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Sustainability 2018, 10(11), 3950; https://doi.org/10.3390/su10113950

Performance-Based Evaluation of Courtyard Design in China’s Cold-Winter Hot-Summer Climate Regions

1
School of Architecture, Southeast University, 2 Sipailou, Nanjing 210018, China
2
Tus-Design Group Co., Ltd., 9 Xinghai Street, Suzhou Industrial Park, Suzhou 215028, China
3
Building Technology and Urban Systems Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
*
Authors to whom correspondence should be addressed.
Received: 10 October 2018 / Revised: 15 October 2018 / Accepted: 29 October 2018 / Published: 30 October 2018
(This article belongs to the Collection Sustainable Built Environment)
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Abstract

A courtyard is a traditional and popular construction feature found in China’s urban buildings. This case study evaluates the performance of the traditional courtyard design of the Jiangnan Museum, located in Jiangsu Province. In the evaluation, the spatial layout of courtyards is adjusted, the aspect ratio is changed, and an ecological buffer space is created. To model and evaluate the performance of the courtyard design, this study applied the Computational fluid dynamics (CFD) software, Parabolic Hyperbolic Or Elliptic Numerical Integration Code Series (PHOENICS), for wind environment simulation, and the EnergyPlus-based software, DesignBuilder, for energy simulation. Results show that a good combination of courtyard layout and aspect ratio can improve the use of natural ventilation by increasing free cooling during hot summers and reducing cold wind in winters. The results also show that ecological buffer areas of a courtyard can reduce cooling loads in summer by approximately 19.6% and heating loads in winter by approximately 22.3%. The study provides insights into the optimal design of a courtyard to maximize its benefit in regulating the microclimate during both winter and summer. View Full-Text
Keywords: courtyard design; ecological effect; layout; aspect ratio; ecological buffer area courtyard design; ecological effect; layout; aspect ratio; ecological buffer area
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Xu, X.; Luo, F.; Wang, W.; Hong, T.; Fu, X. Performance-Based Evaluation of Courtyard Design in China’s Cold-Winter Hot-Summer Climate Regions. Sustainability 2018, 10, 3950.

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