Solar desalter with pyramid cover: improvement and thermal analysis

Abstract

Access to drinking water is still difficult for many Brazilian families, especially those in the northeast of the country, who often resort to water from tube wells, most of which have high salinity and are not suitable for human consumption. One technique used for brackish water treatment is solar desalination, which is an affordable and low-cost technology. This work aims to make improvements in an already developed solar desalter. with the intention of increasing its efficiency and making its application viable as an alternative to the treatment of brackish water from tube wells in the semi-arid Potiguar region. In order to assess the efficiency of the prototype, analyses of important parameters were performed, namely, room temperature; temperature of the distilled water; temperature of the deck and the solar radiation, where the prototype demonstrated satisfactory performance