Publicou 4 edições por ano
ISSN Imprimir: 2151-4798
ISSN On-line: 2151-562X
Indexed in
MEASUREMENT OF RADIAL AND AXIAL THERMAL DIFFUSIVITIES OF BEECH FOR DIFFERENT MOISTURE CONTENTS USING A PHOTOTHERMAL METHOD
RESUMO
This article deals with the measurement of axial and radial thermal diffusivities of a beech sample for different moisture contents. The front face of the sample is heated in an inhomogeneous way. The temperature rise was measured at two optimal positions on the back face of the specimen. An optimal experimental design was first performed to choose the optimal sensor positions. Thermophysical properties were then determined using an inverse technique based on the Levenberg-Marquardt algorithm. It will be shown that the thermal diffusivity in the axial direction increases by increasing the moisture content above the fiber saturation point. However, the radial thermal diffusivity does not show significant variation.
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Lagüela S., Bison P., Peron F., Romagnoni P., Thermal conductivity measurements on wood materials with transient plane source technique, Thermochimica Acta, 600, 2015. Crossref
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Peron F., Bison P., De Bei M., Romagnoni P., Thermal properties of wood: measurements by transient plane source method in dry and wet conditions, Journal of Physics: Conference Series, 1599, 1, 2020. Crossref