Table 6 Thermodynamic properties of OD and HSDS for ESML under different drying temperatures and layers thicknesses.
Drying system | DAT, ºC | LT, cm | Enthalpy (ΔH), kJ mol− 1 | Entropy (ΔS), kJ mol− 1 K− 1 | Gibbs free energy (ΔG), kJ mol− 1 |
|---|---|---|---|---|---|
OD | 50 | 1 | 29.27 | -0.175 | 85.78 |
2 | 31.96 | -0.192 | 93.85 | ||
3 | 24.99 | -0.176 | 81.82 | ||
60 | 1 | 29.18 | -0.175 | 87.53 | |
2 | 31.87 | -0.192 | 95.77 | ||
3 | 24.91 | -0.176 | 83.58 | ||
70 | 1 | 29.10 | -0.175 | 89.28 | |
2 | 31.79 | -0.192 | 97.69 | ||
3 | 24.83 | -0.176 | 85.35 | ||
HSD | 50 | 1 | 29.99 | -0.177 | 87.05 |
2 | 39.22 | -0.213 | 107.95 | ||
3 | 24.67 | -0.173 | 80.68 | ||
60 | 1 | 29.91 | -0.177 | 88.82 | |
2 | 39.13 | -0.213 | 110.08 | ||
3 | 24.58 | -0.174 | 82.41 | ||
70 | 1 | 29.83 | -0.177 | 90.58 | |
2 | 39.05 | -0.213 | 112.21 | ||
3 | 24.50 | -0.174 | 84.15 |