Abstract
In this work, the main emphasis is placed on the creation of a cellular automaton
model for simulating the drying process of capillary-porous materials. The possibility
of creating a cell-automatic field for the studied 3D model of a periodic drying chamber
is considered. Appropriate algorithms are developed and their software implementation is
carried out, since the cellular automata field is one of the key requirements for using
the cellular automata method. Another key requirement is the availability of adequate
transition rules. For their development, the analysis of mathematical models of heat and
moisture transfer processes in periodic drying chambers is carried out. Transition rules
are being developed, which make it possible to determine changes in temperature and
moisture content of the material, as well as changes in the main parameters of the
drying agent, which include temperature and relative humidity. The paper also simulates
the drying process of capillary-porous materials based on the developed cellular
automaton model, which includes the cellular automaton field and transition rules. The
input data for modeling are taken from the parameters of technological conditions that
are used in real drying chambers. Pine with a thickness of 45 mm was chosen as the
studied capillary-porous material. with an initial moisture content of 65%. As a result
of the simulation, graphical dependences of the desired parameters of the material and
the drying agent with respect to time were obtained. Verification of the obtained
results is carried out by comparing them with data collected by sensors in a real drying
chamber. For comparison, a relative error is determined, the average values of which do
not exceed 10%. This result confirms the adequacy of the developed model of cellular
automata.
Publisher
Lviv Polytechnic National University