Volume: 19 Issue-01 (January-June) 2024

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SOLAR STILL ADVANCE MENTS PCM AND NPCM APPLICATIONS FOR EFFICIENT TREATMENT OF WATER: AN EXPERIMENTAL APPROACH

ABSTRACT

The experiment compared three solar still designs that were employed: simple solar still (SS), solar still with phase change material (PCM), and solar still with phase change material and nanoparticles (NPCM), using water from different sources in Shahdol, Madhya Pradesh, India. Samples W1, W2, W3, and W4 were tested for parameters like TDS, turbidity, pH, and total hardness. Water from all three systems met BIS-10500 chemical standards. Sample W2, with the least contamination, showed the highest SS productivity at 1997 ml/m2/day. High pollutant contamination hindered the evaporation process, reducing vapor pressure and solar radiation transmissibility. PCM yielded 3220 ml/m2/day, while NPCM reached 4305 ml/m2/day. The NPCM system consistently outperformed, producing 3250 ml/m2 for W1, 3510 ml/m2 for W3, and 2860 ml/m2 for W4. The study highlights NPCM’s superiority in water production over other solar stills, emphasizing its potential for efficient fresh water generation.

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