Design and Manufacture Three Solar Distillation Units and Measuring Their Productivity

Calculating the Quantity and Cost of Distilled Water Produced by Solar Plants to Desalinate Drain Water and use it in Irrigation

“…AC s = C s * (CRF) …………..…..…………… (7) Cs is the total cost, CRF is the capital recovery factor and is given by the following equation: By using the amount of daily needs of irrigation water for some agricultural crops, on condition that their length is not more than one meter to ensure that the distillers are not covered and sunlight is blocked from them, and by calculating the remaining area of the dunam (2000 m 2 ) and relying on drip irrigation, it turned out that the best agricultural crops that can be grown are chickpeas, Al-Hana And lentils as shown in Table 6. Chickpea is considered one of the crops that are very sensitive to salinity, meaning that it bears the concentration of salts in the irrigation water of no more than (700 mg/L), while the cabbage is considered a medium sensitive to salinity, meaning that it bears the concentration of salts in the irrigation water between (1000-2000 mg/L) [27].…”

“…In 2015, researchers made a comparison between three units for distillation of solar water (M1, M2, M3), where M1 represents an ordinary solar distiller, M2 differs from the first distiller by adding a winding collector to the tank supplied with brine and M3 is similar to M2, but a base was added to the distiller to increase the potential energy that leads to an increase in evaporation by increasing the water temperature. The results showed that the productivity of M2 is greater than that of M1 by 42%, while the productivity of M3 is more than M1 by 52% [7]. In 2015, the researchers also used lenses to increase the efficiency and productivity of the distiller by focusing the solar rays on the distillation basins and thus focusing the rays on the water that will be distilled, and the second study was using individual basins instead of a water basin.…”