Table 3. Basis of Economics.
| parameter | formulas or data | units |
|---|---|---|
| Column | ||
| θ | 1.1 | |
| H | (NT2) × 1.2 × 0.61 | m |
| Ccol | 17,640 × D1.066 × H0.802 × θ | $ |
| Ctray | D1.55 × (NT-2) × 229 | $ |
| Condenser | ||
| U | 0.852 | kW/m2/K |
| LMTD | 15 | K |
| Ac | Qc/U/LMTD | m2 |
| Chexc | 7296 × Ac0.65 | $ |
| CW | 0.354 | $/GJ |
| Ccon | Qc × CW | $ |
| Reboiler | ||
| U | 0.568 | kW/m2/K |
| LMTD | 20 | K |
| Ar | QR/U/LMTD | m2 |
| Chexr | 7296 × Ar0.65 | $ |
| MP | 8.22 | $/GJ |
| Creb | QR × MP | $ |
| Vacuum system | ||
| Vc | D2× H × 0.785 | m3 |
| M | 5 + (0.028 + 0.03088 × ln(7602× P)-0.0005733 × ln(7602× P)2× (Vc/0.0283168)0.66) | |
| Cvs | 1640 × (M/P/7602)0.41 | $ |