The influence of glazing over the parameters and energy rating according to the building orientation and the façade openings percentages.
DOI:
https://doi.org/10.20868/ade.2016.3196Keywords:
Valor G, factor U, porcentaje de apertura, orientación de la fachada, clasificación energética, porcentajes de ahorro, G-value, U-factor, opening percentage, façade orientation, energy rating, saving percentages.Abstract
It is well known the significant impact of glazing over the building energy demand making it the thermal envelope’s most important part. A study of the influence of thermal transmittance (U-factor) and solar factor (g-value) of three different glazing types over the parameters and energy rating are shown in this paper. A single-family dwelling located in Seville city, Spain, has been analyzed to which a set of hypotheses, six opening percentages ranging from 10 to 60% considered by the Spanish Building Code on its simplified option, and different combinations, four orientations matching the cardinal directions, has been applied. For the climate zone and glazing types considered, the g-value parameter has a higher incidence on the global demand and energy rating than thermal transmittance. It is established which orientation greater energy savings can be achieved independently for heating, cooling demand and energy rating. Also the ideal values for both parameters that should be considered in each orientation in order to improve the energy rating. Therefore, when selecting a type of glazing it would be important to consider the best “U” and “g” parameter values together for each orientation in order to get the lowest energy demand possible.
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References
CE3x V-1.1. 2013. Simplified Energy Rating tool for existing buildings.
CTE, Technical Building Code DB-HE1. RD 314/2006, March 17th.
Gasparella, A., Pernigotto, G., Cappelletti, F., Romagnomi, P. and Baggio, P. (2011). Analysis and modelling of window and glazing systems energy performance for a well-insulated residential building. Energy and Buildings, vol. 43, pp. 1030-1037. doi: http://dx.doi.org/10.1016/j.enbuild.2010.12.032
Nielsen, T. R., Duer K. and Svendsen S. (2000). Energy performance of glazing and Windows. Solar Energy, vol. 69, 137-143. doi: http://dx.doi.org/10.1016/S0038-092X(01)00062-7
Persson, M.L., Roos, A, and Wall, M (2006). Influence of window size on the energy balance of low energy houses. Energy and Buildings, vol. 38, pp. 181-188. doi: http://dx.doi.org/10.1016/j.enbuild.2005.05.006
Urbikain, M.K. and Sala. J.M. (2009). Analysis of different models to estimate energy savings related to windows in residential buildings. Energy and Buildings, vol. 41, pp. 687-695. doi: http://dx.doi.org/10.1016/j.enbuild.2009.01.007
Yoo, S., Jeong, H., Ahn B.L, Han, H., Seo, D. Lee, J., and Jan, C.Y. (2013). Thermal transmitance of window systems and effects on building heating energy use and energy efficiency ratings in South Korea, Energy and Buildings, vol. 67, pp. 236-244. doi: http://dx.doi.org/10.1016/j.enbuild.2013.08.005
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