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Numerical study of thermal characteristics of double skin facade system with middle shade

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Abstract

Architectural shade is an effective method for improving building energy efficiency. A new shade combined with the double skin façade (DSF) system, called middle shade (MS), was introduced and developed for buildings. In this paper, a 3D dynamic simulation was conducted to analyze the influence of MS combined with DSF on the indoor thermal characteristics. The research on MS for DSF involves the temperature, the ventilation rate, the velocity distribution of the air flow duct, and the indoor temperature. The results show that the angle and position of the shade in the three seasons are different, and different conditions effectively enhance the indoor thermal characteristics. In summer, the appearance of MS in DSF makes the indoor temperature significantly lower. The indoor temperature is obviously lower than that of the air flow duct, and the temperature of the air flow duct is less affected by MS. The influence of the position of blinds on indoor temperature and ventilation rate is greater than the influence of the angle of blinds. According to the climate characteristics of winter and transition season, in winter, early spring, and late autumn, the indoor temperature decreases with the increase of the position of blinds at daytime, but the opposite is true at night. The results found in this paper can provide reference for the design and use of MS combined with DSF in hot summer and cold winter zone.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 51408184), Tianjin Natural Science Foundation (15JCQNJC07800) and Excellent Youth Foundation of Hebei Educational Committee (YQ2014005).

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Correspondence to Xiangfei Kong.

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Liu, S., Kong, X., Yang, H. et al. Numerical study of thermal characteristics of double skin facade system with middle shade. Front. Energy 15, 222–234 (2021). https://doi.org/10.1007/s11708-017-0480-8

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  • DOI: https://doi.org/10.1007/s11708-017-0480-8

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