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Numerical study of solar-wind tower systems for ventilation of dwellings

Author

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  • Nouanégué, H.F.
  • Alandji, L.R.
  • Bilgen, E.

Abstract

Numerical study is carried out of a simplified system of solar-wind tower for ventilation of dwellings. The conservation equations for mass, momentum and energy for mixed convection in two-dimensional coordinates are solved by the control volume method and Simpler algorithm. The governing parameters of the problem are Rayleigh number Ra, Reynolds number, Re (or Richardson number, Ri), the dimensionless conductivity of the solid medium, kr and the geometrical parameters. Nusselt number Nu and dimensionless volume flow rate V˙ are calculated as a function of the governing parameters, and streamlines and isotherms are produced. The results show that the important parameters affecting the ventilation performance are Ra, Re (or Ri), and the geometrical parameters, the aspect ratio A, the exit port size h1/L and to a lesser degree, the wall thickness ℓ1/L.

Suggested Citation

  • Nouanégué, H.F. & Alandji, L.R. & Bilgen, E., 2008. "Numerical study of solar-wind tower systems for ventilation of dwellings," Renewable Energy, Elsevier, vol. 33(3), pages 434-443.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:3:p:434-443
    DOI: 10.1016/j.renene.2007.03.001
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    Cited by:

    1. Shi, Long & Zhang, Guomin & Yang, Wei & Huang, Dongmei & Cheng, Xudong & Setunge, Sujeeva, 2018. "Determining the influencing factors on the performance of solar chimney in buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 88(C), pages 223-238.
    2. Rezaeian, M. & Montazeri, H. & Loonen, R.C.G.M., 2017. "Science foresight using life-cycle analysis, text mining and clustering: A case study on natural ventilation," Technological Forecasting and Social Change, Elsevier, vol. 118(C), pages 270-280.
    3. Montazeri, H. & Montazeri, F., 2018. "CFD simulation of cross-ventilation in buildings using rooftop wind-catchers: Impact of outlet openings," Renewable Energy, Elsevier, vol. 118(C), pages 502-520.
    4. Boutin, Yanik & Gosselin, Louis, 2009. "Optimal mixed convection for maximal energy recovery with vertical porous channel (solar wall)," Renewable Energy, Elsevier, vol. 34(12), pages 2714-2721.
    5. Zhang, Haihua & Yang, Dong & Tam, Vivian W.Y. & Tao, Yao & Zhang, Guomin & Setunge, Sujeeva & Shi, Long, 2021. "A critical review of combined natural ventilation techniques in sustainable buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    6. Alsailani, M. & Montazeri, H. & Rezaeiha, A., 2021. "Towards optimal aerodynamic design of wind catchers: Impact of geometrical characteristics," Renewable Energy, Elsevier, vol. 168(C), pages 1344-1363.
    7. Ren, Xiu-Hong & Liu, Run-Zhe & Wang, Yun-He & Wang, Lin & Zhao, Fu-Yun, 2019. "Thermal driven natural convective flows inside the solar chimney flush-mounted with discrete heating sources: Reversal and cooperative flow dynamics," Renewable Energy, Elsevier, vol. 138(C), pages 354-367.
    8. Hughes, Ben Richard & Calautit, John Kaiser & Ghani, Saud Abdul, 2012. "The development of commercial wind towers for natural ventilation: A review," Applied Energy, Elsevier, vol. 92(C), pages 606-627.
    9. Montazeri, H. & Montazeri, F. & Azizian, R. & Mostafavi, S., 2010. "Two-sided wind catcher performance evaluation using experimental, numerical and analytical modeling," Renewable Energy, Elsevier, vol. 35(7), pages 1424-1435.
    10. Quesada, Guillermo & Rousse, Daniel & Dutil, Yvan & Badache, Messaoud & Hallé, Stéphane, 2012. "A comprehensive review of solar facades. Opaque solar facades," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 2820-2832.
    11. Saadatian, Omidreza & Haw, Lim Chin & Sopian, K. & Sulaiman, M.Y., 2012. "Review of windcatcher technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(3), pages 1477-1495.
    12. Kalantar, Vali, 2009. "Numerical simulation of cooling performance of wind tower (Baud-Geer) in hot and arid region," Renewable Energy, Elsevier, vol. 34(1), pages 246-254.
    13. Zamora, B. & Kaiser, A.S., 2010. "Numerical study on mixed buoyancy-wind driving induced flow in a solar chimney for building ventilation," Renewable Energy, Elsevier, vol. 35(9), pages 2080-2088.

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