Thermal characterization of pine wood by photoacoustic and photothermal techniques
Thermal characterization of pine wood by photoacoustic and photothermal techniques
复制标题
通过光声和光热技术对松木进行热表征
DOI:
10.1007/s001070050418
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
L. Villaseñor
中科院分区:
文献类型:
--
作者:
G. León;J. Cruz;L. Villaseñor
Abstract Photoacoustic and photothermal techniques are used to investigate the thermophysical properties at room temperature for each of the three main planes of nine species of pine wood. The open-photoacoustic-cell approach is used to measure thermal diffusivity, α, and the photothermal technique of continuous illumination of the sample in vacuum is used to measure the product of density and specific heat capacity, ρc. Thermal conductivity and effusivity are derived from the measurements for α and ρc. We conclude that these techniques are well suited to study thermal properties of wood.c, zu ermitteln. Aus den beiden Meßgrößen wird die thermische Leitfähigkeit und Effusivität abgeleitet. Es zeigte sich, daß diese Methoden gut geeignet sind, die thermischen Eigenschaften von Holz zu bestimmen.