Analysis of the energy-saving potential for heating of double skin glass-glass façades

Authors

DOI:

https://doi.org/10.17533/udea.redin.20201113

Keywords:

Solar energy, solar heating, solar radiation, air conditioning, bioclimatic architecture

Abstract


The energy flows of the double skin, glass-glass façades have been analysed, establishing a mathematical model to determine the energy savings provided by this construction solution in 10 cities in Spain. It has been found that the two climatological variables that most influence energy savings are outdoor temperature, as it is directly related to the demand for heating, and solar irradiation, as it is the source of energy from which savings are extracted. Energy savings in winter vary between 11.1% and 20.5%, depending on the weather. A linear relationship between the annual average outdoor temperature and the useful energy provided by the double- skin façade has been determined. It was verified that the maximum energy saving occurs when the façade is offset a few degrees to the east from the pure south orientation. It deviates further east, the higher the annual average temperature. A linear relationship has been established between the outside temperature and the azimuth of the façade with which the maximum energy saving occurs. To obtain savings percentages greater than 20%, the ratio between the double-skin façade surface and the total heated surface of the building must be less than 7.

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Author Biographies

Víctor Diez Martínez, Ente Regional de la Energía de Castilla y Leon

Professor,  Energy Saving and Efficiency Department 

 

 

Roberto Getino de la Mano, Ente Regional de la Energía de Castilla y Leon

PhD and Professor , Energy Saving and Efficiency Department 

 

José Luis Falagán Cavero, Universidad de León

Professor and Researcher, Department of Electrical Systems and Automation Engineering 

 

 

David Borge Diez, Universidad de León

Associate Professor, Department of Electrical Engineering and systems and automatic

 

 

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Published

2020-11-24

How to Cite

Diez Martínez, V., Getino de la Mano, R., Falagán Cavero, J. L., & Borge Diez, D. (2020). Analysis of the energy-saving potential for heating of double skin glass-glass façades . Revista Facultad De Ingeniería Universidad De Antioquia, (101), 108–120. https://doi.org/10.17533/udea.redin.20201113