Nonequilibrium Thermal Dynamic Modeling of Porous Medium Vacuum Drying Process

Table 1

Parameters used in the simulation process.

Parameter	Symbol	Value	Unit
Rate constant parameter	𝐾𝑟	1, 10, 1000, 10000	s^−1
Intrinsic permeability	𝑘	10^−13, 10^−14, 10^−15	m^2
Initial water saturation	𝑆𝑙0	0.6, 0.5, 0.4
Initial moisture (dry base)	𝑊0	2.01, 1.68, 1.34
Vapor pressure of vacuum drying chamber	𝑃𝑣𝑏	1000, 5000, 9000	Pa
Heat temperature	𝑇ℎ	323, 333, 343	K
Porosity	𝜀	0.615
Solid density	𝜌𝑠	476	kg m^−3
Air pressure of vacuum drying chamber	𝑃𝑎𝑏	0.001	Pa
Heat exchange coefficient	ℎ	2.5	W m^−2 K^−1
Air temperature of vacuum drying chamber	𝑇𝑎𝑚𝑏	293	K