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<p>This research introduces an advanced solar pond-assisted solar still system, integrating layered thermal management to optimize water distillation efficiency. The design incorporates three key layers: the Upper Converting Layer (UCL) for rapid solar absorption, the Middle Converting Layer (MCL) for consistent heat transfer, and the Lower Converting Layer (LCL) for sustained thermal retention. The UCL, equipped with reflective mirrors and fins, enhances heat absorption, improving efficiency from 42 to 50%. The MCL ensures a steady heat supply, increasing efficiency from 48 to 71%, while the LCL retains heat to maintain 86% efficiency, enabling night-time operation. Comparative analysis demonstrates that this innovative system enhances distillate yield by 35% over conventional solar stills, making it a sustainable, energy-efficient, and cost-effective solution for water purification. The experimental validation underscores its potential for large-scale deployment in high solar radiation regions, addressing freshwater scarcity through renewable means.</p>

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Enhanced thermal management in solar still-pond systems for sustainable infrastructure and water purification

  • 期刊论文

  • 发表日期：

    2025年4月19日

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  • M. Muthu Kumar,
  • S. Rajesh,
  • S. Joe Patrick Gnanaraj,
  • V. Kannan

摘要

This research introduces an advanced solar pond-assisted solar still system, integrating layered thermal management to optimize water distillation efficiency. The design incorporates three key layers: the Upper Converting Layer (UCL) for rapid solar absorption, the Middle Converting Layer (MCL) for consistent heat transfer, and the Lower Converting Layer (LCL) for sustained thermal retention. The UCL, equipped with reflective mirrors and fins, enhances heat absorption, improving efficiency from 42 to 50%. The MCL ensures a steady heat supply, increasing efficiency from 48 to 71%, while the LCL retains heat to maintain 86% efficiency, enabling night-time operation. Comparative analysis demonstrates that this innovative system enhances distillate yield by 35% over conventional solar stills, making it a sustainable, energy-efficient, and cost-effective solution for water purification. The experimental validation underscores its potential for large-scale deployment in high solar radiation regions, addressing freshwater scarcity through renewable means.