Table 3 Economic analysis of HSD with and without black sponge porous medium as the interfacial evaporation medium.
THSD | HSD & HPBSL | ||||
|---|---|---|---|---|---|
1 cm | 2 cm | 3 cm | 4 cm | ||
Total capital cost, $ | 61.55 | 61.96 | 62.17 | 62.37 | 62.58 |
Annual capital cost, $ | 10.89 | 10.96 | 11 | 11.04 | 11.08 |
Annual salvage value, $ | 0.7 | 0.71 | 0.71 | 0.71 | 0.71 |
Annual operating and maintenance cost, $ | 3.27 | 3.29 | 3.3 | 3.31 | 3.32 |
Annual total cost, $ | 13.46 | 13.54 | 13.59 | 13.64 | 13.69 |
Annual distillate productivity, l/m2.year | 1121 | 1566 | 1728 | 1931 | 1782 |
Water cost per liter, $/l | 0.012 | 0.0086 | 0.0078 | 0.007 | 0.0076 |
Reduced cost of distilled water productivity compared to THSD, % | – | 28.33 | 35 | 41.67 | 36.67 |
