Energy from salt gradient solar pond
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Date
2017
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UMT, Lahore
Abstract
For the useful conversion of solar energy solar ponds are probably one of the simplest technologies available. Solar ponds have been used for many applications like conversion of solar energy into thermal and electrical energy. These conversions are economically viable and technically feasible particularly in Pakistan. Pakistan is an agricultural country and swirly facing waterlogging and salinity problem, which is a drag to economy. Almost 43% of the area in Indus Basin Irrigation System (IBIS) is classified as waterlogged having depth to water table less than 3m.To demonstrate the technical and economic feasibility of solar pond in Pakistan water samples are taken from the villages near Hudiara drain Lahore. Then quality of water samples is tested and found highly saline. It is proposed to construct salt gradient solar ponds in villages near Hudiara drain Lahore by using saline water from the underground of the water logged area. By utilization of energy obtained from salt gradient solar pond, we can pump out the underground saline water and use that water for next solar pond, whose energy can be used again to repeat the same cycle. This may be continued till all the logged water is drained out. This way the logged and saline land can be turned into the land suitable for agriculture purpose.