الفهرس 
Seawater and brackish waterOnly 14 pages are availabe for public view
 |  | from | 202 |  |  |
| | | from | 202 | | |
Abstract
The availability of saline water provides a solution to the acute shortage of pure water, using desalination processes. Among all desalination techniques, humidification-dehumidification desalination is the most efficient method. Humidification-dehumidification process needs high energy, the required energy was obtained from ordinary energy sources. Ordinary energy sources have a distasteful influence on the environment, which could be solved using renewable energy sources; however, the main problem of renewable energy is storage. A new design of the storage system is investigated. PCM is used with the new design of the storage unit that was constructed and tested when it was integrated with the flat plate solar water heater (FPSWH). Three configurations of storage techniques are proposed with water and paraffin wax (PAW). Whereas both water and PCM were used as a thermal storage material. The proposed systems were tested at a different mass flow rate (MFR) of heat transfer fluid. The MFR of heat transfer fluid (𝑚.1) has an optimum value of 0.14 kg/s when the FPSWH is combined with the water storage tank, considering that the daily average efficiency was 39%. The best performance of the FPSWH when it is integrated with PAW as PCM is achieved by using 𝑚.1= 0.16 kg/s, and efficiency was 43%. The FPSWH with using both of the PCM and water as storage materials, achieved the best performance during day-long when the temperature of storage water reaches 60.4 ˚C. Moreover, there is a great quantity of energy still stored in the PCM for any emergency load. Besides, desalination system by HDD was studied. A FPSWH was also integrated with the HDD system to heat the saline water with different MFRs of water and air, as well as different salinity water treatment.