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Numerical study on mixed buoyancy-wind driving induced flow in a solar chimney for building ventilation

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  • Zamora, B.
  • Kaiser, A.S.

Abstract

In a solar chimney, the buoyancy induced flow of air generates ventilation of the building where the chimney is attached. When atmospheric wind blows over the upper part of a solar chimney, a mixed buoyancy-wind driving induced flow appears, and then the thermal behaviour of the chimney changes drastically. Assuming that the chimney is devoid of any protective device at its upper part, numerical results for the pressure difference coefficients, average Nusselt number and the induced mass flow rate are obtained for values of Rayleigh number varying from 107 to 1012 (symmetrically, isothermal heating condition) and 1011 to 1015 (symmetrically, uniform heat flux heating condition), with wind speeds from 0 to 10 m/s. A correlation for the non-dimensional mass flow rate is presented, which is valid for the complete range of relevant parameters regarded, with an average deviation about 6%.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:9:p:2080-2088
    DOI: 10.1016/j.renene.2010.02.009
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    References listed on IDEAS

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    1. Awbi, H.B., 1994. "Design considerations for naturally ventilated buildings," Renewable Energy, Elsevier, vol. 5(5), pages 1081-1090.
    2. 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.
    3. Harris, D.J. & Helwig, N., 2007. "Solar chimney and building ventilation," Applied Energy, Elsevier, vol. 84(2), pages 135-146, February.
    4. 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.
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    Citations

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    Cited by:

    1. Zhang, Tiantian & Yang, Hongxing, 2019. "Flow and heat transfer characteristics of natural convection in vertical air channels of double-skin solar façades," Applied Energy, Elsevier, vol. 242(C), pages 107-120.
    2. 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.
    3. 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.
    4. 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).
    5. Shi, Long, 2018. "Theoretical models for wall solar chimney under cooling and heating modes considering room configuration," Energy, Elsevier, vol. 165(PB), pages 925-938.
    6. Peci López, F. & Ruiz de Adana Santiago, M., 2015. "Sensitivity study of an opaque ventilated façade in the winter season in different climate zones in Spain," Renewable Energy, Elsevier, vol. 75(C), pages 524-533.
    7. Ping Yuan & Zhicheng Fang & Wanjiang Wang & Yanhui Chen & Ke Li, 2023. "Numerical Simulation Analysis and Full-Scale Experimental Validation of a Lower Wall-Mounted Solar Chimney with Different Radiation Models," Sustainability, MDPI, vol. 15(15), pages 1-16, August.

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