Table 2-2. Summary of equations used in a model of heat and
mass transfer in the soil to determine state
variables and transport parameters.
Process or Parameter Equation No.
Conservation of mass (liquid) 2-22
Conservation of mass (vapor) 2-25
Conservation of energy 2-26
Vapor-Liquid equilibrium 2-30
Surface Boundary Conditions
Conservation of mass (liquid) 2-31b
Conservation of mass (vapor) 2-31c
Conservation of energy 2-31a
Lower Boundary Conditions
Conservation of mass (liquid) 2-32b
Conservation of mass (vapor) 2-31c
Conservation of energy 2-32a
Soil properties
Diffusivity of water vapor in soil (Dv) 2-34
Volumetric heat capacity (Cs) 2-35
Thermal Conductivity (X) 2-36
Hydraulic Diffusivity (DL) 2-40
Surface Mass Transfer Coefficient (hm) 2-50
Surface Heat Transfer Coefficient (hh) 2-51