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<p>The solar chimney power plant (SCPP) is regarded as one of the promising technologies for producing electricity cleanly and sustainably. The objective of the present investigation is to assess the performance of solar cheminey for various protruding absorber surfaces. Different shapes, including the right triangle, equilateral triangle, rectangle, and semi-circle, are examined for varying numbers, positions, and arrangements. The conservation equations with standard K-ε turbulent model are solved numerically using CFD software (ANSYS Fluent). A good agreement of the numerical results is obtained with experimental open data. Thermo-hydrodynamic behavior and generated power of the SCPP are analyzed for various protruding absorber configurations. The numerical findings indicate that the solar chimney performance significantly depends on the absorber design. Moreover, placing rectangular protruding at the collector outlet, adding a single rectangular protruding extending along the collector radius, and arranging protruding with decreasing distances from the collector inlet to the outlet enhance the SCPP performance and increase the output power by 79.88%, 88.26% and 81.12%, respectively, compared to the standard chimney. These findings are aimed at contributing to the effort towards the design of efficient solar chimneys.</p>

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The impact of different protruding absorber surface configurations on the efficiency of solar chimney power plant

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • Aissa Atia,
  • Toufik Benchatti,
  • Said Bouabdallah,
  • Mohamed Teggar,
  • Badia Ghernaout,
  • Ahmed Benchatti

摘要

The solar chimney power plant (SCPP) is regarded as one of the promising technologies for producing electricity cleanly and sustainably. The objective of the present investigation is to assess the performance of solar cheminey for various protruding absorber surfaces. Different shapes, including the right triangle, equilateral triangle, rectangle, and semi-circle, are examined for varying numbers, positions, and arrangements. The conservation equations with standard K-ε turbulent model are solved numerically using CFD software (ANSYS Fluent). A good agreement of the numerical results is obtained with experimental open data. Thermo-hydrodynamic behavior and generated power of the SCPP are analyzed for various protruding absorber configurations. The numerical findings indicate that the solar chimney performance significantly depends on the absorber design. Moreover, placing rectangular protruding at the collector outlet, adding a single rectangular protruding extending along the collector radius, and arranging protruding with decreasing distances from the collector inlet to the outlet enhance the SCPP performance and increase the output power by 79.88%, 88.26% and 81.12%, respectively, compared to the standard chimney. These findings are aimed at contributing to the effort towards the design of efficient solar chimneys.