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vol.5 issue2ESTUDIO DEL ANGULO FIBRILAR Y SU RELACION CON LA EDAD CAMBIAL EN Pinus radiata D.DON, PROVENIENTE DE LA SEPTIMA REGION, CHILEEVALUATION OF A KILN INCORPORATING AN OSCILLATING PLATE AIRFLOW SYSTEM author indexsubject indexarticles search
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Maderas. Ciencia y tecnología

On-line version ISSN 0718-221X

Abstract

SANCHEZ ARRIAGADA, Reinaldo. DEVELOPMENT OF A GAS DRYER FOR LOW PERMEABILITY AND LOW MONTHLY YIELD WOOD. Maderas, Cienc. tecnol. [online]. 2003, vol.5, n.2, pp.125-136. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2003000200004.

A timber dryer using liquefied gas as thermal power source has been developed. This piece of equipment was thought to include the use of a specific drying cycle from gas direct burning and its further dilution with air, prior to being injected to the drying process inside the kiln. This technology is a real option for the furniture parts and pieces industry requiring wood monthly consumption lower than 50m3, and in turn, it uses high commercial value species, featuring slow drying and cycles that get close to 30 days. Liquefied gas makes up a real alternative in those cases where operation greater cost regarding fuel compensates fixed costs that derive from having qualified operators for the boiler operation. This research study has been developed by doing a comparative evaluation of fuel costs and total costs in the case of both the suggested drying process and the conventional dryer, with respect to drying schedule that have been applied to high and low permeability woods, for same monthly wood yield. It has been possible to manufacture a 12 m3 capacity dryer through private funds financing and governmental subsidy. Preliminary outcomes state that for monthly drying yields lower than 120m3 the gas-based dryer turns out to be more profitable and has become a real option for such purposes

Keywords : drying; technology; cost; process; evaluation.

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