DESALINATION OF BRAKISH WATER USING SOLAR STILL WITH PHASE CHANGE MATERIAL

Mechanical engineering

The only nearly inexhaustible sources of water are the oceans, which is of high salinity. However, the separation of salts from seawater requires large amounts of energy which, when produced from fossil fuels, can cause harm to the environment. Therefore, there is a need to employ environmentally friendly energy sources in order to desalinate seawater. In this project we designed a solar still (single basin), which can be used for water desalination (removing salt content from water using solar energy). Probably, they are considered the best solution for water production in remote, arid to semi-arid, small communities, where fresh water is unavailable. The purpose of this project is to study the effect of using phase change materials in a solar still, and thus enhance the productivity of water. In present work phase change material(Myristic Acid) is used to store the solar thermal energy in the form of latent heat, which can offer high storage capacity per unit volume and per unit mass and we can get heat in the night time for desalination.

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