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Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X

Resumen

VIDAL BASTIAS, Marcia  y  CLOUTIER, Alain. EVALUATION OF WOOD SORPTION MODELS FOR HIGH TEMPERATURES. Maderas, Cienc. tecnol. [online]. 2005, vol.7, n.3, pp.145-158. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2005000300001.

Seven wood sorption models available in the literature were parameterized for prediction of equilibrium moisture content for temperatures up to 220°C. The criterion used to evaluate the models is the uncorrected sum of squares of differences between the predicted equilibrium moisture content and experimental values published in literature for temperatures between 0°C and 160°C. The results show that the Malmquist model gave the best overall fit to experimental data for the relative humidities considered (40%, 52%, 65%, 75% and 85%). However, the García model performs better for temperatures between 110°C and 155°C at a relative humidity of 85%. Therefore, the choice of the sorption model depends on the specific hygrothermal conditions required by the user.

Palabras clave : sorption isotherm; relative vapor pressure; equilibrium moisture content; mathematical modeling.

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