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<p>The experimental thermal performance regarding a parabolic trough solar collector (PTSC) with a new helical receiver tube under various water flow rates was investigated. The PTSC prototype’s experimental test findings for thermal performance at controlled water flow rates (0.10, 0.30, and 0.50&#xa0;kg/min) are collected. These results include collector thermal efficiency, useful heat gain, and water temperature rise. Based on the results, increasing the water mass flow rates leads to a reduction in average water output temperature of 102.94, 66.71, and 46.82&#xa0;°C, respectively, and a rise in maximum outlet temperature of 112.5, 76.3, and 61.54&#xa0;°C, respectively. Thus, the average useful heat gain is then 1101.28, 690.92.6, and 657.34&#xa0;W, respectively, and the average thermal efficiency falls to 69.4, 57.51, and 44.38%, respectively. The key contribution of this study is the design and implementation of a novel helical receiver integrated within a PTSC, which was experimentally tested and shown to significantly enhance thermal performance compared to a conventional receiver of a parabolic collector. According to the experimental findings, a 73.5% reduction in water mass flow rate resulted in a 66.8% rise in PTSC’s thermal efficiency.</p>

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Experimental and Performance Evaluation of a Helical Receiver in Parabolic Trough Solar Collectors

  • 期刊论文

  • 发表日期：

    2025年9月16日

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  • Vinous M. Hameed,
  • Mustafa Abdulmjeed,
  • Marwa Ali

摘要

The experimental thermal performance regarding a parabolic trough solar collector (PTSC) with a new helical receiver tube under various water flow rates was investigated. The PTSC prototype’s experimental test findings for thermal performance at controlled water flow rates (0.10, 0.30, and 0.50 kg/min) are collected. These results include collector thermal efficiency, useful heat gain, and water temperature rise. Based on the results, increasing the water mass flow rates leads to a reduction in average water output temperature of 102.94, 66.71, and 46.82 °C, respectively, and a rise in maximum outlet temperature of 112.5, 76.3, and 61.54 °C, respectively. Thus, the average useful heat gain is then 1101.28, 690.92.6, and 657.34 W, respectively, and the average thermal efficiency falls to 69.4, 57.51, and 44.38%, respectively. The key contribution of this study is the design and implementation of a novel helical receiver integrated within a PTSC, which was experimentally tested and shown to significantly enhance thermal performance compared to a conventional receiver of a parabolic collector. According to the experimental findings, a 73.5% reduction in water mass flow rate resulted in a 66.8% rise in PTSC’s thermal efficiency.