Modeling the Process of Sawn Timber Drying
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2020, Vol 13, Issue 1
Abstract
The article considers the problem of sawn timber drying. The relevance of research is driven by the need to improve the automated process control system for drying sawn timber on the basis of modern information technologies, as well as to reduce the energy intensity of these technologies, which is enshrined in the program documents of forest industry development at the government level. The functional purpose of the automated control system is to provide a set level of the wood moisture content with the required quality of wood (zero ruptures). It is of immense complexity to obtain such functional dependency on the heating temperature in the chamber and the equilibrium air humidity by traditional statistical methods due to the uncertainty conditions of parameters, therefore, the apparatus of the fuzzy set theory should be used. Thus, the research purpose included generation of functional dependences of the sawn timber moisture content and drying time on the heating temperature and the equilibrium air humidity in the drying chamber based on fuzzy inference. The methodological basis of the theoretical studies was as follows: the theory of drying; the provisions of mathematical and fuzzy modeling; and, in terms of checking the adequacy of the proposed fuzzy model, the methods of mathematical statistics and experimental theory. The research results are the obtained dependences of the moisture content of sawn timber and drying time on the heating temperature and the equilibrium air humidity in the drying chamber, the synthesis of which is performed by means of Fuzzy Logic Toolbox of MATLAB application. The proposed functions of the moisture content and sawn timber drying time take into account the basic process configurations (the heating temperature and the equilibrium air humidity) and are experimentally verified for adequacy. The practical applicability of the results lies in the possibility of creating an intelligent system of automatic control of the sawn timber drying process.
Authors and Affiliations
A. G. Gorokhovsky, V. V. Pobedinsky, E. E. Shishkina, E. V. Pobedinskiy
Keywords
Related Articles
- EP ID EP683254
- DOI 10.37482/0536-1036-2020-1-154-166
- Views 527
- Downloads 0
Distribution of English Oak (Quercus robur L.) and Norway Maple (Acer platanoides L.) with Height in a Shelterbelt
The organizing framework of adaptive landscape agriculture is protective afforestation. The study of the shelterbelt state is necessary for detection of their protective height due to the dramatically changing climatic c...
Root System of Balsam Poplar (Populus balsamifera L.)
The research aims at studying the features of the balsam poplar root system in the conditions of Arkhangelsk. The relevance of the topic is determined by the poplar multifunctionality in urban conditions. The effectivene...
Lumber Convective Drying Based on Controlled Moisture Transfer
Wood drying (in particular lumber drying), which almost entirely determines the quality of the wooden products, is one of the most complicated and energy-consuming processes in wood processing. Convective drying of lumbe...
The Effectiveness of Low Frequency Electromagnetic Field and Hydrogel Influence on Survival Rate and Growth of Red Oak (Quercus rubra L.) Annual Seedlings
This work presents the results of a research that was conducted in the Donskoy Leskhoz nursery of the Forestry Department of the Lipetsk Region. The purpose of the research is to determine the effectiveness of the influe...
Physical and Mechanical Characteristics of a Pine Thermowood Composition during Barothermal Treatment
The studies are aimed at forming ideas on the structure and properties of composite materials obtained from pine wood and the processes occurring in the structure of wood tissue. The article presents the data on the infl...