The Study of Cellular Automata Method When Used in the Problem of Capillary-Porous Material Thermal Conductivity

Sokolovskyy, Yaroslav; Sinkevych, Oleksiy; Voliansky, Roman; Kryshtapovych, Volodymyr

doi:10.1007/978-3-030-63270-0_49

Cited by 2 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, during the drying of wood, according to the law of conservation of energy, the amount of heat that enters it is equal to the amount spent on heating it and evaporating moisture from it [14]. Therefore, the internal process of heat transfer takes into account the heat balance equation for the capacity of wood, which has the following form:…”

Section: The Results Of the Study And Their Discussionmentioning

confidence: 99%

The use of cellular automata in the simulation of wood drying processes in a wood drying chamber of periodic action

Sokolovskyy¹,

Sinkevych²

2022

CDS

Self Cite

View full text Add to dashboard Cite

In this work, research the essence of the wood drying process in a periodic wood drying chamber. This paper provides a mathematical model of a wood drying chamber, which describes the general essence of physical drying processes using the equipment available in the wood drying chamber. This approach allows to take into account the physical parameters of the necessary equipment, such as heaters, fans, humidifying nozzles or other. This approach also allows to ignore some design characteristics that may differ depending on the type of wood drying chamber. Considering this, the main task in this work is to determine the temperature and humidity of the drying agent and lumber in the stack, as well as the temperature of the main components of the wood drying chamber. Taking into account such a large number of input parameters and describing a complex non-stationary process of heat transfer, there is a need to create complicated mathematical models. The presence of such mathematical models greatly complicates their application and requires significant computer resources for their calculation. In this way, the mathematical description is reduced to the description of non-linear partial differential equations. To simplify and speed up the calculations of this mathematical model, the use of cellular automata is suggested. To do this, the 3D model of the wood drying chamber is represented as a cell-automatic field, which consists of cells of the same size but different types. As a result, neighboring cells contain local relationships that describe their general behavior. This behavior depends on the type of tangent cells and is described by transition rules based on a mathematical model. Through the use of the developed cell-automatic model and transition rules, it is possible to obtain the values of the temperature and moisture content of the wood in the stack, the drying agent in the chamber, as well as the temperature of the main components of the chamber. The work also shows the corresponding graphs of changes in temperature and moisture content. To check the adequacy and reliability, the obtained results were compared with the results of other authors' experiments. As a result of the verification, the values of the average absolute error aren't high, which confirms the adequacy of the mathematical model and the prospects of using the developed cell-automatic model.

show abstract

Section: The Results Of the Study And Their Discussionmentioning

confidence: 99%

The use of cellular automata in the simulation of wood drying processes in a wood drying chamber of periodic action

Sokolovskyy¹,

Sinkevych²

2022

CDS

Self Cite

View full text Add to dashboard Cite

show abstract

The use of cellular automata in modeling the processes of wood drying in a stack

Sokolovskyy¹,

Sinkevych²

2021

UJIT

View full text Add to dashboard Cite

In this work, we investigated the possibilities of using a model of cellular automata in solving the problem of heat and moisture transfer in a periodic wood drying chamber. Thus, in this work are investigating the processes of heat and moisture transfer between the wood and its drying agent. Studies are carried out by using CAD model of stack of dried wood. To use cellular automata, it is proposed to present the CAD model as an array of cubes, each of which has six faces (cells). In this work also proposes to use the different research zones, each of which allows us to calculate the values of temperature and moisture content in different places of the CAD model. In particular, these zones can be placed inside the wood, on its boundary or in the agent of its drying. The proposed cell-automata model contains local relationships between cells that describe their general behavior. In addition to describing the general behavior of cells, the model provides the possibility of setting the physical characteristics of the material. This allows us to approximate processes and determine new values of the physical characteristics of the material, including temperature and moisture content. The proposed algorithm for the use of cellular automata makes it possible to obtain a reliable result unnecessarily to conduct complex and expensive practical experiments. To speed up the calculation process, propose to use multilayered, which consists in obtaining numerical values of the physical characteristics of the material from several adjacent cells, which are located in the same direction of interaction. The work also provides graphs of changes in temperature and relative humidity of the wood drying agent. In this work is also given graphs of changes in temperature and moisture content of wood inside and on its boundary. To check the adequacy and reliability, all results are compared with the results of another experiment. To check the adequacy and reliability, we compared the obtained results with the results of another experiment. For this comparison in work it is calculated the relative error between the temperature and moisture content values of both experiments. The value of this relative error makes it possible to determine the prospects for the use of cellular automata in the simulation of heat and moisture transfer processes in wood drying chambers. Keywords: сellular automata; CAD model; algorithm of work; transition rules; wood drying chamber.

show abstract

The Study of Cellular Automata Method When Used in the Problem of Capillary-Porous Material Thermal Conductivity

Cited by 2 publications

References 5 publications

The use of cellular automata in the simulation of wood drying processes in a wood drying chamber of periodic action

The use of cellular automata in the simulation of wood drying processes in a wood drying chamber of periodic action

The use of cellular automata in modeling the processes of wood drying in a stack

Contact Info

Product

Resources

About