Energy Efficient Stepped Basin Type Solar Still: A Review

Energy efficient stepped basin type solar still is used to enhance the productivity of solar still. The efficiency of flat basin type solar still is low which is known as conventional solar still. In order to increase the efficiency of solar still we use stepped basin by replacing the flat basin. It is found that the efficiency of stepped basin type solar still is higher than the conventional solar still because of its large absorbing area or basin area. The number of step in basin is five. The tray of galvanized iron sheet with minimum depth is mounted on each steps of basin. In addition we also introduced internal reflector. The effect of installing a reflecting mirror on vertical side of the steps of stepped still also help to enhance the productivity of solar still. This project mainly focus on maximizing the production of distilled water by emphasizing the three important factors; decrease in depth of water, increase in exposure area and temperature of saline water