SciELO - Scientific Electronic Library Online

vol.13 issue3Comparison of phenolic extracts obtained of Pinus radiata bark from pulp and paper industry and sawmill industryRunoff characteristics in forest plots before and after wood ash fertilization author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Maderas. Ciencia y tecnología

On-line version ISSN 0718-221X


PEREZ-PENA, Natalia; VALENZUEL, Luis; DIAZ-VAZ, Juan Eduardo  and  ANANIAS, Rubén A. Prediction of equilibrium moisture content in wood in relation to the specific gravity of the cell wall and environmental variables. Maderas, Cienc. tecnol. [online]. 2011, vol.13, n.3, pp.253-266. ISSN 0718-221X.

The equilibrium moisture content (EMC) variation owing to the time in species with different basic density (BD) was determined. Further, of generating a model for the prediction of EMC as a function of environmental factors and some physical properties of wood Small samples of 2.5 x 7.5 x 20 cm in depth, width and length, respectively, from 3 conifers and 6 hardwoods were located in a shed at the exterior. And the weight of small samples (WSS), as well as, the temperature (T) and relative humidity (RH) of air were controlled, once a week and for 2 years. After finishing the trial the basic density (BD), oven dry density (ODD), specific gravity of the cell wall (SGCW) and porosity (P) of the small samples were determined EMC variation of wood in relation to the time was higher, in species with lower BD and higher V. The predicting model that considered the T, RH, SGCW and WSS as independent variables explained in a 98.5 % the variation of EMC. The correlation coefficient (R) between measured EMC and estimated EMC by the predicting model was 0.979.

Keywords : Equilibrium moisture content; wood density; porosity; specific gravity of the cell wall; multiple regressions.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License