Cooling Load Reduction in Courtyard Houses: Examining the Role of Courtyard Configuration in a Hot, Arid Climate | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 6, Volume 52, Issue 6, November 2024, Page 728-738 PDF (589.82 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2024.299960.1346 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Essam Almahmoud   1; Lobna Elgheriani 2; Abdulbasit Almhafdy3
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| 1Department of Architecture, College of Architecture and Planning, Qassim University, Buraydah, 52571, Saudi Arabia. | ||||
| 2Institut für Gebäude und Energie, Graz University of Technology, Graz, Austria | ||||
| 3Department of Architecture, College of Architecture and Planning, Qassim University, Buraydah, 52571, Saudi Arabia | ||||
| Abstract | ||||
| The hot, arid climate of the Qassim region in Saudi Arabia poses significant challenges for energy-efficient building design, especially in terms of passive cooling strategies. Courtyards, a traditional architectural element, offer potential for improving thermal performance in such climates. However, the impact of courtyard plan aspect ratio and orientation on energy consumption in semi-detached houses remains understudied. This research addresses this gap by investigating the thermal behavior of U-shaped courtyards in arid climates through IES simulations. The study aims to assess the influence of different courtyard shapes (square and rectangular) and orientations (north, east, west, and south) on cooling loads in adjacent spaces. Two semi-detached house configurations, each featuring either a square or rectangular U-shaped courtyard, were modeled and analyzed. The findings indicate that square courtyards perform better than rectangular, reducing cooling loads during summer months. South-facing courtyards exhibited the highest energy consumption due to prolonged solar exposure, while west-facing courtyards had the lowest cooling loads. Furthermore, the results show that the internal zoning of rooms adjacent to the courtyard should be strategically planned based on thermal performance, as specific zones experienced varying cooling demands depending on courtyard shape and orientation. In conclusion, optimizing courtyard design, including plan aspect ratio and orientation, can significantly enhance energy efficiency and thermal comfort in arid climates. These insights provide architects with practical guidelines for designing more sustainable and energy-efficient courtyard houses. Future research could explore the integration of social and environmental aspects, as well as the impact of natural light on adjacent spaces | ||||
| Keywords | ||||
| courtyard; energy efficiency; orientation; plan aspect ratio; simulation | ||||
| References | ||||
|
[1] A. Almhafdy and A. M. Alsehail, “The effect of window design factors on the cooling load in hospitals wards,” Smart and Sustainable Built Environment, vol. ahead-of-print, no. ahead-of-print, 2023, doi: 10.1108/SASBE-07-2023-0195/FULL/XML.
[2] M. Alwetaishi, “Impact of glazing to wall ratio in various climatic regions: A case study,” Journal of King Saud University - Engineering Sciences, vol. 31, no. 1, pp. 6–18, Jan. 2019, doi: 10.1016/j.jksues.2017.03.001.
[3] A. Almunyifi and A. Almhafdy, “Evaluating the Impact of Natural Ventilation on Indoor Thermal Conditions in Hot and Arid Climate School Buildings,” Civil Engineering and Architecture, vol. 11, no. 3, pp. 1424–1438, May 2023, doi: 10.13189/CEA.2023.110325.
[4] F. Soflaei, M. Shokouhian, A. Tabadkani, H. Moslehi, and U. Berardi, “A simulation-based model for courtyard housing design based on adaptive thermal comfort,” Journal of Building Engineering, vol. 31, p. 101335, Sep. 2020, doi: 10.1016/j.jobe.2020.101335.
[5] Y. Ibrahim, T. Kershaw, P. Shepherd, and H. Elkady, “Multi-objective optimisation of urban courtyard blocks in hot arid zones,” Solar Energy, vol. 240, pp. 104–120, Jul. 2022, doi: 10.1016/J.SOLENER.2022.05.024.
[6] M. Al Surf, C. Susilawati, and B. Trigunarsyah, “Analyzing the literature for the link between the conservative Islamic culture of Saudi Arabia and the design of sustainable housing,” Proceedings of the 2nd International Conference on Socio-Political and Technological Dimensions of Climate Change, 2012.
[7] T. A. Saeed, “Studies on the geometrical properties of courtyard house form considering natural ventilation in hot-dry regions,” Illinois Institute of Technology, 2007.
[8] S. Berkovic, A. Yezioro, and A. Bitan, “Study of thermal comfort in courtyards in a hot arid climate,” SOLAR ENERGY, vol. 86, no. 5, pp. 1173–1186, May 2012, doi: 10.1016/j.solener.2012.01.010.
[9] J. Han et al., “Research on the influence of courtyard space layout on building microclimate and its optimal design,” Energy Build, vol. 289, p. 113035, Jun. 2023, doi: 10.1016/J.ENBUILD.2023.113035.
[10] V. P. López-Cabeza, C. Rivera-Gómez, J. Roa-Fernández, M. Hernandez-Valencia, and R. Herrera-Limones, “Effect of thermal inertia and natural ventilation on user comfort in courtyards under warm summer conditions,” Build Environ, vol. 228, p. 109812, Jan. 2023, doi: 10.1016/J.BUILDENV.2022.109812.
[11] M. Li, Y. Jin, and J. Guo, “Dynamic characteristics and adaptive design methods of enclosed courtyard: A case study of a single-story courtyard dwelling in China,” Build Environ, vol. 223, p. 109445, Sep. 2022, doi: 10.1016/J.BUILDENV.2022.109445.
[12] A. Tabadkani, S. Aghasizadeh, S. Banihashemi, and A. Hajirasouli, “Courtyard design impact on indoor thermal comfort and utility costs for residential households: Comparative analysis and deep-learning predictive model,” Frontiers of Architectural Research, vol. 11, no. 5, pp. 963–980, Oct. 2022, doi: 10.1016/J.FOAR.2022.02.006.
[13] E. Yasa and V. Ok, “Evaluation of the effects of courtyard building shapes on solar heat gains and energy efficiency according to different climatic regions,” Energy Build, vol. 73, pp. 192–199, Apr. 2014, doi: 10.1016/j.enbuild.2013.12.042.
[14] J. Zhu et al., “A review of the influence of courtyard geometry and orientation on microclimate,” Build Environ, vol. 236, p. 110269, May 2023, doi: 10.1016/J.BUILDENV.2023.110269.
[15] F. Soflaei, M. Shokouhian, H. Abraveshdar, and A. Alipour, “The impact of courtyard design variants on shading performance in hot- arid climates of Iran,” Energy Build, vol. 143, pp. 71–83, 2017, doi: 10.1016/j.enbuild.2017.03.027.
[16] A. M. Hassan and H. Lee, “A theoretical approach to the design of sustainable dwellings in hot dry zones: A Toshka case study,” Tunnelling and Underground Space Technology, vol. 40, pp. 251–262, Feb. 2014, doi: 10.1016/J.TUST.2013.10.017.
[17] J. Rodríguez-Algeciras, A. Tablada, M. Chaos-Yeras, G. De la Paz, and A. Matzarakis, “Influence of aspect ratio and orientation on large courtyard thermal conditions in the historical centre of Camagüey-Cuba,” Renew Energy, vol. 125, pp. 840–856, Sep. 2018, doi: 10.1016/j.renene.2018.01.082.
[18] J. Reynolds, Courtyards: aesthetic, social, and thermal delight. John Wiley & Sons, 2002.
[19] N. Nasrollahi, M. Hatami, S. R. Khastar, and M. Taleghani, “Numerical evaluation of thermal comfort in traditional courtyards to develop new microclimate design in a hot and dry climate,” Sustain Cities Soc, vol. 35, pp. 449–467, Nov. 2017, doi: 10.1016/j.scs.2017.08.017.
[20] A. Bagneid, “The creation of a courtyard microclimate thermal model for the analysis of courtyard houses,” Texas: Texas AM University, 2006.
[21] S. Berkovic, A. Yezioro, and A. Bitan, “Study of thermal comfort in courtyards in a hot arid climate,” Solar Energy, vol. 86, no. 5, pp. 1173–1186, May 2012, doi: 10.1016/j.solener.2012.01.010.
[22] I. A. Meir, D. Pearlmutter, and Y. Etzion, “On the microclimatic behavior of two semi-enclosed attached courtyards in a hot dry region,” Build Environ, vol. 30, no. 4, pp. 563–572, Oct. 1995, doi: 10.1016/0360-1323(95)00018-2.
[23] F. Soflaei, M. Shokouhian, and A. Soflaei, “Traditional courtyard houses as a model for sustainable design: A case study on BWhs mesoclimate of Iran,” Frontiers of Architectural Research, vol. 6, no. 3, pp. 329–345, Sep. 2017, doi: 10.1016/J.FOAR.2017.04.004.
[24] R. H. Haseh, M. Khakzand, and M. Ojaghlou, “Optimal Thermal Characteristics of the Courtyard in the Hot and Arid Climate of Isfahan,” Buildings 2018, Vol. 8, Page 166, vol. 8, no. 12, p. 166, Nov. 2018, doi: 10.3390/BUILDINGS8120166.
[25] A. Almhafdy, N. Ibrahim, and S. Sh Ahmad, “Impacts of Courtyard Geometrical Configurations on Energy Performance of Buildings,” Environment-Behaviour Proceedings Journal, vol. 4, no. 10, p. 29, Mar. 2019, doi: 10.21834/e-bpj.v4i10.1637. | ||||
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