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A roof solar chimney assisted by cooling cavity for natural ventilation in buildings in hot arid climates: An energy conservation approach in Al-Ain city

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  • Aboulnaga, Mohsen M.

Abstract

The paper presents a parameteric analytical study of roof solar chimney coupled with wind cooled cavity using spread-sheet computer program. Detailed description and sizing of such system are presented. Separation between the external leaf and solar chimney's external glazing is optimized. The proposed roof solar chimney alone is able to create an air flow rate up to 1.6 kg/s at a mean incident solar radiation of 850W/m2. The maximum air velocity derived in the chimney is about 1.1m/s. At an average incident solar radiation 575W/m2, and air velocity in the chimney of 0.9m/s, the average mass flow rate is found as 1.3 kg/s. For a wind speed of 4.0 m/s the cooled cavity can create a mass flow of 0.35 kg/s. The system may be applied to more than one storey building. It is however, useful to be incorporated with a stand-alone building or with a cluster of buildings.

Suggested Citation

  • Aboulnaga, Mohsen M., 1998. "A roof solar chimney assisted by cooling cavity for natural ventilation in buildings in hot arid climates: An energy conservation approach in Al-Ain city," Renewable Energy, Elsevier, vol. 14(1), pages 357-363.
    • Handle: RePEc:eee:renene:v:14:y:1998:i:1:p:357-363
    DOI: 10.1016/S0960-1481(98)00090-1
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    References listed on IDEAS

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    1. Raeissi, Soona & Taheri, Mansour, 1996. "Cooling load reduction of buildings using passive roof options," Renewable Energy, Elsevier, vol. 7(3), pages 301-313.
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    Cited by:

    1. Zhang, Tiantian & Tan, Yufei & Yang, Hongxing & Zhang, Xuedan, 2016. "The application of air layers in building envelopes: A review," Applied Energy, Elsevier, vol. 165(C), pages 707-734.
    2. Friess, Wilhelm A. & Rakhshan, Kambiz, 2017. "A review of passive envelope measures for improved building energy efficiency in the UAE," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 485-496.
    3. Al-Alili, A. & Islam, M.D. & Kubo, I. & Hwang, Y. & Radermacher, R., 2012. "Modeling of a solar powered absorption cycle for Abu Dhabi," Applied Energy, Elsevier, vol. 93(C), pages 160-167.
    4. Hiba Najini & Mutasim Nour & Sulaiman Al-Zuhair & Fadi Ghaith, 2020. "Techno-Economic Analysis of Green Building Codes in United Arab Emirates Based on a Case Study Office Building," Sustainability, MDPI, vol. 12(21), pages 1-22, October.
    5. 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.
    6. Tao, Yao & Zhang, Haihua & Zhang, Lili & Zhang, Guomin & Tu, Jiyuan & Shi, Long, 2021. "Ventilation performance of a naturally ventilated double-skin façade in buildings," Renewable Energy, Elsevier, vol. 167(C), pages 184-198.
    7. Soni, Suresh Kumar & Pandey, Mukesh & Bartaria, Vishvendra Nath, 2016. "Hybrid ground coupled heat exchanger systems for space heating/cooling applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 724-738.
    8. Hanif, M. & Mahlia, T.M.I. & Zare, A. & Saksahdan, T.J. & Metselaar, H.S.C., 2014. "Potential energy savings by radiative cooling system for a building in tropical climate," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 642-650.
    9. Cheng, Xudong & Shi, Zhicheng & Nguyen, Kate & Zhang, Lihai & Zhou, Yong & Zhang, Guomin & Wang, Jinhui & Shi, Long, 2020. "Solar chimney in tunnel considering energy-saving and fire safety," Energy, Elsevier, vol. 210(C).
    10. Maerefat, M. & Haghighi, A.P., 2010. "Natural cooling of stand-alone houses using solar chimney and evaporative cooling cavity," Renewable Energy, Elsevier, vol. 35(9), pages 2040-2052.
    11. DeBlois, Justin C. & Bilec, Melissa M. & Schaefer, Laura A., 2013. "Design and zonal building energy modeling of a roof integrated solar chimney," Renewable Energy, Elsevier, vol. 52(C), pages 241-250.
    12. DeBlois, Justin & Bilec, Melissa & Schaefer, Laura, 2013. "Simulating home cooling load reductions for a novel opaque roof solar chimney configuration," Applied Energy, Elsevier, vol. 112(C), pages 142-151.
    13. Miyazaki, T. & Akisawa, A. & Kashiwagi, T., 2006. "The effects of solar chimneys on thermal load mitigation of office buildings under the Japanese climate," Renewable Energy, Elsevier, vol. 31(7), pages 987-1010.
    14. Sengupta, Ayan & Mishra, Dipti Prasad & Sarangi, Shailesh Kumar, 2022. "Computational performance analysis of a solar chimney using surface modifications of the absorber plate," Renewable Energy, Elsevier, vol. 185(C), pages 1095-1109.
    15. Bouchair, Ammar, 2022. "The effect of the altitude on the performance of a solar chimney," Energy, Elsevier, vol. 249(C).
    16. Lindita Bande & Rahma Adan & Kim Young & Raghad Ghazal & Mukesh Jha & Amna Aldarmaki & Atmah Aldhaheri & Asma Alneyadi & Sharina Aldhaheri & Mira Khalifa, 2021. "Outdoor Thermal Comfort Study on a District Level as Part of the Housing Programs in Abu Dhabi and Al Ain, United Arab Emirates," Land, MDPI, vol. 10(3), pages 1-23, March.
    17. AboulNaga, M.M & Abdrabboh, S.N, 2000. "Improving night ventilation into low-rise buildings in hot-arid climates exploring a combined wall–roof solar chimney," Renewable Energy, Elsevier, vol. 19(1), pages 47-54.
    18. Alex Yong Kwang Tan & Nyuk Hien Wong, 2013. "Parameterization Studies of Solar Chimneys in the Tropics," Energies, MDPI, vol. 6(1), pages 1-19, January.
    19. Chi-Ming Lai & Yi-Pin Lin, 2011. "Energy Saving Evaluation of the Ventilated BIPV Walls," Energies, MDPI, vol. 4(6), pages 1-12, June.

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