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Impact of external shading strategy on energy performance of multi-story hotel building in hot-humid climate

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  • Alhuwayil, Waleed Khalid
  • Abdul Mujeebu, Muhammad
  • Algarny, Ali Mohammed M.

Abstract

Passive design strategies are the most feasible and economic ways of energy and thermal management in buildings, if appropriately incorporated at the conceptual design stage. Though many works have been reported on the application of external shading options, a shading strategy that incorporates the features of both external shading devices and self-shading envelope, is yet to be explored. The present study was focused on the energy saving potential and economics of incorporating external shading devices with self-shading envelope for a multi-story hotel building in hot-humid climate of Saudi Arabia. The modeling and the energy simulations were performed by DesignBuilder (Version 4.5.0.148). According to the base-design geometry of the building, appropriate shading options were proposed for the north, south, north-east, north-west, south-east and south-west facades. External walls and roof were insulated with fiber glass and windows were double-glazed (DG), in compliance with the Saudi Building Code - 601. The shading strategy was chosen in such a way that it forms part of a self-shading envelope while improving energy performance and contributing additional space at very affordable cost. The results show that the proposed shading could save the annual energy consumption of the building by 20.5% compared to the base case. The payback period for the additional investment required for incorporating the passive shading strategy is estimated to be 2 years. Study of another option by improving the baseline insulation and glazing (with polyurethane in walls and roof and triple low-e glazed shows, without shading) shows that it saves only 5% of annual energy consumption, and the payback period is unacceptably long (84 years).

Suggested Citation

  • Alhuwayil, Waleed Khalid & Abdul Mujeebu, Muhammad & Algarny, Ali Mohammed M., 2019. "Impact of external shading strategy on energy performance of multi-story hotel building in hot-humid climate," Energy, Elsevier, vol. 169(C), pages 1166-1174.
    • Handle: RePEc:eee:energy:v:169:y:2019:i:c:p:1166-1174
    DOI: 10.1016/j.energy.2018.12.069
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    References listed on IDEAS

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    Cited by:

    1. Elaouzy, Y. & El Fadar, A., 2022. "Energy, economic and environmental benefits of integrating passive design strategies into buildings: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    2. Xie, Xing & Chen, Xing-ni & Xu, Bin & Pei, Gang, 2022. "Investigation of occupied/unoccupied period on thermal comfort in Guangzhou: Challenges and opportunities of public buildings with high window-wall ratio," Energy, Elsevier, vol. 244(PB).
    3. Islam, Nazrul & Irshad, Kashif & Zahir, Md Hasan & Islam, Saiful, 2021. "Numerical and experimental study on the performance of a Photovoltaic Trombe wall system with Venetian blinds," Energy, Elsevier, vol. 218(C).
    4. Islam Boukhelkhal & Fatiha Bourbia, 2021. "Experimental Study on the Thermal Behavior of Exterior Coating Textures of Building in Hot and Arid Climates," Sustainability, MDPI, vol. 13(8), pages 1-16, April.
    5. Gupta, V. & Deb, C., 2023. "Envelope design for low-energy buildings in the tropics: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 186(C).
    6. Christopher Ileanwa Abdul & Roshida Binti Abdul Majid & David B. Dalumo & Adejoh Andrew Ekule & Usman Abdulazeez Adeiza & Isah Obenege Suleiman & Idachaba Kareen Mamenoma, 2024. "An Investigation into the Impact of Orientation on the Thermal Performance and Occupant’s Productivity in Curtain Wall High-Rise Office Working Spaces During the Dry Season: A Case Study of Abuja, N," International Journal of Research and Innovation in Social Science, International Journal of Research and Innovation in Social Science (IJRISS), vol. 8(9), pages 208-224, September.
    7. Taesub Lim & Woong Seog Yim & Daeung Danny Kim, 2020. "Evaluation of Daylight and Cooling Performance of Shading Devices in Residential Buildings in South Korea," Energies, MDPI, vol. 13(18), pages 1-14, September.

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