TECHNIQUES TO IMPROVE PRODUCTIVITY OF SPHERICAL SOLAR STILL

Energy Engineering

Clean water is essential for social and economic development of any country. There is limited access to water that meets standard limits of water quality, especially in the Indian region. The water quality can be improved through desalination. Techniques used for desalination are available but the energy requirement is more, and also fossil fuels affects environment. Consequently, there is need to use renewable energy sources, solar energy is also one of the most promising alternatives. A conventional solar still is experimented but it has low efficiency. Thus, many modelling and design attempts have been made to improve its productivity. Models which are experimented would therefore have limited accuracy. For still design, different modifications that included the use of a reflector and external condenser were experimented. The objective of this investigation is to find out different techniques to improve the productivity of spherical solar still.

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