A simulation-based model for courtyard housing design based on adaptive thermal comfort

Abstract Courtyards are anecdotally known for their distinctive bioclimatic efficiency, particularly in hot-arid climates. However, this building typology is not always preferred in modern constructions. The aim of this study is to perform a parametric study to enhance design efficiency and provide simple-to-use rules for designing courtyard houses in subtropical desert climates. Numerical models were developed using the Grasshopper tool together with the environmental plugins Ladybug and Honeybee in order to enhance the design efficiency of courtyards. The paper investigates the impact on the thermal comfort of the main design variables, including the orientation, geometry, materials, window sizes, and courtyard eccentricity. In particular, the parametric study compares over 8600 possible alternatives. Results show how an enhanced design can significantly increase the thermal comfort in courtyard houses in a hot arid climate. The automatically generated solutions are also compared with design practices and literature rules-of-thumb of successful courtyards. Finally, a set of equations is provided to support the design of courtyard houses in hot and dry climates.

[2]  Bassam Abu-Hijleh,et al.  Courtyard housing in midrise buildings: An environmental assessment in hot-arid climate , 2012 .

[3]  Gail Brager,et al.  Developing an adaptive model of thermal comfort and preference , 1998 .

[4]  U. Berardi.  Building Energy Consumption in US, EU, and BRIC Countries☆ , 2015 .

[5]  Sigalit Berkovic,et al.  Study of thermal comfort in courtyards in a hot arid climate , 2012 .

[6]  Tetsu Kubota,et al.  Comparative assessment of vernacular passive cooling techniques for improving indoor thermal comfort of modern terraced houses in hot–humid climate of Malaysia , 2015 .

[7]  Ali GhaffarianHoseini,et al.  What can we learn from Malay vernacular houses , 2014 .

[8]  Sabarinah Sh Ahmad,et al.  Courtyard Design Variants and Microclimate Performance , 2013 .

[9]  Mohamed B. Gadi,et al.  Mathematical model for calculating the shaded and sunlit areas in a circular courtyard geometry , 2005 .

[10]  H. Fathy,et al.  Natural energy and vernacular architecture : principles and examples with reference to hot arid climates , 1986 .

[11]  Masoud Valinejad Shoubi,et al.  Integrated parametric design of adaptive facades for user's visual comfort , 2019, Automation in Construction.

[12]  Gabriele Lobaccaro,et al.  Parametric design to minimize the embodied GHG emissions in a ZEB , 2018 .

[13]  Mehdi Shokouhian,et al.  The impact of courtyard design variants on shading performance in hot- arid climates of Iran , 2017 .

[14]  Hicham Mastouri,et al.  Thermal performance assessment of passive techniques integrated into a residential building in semi-arid climate , 2017 .

[15]  U. Berardi,et al.  Thermal performance characteristics of unshaded courtyards in hot and humid climates , 2015 .

[16]  Abdelsalam Aldawoud,et al.  Thermal performance of courtyard buildings , 2008 .

[17]  Umberto Berardi,et al.  Daylighting in an atrium-type high performance house , 2014 .

[18]  Mohamed B. Gadi,et al.  Effect of courtyard proportions on solar heat gain and energy requirement in the temperate climate of Rome , 2006 .