Experiments on Nonisothermal Moisture Movement in Wood
Keywords:Moisture movement, diffusion, activation energy
AbstractFour experiments were conducted to measure the flux of water vapor through white pine wood transverse to the grain with an applied thermal gradient of 7 C/cm. The results were compared with a theoretical equation based on activation theory, in which both moisture-content and thermal gradients are taken into account. A reasonable agreement was found between the experimental and theoretical fluxes. The results could not be explained either on the basis of a moisture-content or partial-pressure gradient taken separately.
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