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Comparative performance analysis of pyramid-shaped solar distiller augmented with phase change materials enriched with graphite nanoparticles: experimental study

Author

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  • Mohamed E. Zayed

    (Tanta University
    King Fahd University of Petroleum and Minerals)

  • A. E. Kabeel

    (Tanta University
    Delta University for Science and Technology
    Islamic University of Madinah)

  • Mohamed Abdelgaied

    (Tanta University)

Abstract

The present work introduces a comparative investigation on the use of paraffin wax enriched with graphite nanoparticles in the basin of a pyramidal solar distiller as a nano-composite energy storage medium to augment the distillation yield. Four diversified nanoparticle concentrations of 0%, 10%, 15%, and 20% are investigated and compared to the traditional pyramidal solar distillatory (TPSD) under the same conditions. The present findings indicated that the utilization of paraffin wax/graphite nano-composite with a graphite nanoparticles concentration of 20% represents the optimum concentration that maximizes the performance of pyramidal distillers. The daily freshwater yield of the TPSD reached 4.8 L/day.m2, whereas the integration of paraffin wax/graphite nano-composite with a concentration of 20 wt.% augmented the distilled yield to 8.72 L/day.m2 with an 81.70% improvement in the freshwater yield. Moreover, the daily energetic efficiency and exegetic efficiency of the TPSD reached 41.72% and 1.81%, respectively, while they improved to 75.55% and 4.46% with using 20 wt.% paraffin wax/graphite nano-composite, achieving an 81.08% and 146.4% enhancement in the daily energy and exergy efficiencies, respectively. Additionally, the pyramidal distiller with a 20 wt.% paraffin wax/graphite nano-composite yielded a 31.2% reduction in the cost of 1.0 L of distilled water than the TPSD.

Suggested Citation

  • Mohamed E. Zayed & A. E. Kabeel & Mohamed Abdelgaied, 2025. "Comparative performance analysis of pyramid-shaped solar distiller augmented with phase change materials enriched with graphite nanoparticles: experimental study," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 27(8), pages 19383-19403, August.
    • Handle: RePEc:spr:endesu:v:27:y:2025:i:8:d:10.1007_s10668-024-04612-7
    DOI: 10.1007/s10668-024-04612-7
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