PERFORMANCE ENHANCEMENT STRATEGIES FOR BASIN-TYPE SOLAR DESALINATION SYSTEMS: A COMPREHENSIVE REVIEW AND NOVEL INTEGRATED DESIGN CONCEPT
Keywords:
solar desalination, basin-type solar still, external condenser, solar air collector, forced circulation, photovoltaic integration, productivity enhancement.Abstract
Global population growth and freshwater scarcity have intensified the demand for sustainable desalination solutions. Solar stills are environmentally friendly and economical but suffer from low productivity due to significant latent heat losses and limited thermal efficiency. This study reviews key enhancement techniques for basin-type solar stills, including the use of external condensers, solar collectors, nanofluids, and advanced evaporation surfaces. Identified research gaps highlight the need for integrated solutions that improve both evaporation and condensation simultaneously. To address this, a combined basin-type solar desalination system (CBSS) featuring a solar air collector, external condenser, and photovoltaic-powered circulation is proposed. The concept aims to significantly increase freshwater yield and ensure autonomous energy operation for deployment in water-scarce regions.
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