Solar energy

Solar distillation of brackish water is a practical alternative which offers life to those regions where the lack of fresh water hinders development. In arid zones of Algeria, there is an abundance of the sun’s energy where the shortage of fresh water is more critical; these arid zones have the high

We proposed a newly designed, compact multiple-effect diffusion-type solar still consisting of a heat-pipe solar collector and a number of vertical parallel partitions in contact with saline-soaked wicks. The solar collector and the vertical multiple-effect diffusion-type solar still can be folded o

A solar still in which charcoal functions both as heat absorber medium and as wick has been constructed. The still presents a 15% improvement in productivity over wick-type stills, is cheap, simple to construct, and in addition has the advantages of low thermal capacity, lightweight and ease of oper

This paper presents the development of a new process to desalinate seawater using solar energy. By the proposed process, the solar energy heats airflow up to a temperature between 50 and 80°C. The moderate solar heated air will be humidified by injecting seawater into the air stream. Later on, the w

It is a well-known fact that the energy used in the process of desalinating seawater is directly proportional to the amount of salt extracted from the water. Very small portions of fresh water consumed in each house is used for drinking and cooking, the rest is used for flushing, cleaning, and water

The humidification–dehumidification process (HD) is an interesting technique adapted for water desalination when the demand is decentralized. This technique presents several advantages such as flexibility in capacity, moderate installation and operating costs, simplicity, possibility of using low te

A practical scale desalination system harnessing only solar energy as the heat source from solar collectors and the power source from solar cells is in operation at the Al Azhar University in Gaza. The unit was developed and manufactured by the Ebara Corporation (Tokyo) and the Water Research Center

In this paper different solar systems of seawater distillation are proposed and economically analyzed. The solar collectors are parabolic trough ones in which brine circulates as thermal fluid. Steam is directly obtained from circulating brine. The solar collector field could be connected to condens

Achievements and potential of coupling between renewable energy sources and brackish or seawater desalting technologies in Tunisia have been investigated. These sources of energy, mainly solar, wind and geothermal, have been identified throughout the country, and their suitability for coupling with