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Open AccessArticle

The Role of Façades in Solar Energy Utilization

1
Department of Construction Materials and Technologies, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111 Budapest, Hungary
2
Építésügyi Minőségellenőrző Innovációs Nonprofit Llc., Dózsa Gy. út 26, 2000 Szentendre, Hungary
*
Author to whom correspondence should be addressed.
Buildings 2020, 10(11), 209; https://doi.org/10.3390/buildings10110209
Received: 14 October 2020 / Revised: 11 November 2020 / Accepted: 17 November 2020 / Published: 19 November 2020
During the summer, the environmental impact of building operations can be reduced by optimizing ventilation and preventing heat from entering the building. Shades are used to create a comfortable temperature state in interiors without operating mechanical equipment or using low-power systems. The most significant factor in reducing energy consumption would be if the spatial delimitation of buildings utilizes solar energy in a passive or active way. At the same time, limiting the energy entering through windows reduces the temperature of interiors and the amount of energy used for cooling; thus, the phenomenon of the urban heat island would be less exacerbated. In the case of existing historical buildings, there are limited possibilities to reduce the energy consumption of the building and to protect the buildings against excessive summer heating, especially in connection with the structural appearance of the doors and windows on the façade. This paper presents the preparation of a large-scale reconstruction project based on a newly developed combined window that can significantly reduce indoor summer overheating. Designing steps of the complex retrofitting of a traditional box-type window are highlighted based on the results of closely connected literature pertaining to thermal, ventilation, shading, and acoustical phenomena. The result is a detailed structural and technological design of the reconstruction for the historical window in a combined way, as the frame, glazing, ventilation, and shading are simultaneously developed and calculated approximately; moreover, active shading is integrated. One aim of this desktop study was to demonstrate that in the case of historical buildings, it is possible and necessary to reduce heat losses during the heating season and to minimize the risk of summer overheating, and to show that the surface of the façade could be converted into an energy producer. View Full-Text
Keywords: energy-conscious renovation; box-type window; passive and active energy use; historic window reconstruction; mitigating the impact of the urban heat island energy-conscious renovation; box-type window; passive and active energy use; historic window reconstruction; mitigating the impact of the urban heat island
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MDPI and ACS Style

Horn, V.V.; Dudás, A.; Terjék, A. The Role of Façades in Solar Energy Utilization. Buildings 2020, 10, 209. https://doi.org/10.3390/buildings10110209

AMA Style

Horn VV, Dudás A, Terjék A. The Role of Façades in Solar Energy Utilization. Buildings. 2020; 10(11):209. https://doi.org/10.3390/buildings10110209

Chicago/Turabian Style

Horn, Valéria V.; Dudás, Annamária; Terjék, Anita. 2020. "The Role of Façades in Solar Energy Utilization" Buildings 10, no. 11: 209. https://doi.org/10.3390/buildings10110209

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