Cost-effective Seawater Purification System Using Solar Photovoltaic

The world is improving day by day. But besides this improvement, pure drinking water and fossil energy reduce at a significant rate. Access to basic drinking water and energy is a daily struggle for billions of people around the world. Bangladesh is one of these counties where power and accessible pure water are one of the prime concerns which rising worse in recent days mostly in the rural and coastal regions. Salinity at the coastal areas increases at an alarming rate due to climate change. Desalination facilities are consuming a large amount of energy from conventional power sources and its very expensive. To bring the cost down at an economically sustainable level, renewable energy can be considered which is the best way for alternative power sources for freshwater production. In this paper, Chittagong is chosen for the water purification system. Because this region has the highest lack of access to fresh drinking water and vulnerable to climate change. The average total dissolved solids (TDS) of water are range from 3000 to 7000 mg/L in this region which is much higher from the WHO (World Health Organization) standard of fresh drinkable water (TDS < 1000 mg/L). This research primarily focuses on supplying drinking water according to the WHO standard and also providing basic energy by a standalone solar system. This system is simulated using HOMER and WinFlows software and found that the cost of purification water reduces to $0.00191 per liter.