Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL MODELING OF HEAT AND MASS TRANSFER DURING THE WOOD DRYING PROCESS
Submission Author:
Paola Buchholtz Carvalho , PR
Co-Authors:
Paola Buchholtz Carvalho, Viviana Mariani
Presenter: Paola Buchholtz Carvalho
doi://10.26678/ABCM.ENCIT2020.CIT20-0387
Abstract
Wood is widely used, due to its diversity of species and physical-chemical characteristics, for furniture manufacturing, packaging, and many other products. However, to improve the final quality of the product and to minimize the probability of the occurrence of fungi and bacteria, or defects in its structure in the final product, there is a need to carry out the wood drying process. This process occurs through the transfer of heat and mass between air and wood. Therefore, mathematical models assist in the control and analysis of this process parameters, enabling an assertive analysis about the quality of the wood product regarding its drying rate. For this reason, the present paper aims to study the behaviour of pine wood in its drying process through the development of computational code, using the TDMA solver, with time-stepping time scanning, and the Matlab software, solving the equations decoupled and applying the finite difference method. This study includes a literature review, code development, validation and refining of the proposed model, analysis of the pinewood drying process and verification of the results. This model was compared with the code proposed by Simo-Tagne et al. (2016), which evaluated Frake wood. With that, the results of the two species were compared. Furthermore, drying was studied considering the condition of Dirichlet and Neumann. The result obtained was a code capable of evaluating the drying process with satisfaction, a product with moisture content lower than 25%, with wood type Frake and Pine having similar behaviour.
Keywords
Numerical Methods, Wood, mass transference, Heat transfer, Finite Differences, Computational modeling
DOWNLOAD PDF VIEW PRESENTATION
