Model study to compare drying rate through laser incisions in beech wood

Allbwn ymchwil: Cyfraniad at gynhadleddPapur

Laser incising presents several opportunities to the timber preservation and timber modification sectors. These include (1) increasing the permeability of species with moderate or poor permeability; (2) incising without introducing mechanical damage to adjacent tissue; and (3) greater control of the depth of the treated zone in envelope treatments. In addition, where drying is required prior to use, it is proposed that the incisions may speed up the rate of moisture movement from the core of the wood. This preliminary study assessed the drying rate of samples of beech timber which had been incised using a CO2 laser. Weight loss over time is related to the combined action of bulk flow, diffusion in the cell lumena, diffusion through the cell wall substance, and evaporation mechanisms at the timber surface. These are discussed in the light of classical drying theory for hardwoods, to examine suitability for the industrial context.
Iaith wreiddiolSaesneg
Tudalennau69-78
Nifer y tudalennau10
StatwsCyhoeddwyd - 3 Gorff 2019
DigwyddiadTimber 2019 - IOM3, London, Y Deyrnas Unedig
Hyd: 3 Gorff 20194 Gorff 2019

Cynhadledd

CynhadleddTimber 2019
Gwlad/TiriogaethY Deyrnas Unedig
DinasLondon
Cyfnod3/07/194/07/19
Gweld graff cysylltiadau