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The present paper is concerned with the investigation of the influence of many factors such as nanoparticles and base fluid types, volume fraction, and flow regime on the performance of parabolic-trough solar collectors (PTCs). The main focus was to evaluate numerically the effect of nanofluids on thermal efficiency and heat transfer coefficient enhancement. The numerical study of forced convection heat transfer during a steady single-phase Newtonian flow through a smooth absorber of PTCs is released using CFD software based on the finite volume method. The calculations are carried out for different heat transfer fluids, synthetic oil Terminol VP-1 as base fluid. The considered nanoparticles are respectively, Cu, Al2O3 and C. The analysis of the temperature evolution and the rate of heat transfer improvement was performed. The obtained results show that the heat transfer is improved with the increase of nanoparticles concentration in the base fluid. Also, we deduced that the metallic nanofluid allowed more heat transfer. It was revealed that nanofluids enhance the thermal efficiency, convection heat transfer coefficient of the system.

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Modelling and Simulation of Heat Exchange in Single-Phase Flow of Nanofluids Through the Parabolic-Trough Collector's Solar Receivers

  • 章节

  • 发表日期：

    2025年

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  • S. Lecheheb,
  • H. Karoua,
  • A. Bouhallassa,
  • M. Laissaoui

摘要

The present paper is concerned with the investigation of the influence of many factors such as nanoparticles and base fluid types, volume fraction, and flow regime on the performance of parabolic-trough solar collectors (PTCs). The main focus was to evaluate numerically the effect of nanofluids on thermal efficiency and heat transfer coefficient enhancement. The numerical study of forced convection heat transfer during a steady single-phase Newtonian flow through a smooth absorber of PTCs is released using CFD software based on the finite volume method. The calculations are carried out for different heat transfer fluids, synthetic oil Terminol VP-1 as base fluid. The considered nanoparticles are respectively, Cu, Al2O3 and C. The analysis of the temperature evolution and the rate of heat transfer improvement was performed. The obtained results show that the heat transfer is improved with the increase of nanoparticles concentration in the base fluid. Also, we deduced that the metallic nanofluid allowed more heat transfer. It was revealed that nanofluids enhance the thermal efficiency, convection heat transfer coefficient of the system.