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<p>A solar-based heat exchanger featuring a flat plate solar collector (FPSC) demonstrates stable performance under moderate weather conditions. The incorporation of phase change materials (PCM) enhances thermal performance by improving heat absorption. However, variations in thermal efficiency result in reduced thermal conductivity and lower fluid outlet temperatures, which can be attributed to climatic conditions. This research on FPSC thermal performance and its thermal efficiency is enriched by using paraffin PCM and hybrid nanofluid combinations of 1, 2, and 3% volume concentrations of copper oxide (CuO) and zinc oxide (ZnO) as the ratios of 60:40. Effect of water fluid, PCM, and combinations of PCM with different volume percentages of CuO/ZnO on thermal performance. The thermal efficiency of the FPSC system is investigated, and its results are compared. With the excellence of PCM and improved hybrid nanofluid (3%), volume concentrations improved thermal conductivity (0.727 W m<sup>−1</sup> K<sup>−1</sup>), better enhancement in outlet temperature (68.4&#xa0;°C), superior heat transfer behavior (9.86&#xa0;kW), better heat transfer coefficient of 2353&#xa0;Wm<sup>−2</sup>&#xa0;K<sup>−1</sup>, optimum thermal and exergy efficiency of 74.6% and 24.5%, and enhanced heat stored/ released by PCM resulting improved workability. It is better than the thermal performance and thermal efficiency behavior of water FPSC systems without hybrid nanofluid with PCM combinations.</p>

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Enrichment of thermal performance of solar thermal heat exchanger featured with PCM and hybrid nanofluid for space cooling

  • 期刊论文

  • 发表日期：

    2025年8月5日

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  • Madhu Balasubramanian,
  • N. Nagabhooshanam,
  • Prahalad Singh Parihar,
  • Navin Kedia,
  • Jemmy Christy H,
  • G. Satya,
  • Ramya Maranan,
  • R. Srinivasan,
  • S. Sathiyamurthy

摘要

A solar-based heat exchanger featuring a flat plate solar collector (FPSC) demonstrates stable performance under moderate weather conditions. The incorporation of phase change materials (PCM) enhances thermal performance by improving heat absorption. However, variations in thermal efficiency result in reduced thermal conductivity and lower fluid outlet temperatures, which can be attributed to climatic conditions. This research on FPSC thermal performance and its thermal efficiency is enriched by using paraffin PCM and hybrid nanofluid combinations of 1, 2, and 3% volume concentrations of copper oxide (CuO) and zinc oxide (ZnO) as the ratios of 60:40. Effect of water fluid, PCM, and combinations of PCM with different volume percentages of CuO/ZnO on thermal performance. The thermal efficiency of the FPSC system is investigated, and its results are compared. With the excellence of PCM and improved hybrid nanofluid (3%), volume concentrations improved thermal conductivity (0.727 W m−1 K−1), better enhancement in outlet temperature (68.4 °C), superior heat transfer behavior (9.86 kW), better heat transfer coefficient of 2353 Wm−2 K−1, optimum thermal and exergy efficiency of 74.6% and 24.5%, and enhanced heat stored/ released by PCM resulting improved workability. It is better than the thermal performance and thermal efficiency behavior of water FPSC systems without hybrid nanofluid with PCM combinations.