optimization problems in the thermal forming of superficial layers of materials which are porous and anisotropic (the wood and sawdust are good examples of such materials).
261 - 265
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