Abstract
The shortage of drinking water source limits the socio-economic development of many areas of the world. Saudi Arabia has very limited resources in fresh water source and around 40 to 50% of portable water in Saudi Arabia is produced by desalination technology which depends on using fossil energy. The high cost of the water and electricity production reflects depleting the Oil resources of the country which is nonrenewable, solar energy would be a good alternative since Saudi Arabia has abundant free solar energy. This study investigates the feasibility of using concentrated solar power system (CSP) for thermal desalination. The study is conducted for CSP coupled with multi effect desalination with thermal vapor compressor (MED-TVC) existed in western province Saudi Arabia in five locations with various DNI, for two cases, without storage and with 16 hours storage. The total saving from coupling solar collectors to all five plants shows around 20.45 million $ per year. Using of solar energy can reduce carbon dioxide emission to the environment by 420 thousands ton per year for all selected plants.
Highlights
Fresh water demand is persistently increasing as populations around the world keep growing and as existing fresh water reserves keep declining due to high consumption and pollution [1]
A techno economic analysis was performed for multi effect desalination with thermal vapor compressor (MED-TVC) desalination plant based of Average plant production, performance ratio and Availability extracted from actual data
A techno economic analysis of combination between concentrated solar power system (CSP) and MED-TVC was carried out for five existed MED-TVC plants located at western region of Saudi Arabia (AL-Wajih, Umluj, Rabigh, AL-Qunfuthah and Frasan)
Summary
Fresh water demand is persistently increasing as populations around the world keep growing and as existing fresh water reserves keep declining due to high consumption and pollution [1]. 97% of the earth’s water is available is salty water in the oceans and sea while only 3% remained is fresh water. About 70% of the fresh water is frozen in the earth poles and the other 30% is ground water Rivers, which used for drinking water [2]. This limited resources of fresh water is not enough to fulfill human requirement as drinking, industrial and agriculture use. Desalination can play an important solution of the scarcity of fresh water
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