Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
APPLICATION OF DIFFUSIVE PARAMETER IDENTIFICATION TECHNIQUES FOR WOOD DRYING USING OPTIMIZATION METHODS
Submission Author:
Kerolyn Luana Holek , SC
Co-Authors:
Kerolyn Luana Holek, Miguel Vaz Jr., Paulo Zdanski
Presenter: Kerolyn Luana Holek
doi://10.26678/ABCM.ENCIT2020.CIT20-0593
Abstract
Drying is an essential process before the manufacture of any wood component, part or product. The prevention of defects in drying operations is of fundamental importance due to the potential reduction of the product value caused by the quality reduction of the material. Most of these defects are caused by large tension/deformation gradients which occur by the moisture difference between the surface and the center of the wood. Therefore, careful process control and knowledge of the wood properties are essential for a successful drying operation. In the context of operations using greenhouses, the drying process involves a problem totally coupled with the phenomena of heat and mass transfer (moisture), which demand the knowledge of heat and moisture diffusivity parameters. This paper presents a discussion on the application of population-based methods in the determination of moisture diffusivity parameters. The direct problem, fully coupled, simultaneously solves the energy and mass conservation equations based on the finite volume method. On the other hand, the inverse problem is solved in the time domain using the methods of particle swarm optimization, genetic algorithm, Nelder-Mead method
Keywords
drying, Finite volume method, Particle Swarm Optimization, genetic algorithm, Nelder-Mead;
