The role of energy potential in the mass transfer of moisture in the capillaries of woody plants

Abstract

Abstract Theoretical and experimental studies of the growth and development of tree and shrub vegetation are determined by sorption characteristics, which depend on the moisture content in capillary-porous materials of phytomass stands. Thermodynamic parameters of mass transfer and their gradients are of fundamental importance. The purpose of this theoretical study was to solve a scientific problem on the development of theoretical foundations for mathematical modeling of mass transfer of moisture and nutrients in the vascular system of growing wood material, taking into account the energy potential. The research provides a theoretical justification and consideration of the thermodynamics of moisture mass transfer in the capillaries of wood materials. Based on the study of thermodynamic driving forces in capillary-porous growing wood bodies, it is established that the mass transfer potential is the chemical potential, which in the vascular system of wood and bast depends on free and chemically-bound moisture. The equations of filtration effect of moisture and moisture gradients on the mass transfer of moisture in capillary-growing wood materials, given the thermodynamic potential in non-isothermal conditions for wood phytomass, depending on the rate of change of thermodynamic potentials.