|
| Parameter | Description | Value |
|
| Cross-sectional area of extraction tank (m2) | 3 |
| Steam temperature before entering extraction tank (°C) | 125 |
| Volume ratio of water and steam | 1/80 |
| Standard heat of liquefaction of vapor (kJ/mol) | 40.68 |
| Specific heat capacity of feed liquid (kJ/(kg × °C)) | 4 |
| Specific heat capacity of water (kJ/(kg × °C)) | 4.2 |
| Coefficient in | 4.4 |
| Coefficient in | 0.001 |
| Lifting area of oil layer (m2) | 2.8 |
| Density of water (g/cm3) | 1 |
| Density of volatile oil (g/cm3) | 0.72 |
| Acceleration of gravity (m/s2) | 9.8 |
| Diameter of oil droplet (m) | |
| Initial concentration of volatile oil in herbs | 0.3 |
| Radius of solid herb particle (m) | |
| Thickness of liquid film (m) | |
| Thickness of gas film (m) | |
| Sinuosity of holes inside gray layer in solid particle | 1.2 |
| Porosity of gray layer in solid particle | 0.98 |
| Solubility of EC in liquid film | 0.85 |
| Associating parameter of solvent | 2.65 |
| Molecular weight of solvent (D) | 100 |
| Molecular volume of EC (m3) | |
| Linear equilibrium proportional constant | 0.15 |
| Initial liquid level in extraction tank (m) | 3.5 |
| Initial temperature of feed liquid in extraction tank (°C) | 20 |
| Initial concentration of EC in solvent | 0 |
| Sampling period (s) | 0.05 |
|
