CONTACT DRYIXG OF WOOD VENEER |
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Authors: | O. A. Plmb Lyle M. Couey Dvavne Shearer |
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Affiliation: | a Associate Dean, Pullman, WAb The Baeing Company Washington State University, Seattle, WAc WTC.IE5 Weyerhaueser Company, Tacoma, WA |
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Abstract: | A model for contact drying of wood veneer is presented and compared with experimental results. The model is and-dimensional and assumes that convective transport of liquid and vapor is dominant for the drying conditions examined. Model results are in good agreement with the experimental data.
A parameter study indicates that total drying time is a strong function of platen temperature and veneer thickness. The model indicates that the spacing of ventilation grooves does not affect drying rate significantly, but has a large effect on pressure buildup in the veneer. Veneer permeability shoved a similar effect--with lover permeabilities resulting in slightly slower drying, but significantly higher internal pressure. |
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