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<p>Parabolic solar trough collector (PTC) is a prospective and viable solution to avail solar energy. This investigation has done a thorough numerical examination of different LS-2 models of PTC before they can be provided for manufacturable shape with improved thermal performance. Here, instead of taking one single receiver tube six spinning tubes of various diameters are chosen for simulation. Ternary nanofluid of 1% vol. fraction obtained by merging aluminum oxide(Al<sub>2</sub>O<sub>3</sub>), copper(Cu), and silver(Ag) in three types of base liquid (water, soya oil and Therminol 55) is considered as heat-conveying medium. A total of four cases are drafted and simulated in ANSYS 23 Fluent. Optical simulation is conducted on Tonatiuh 2.2.4. Flow rate is set between 0.016 and 0.033&#xa0;kg s<sup>−1</sup>, respectively. The spinning speeds of tubes are between 0 and 15&#xa0;rad s<sup>−1</sup>. The inlet temperature is from 292 to 308&#xa0;K. Results indicate the maximum thermal efficiency also heat transfer coefficient improvement by 17.35% and 97.90% with case-3 for Therminol 55 (with (Al<sub>2</sub>O<sub>3</sub>) = 10%, (Cu) = 60%, and (Ag) = 30% in base liquid) at 15&#xa0;rad s<sup>−1</sup> tube revolving speed than water at 0.033&#xa0;kg s<sup>−1</sup>. With a similar operating condition, pump work requirement increased by 13.23% for case-3 than steady single receiver.</p>

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Performance analysis of a parabolic solar trough collector with multiple revolving tubes for ternary nanofluid and different base fluids

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Oveepsa Chakraborty,
  • Sourav Nath

摘要

Parabolic solar trough collector (PTC) is a prospective and viable solution to avail solar energy. This investigation has done a thorough numerical examination of different LS-2 models of PTC before they can be provided for manufacturable shape with improved thermal performance. Here, instead of taking one single receiver tube six spinning tubes of various diameters are chosen for simulation. Ternary nanofluid of 1% vol. fraction obtained by merging aluminum oxide(Al2O3), copper(Cu), and silver(Ag) in three types of base liquid (water, soya oil and Therminol 55) is considered as heat-conveying medium. A total of four cases are drafted and simulated in ANSYS 23 Fluent. Optical simulation is conducted on Tonatiuh 2.2.4. Flow rate is set between 0.016 and 0.033 kg s−1, respectively. The spinning speeds of tubes are between 0 and 15 rad s−1. The inlet temperature is from 292 to 308 K. Results indicate the maximum thermal efficiency also heat transfer coefficient improvement by 17.35% and 97.90% with case-3 for Therminol 55 (with (Al2O3) = 10%, (Cu) = 60%, and (Ag) = 30% in base liquid) at 15 rad s−1 tube revolving speed than water at 0.033 kg s−1. With a similar operating condition, pump work requirement increased by 13.23% for case-3 than steady single receiver.