Set-up and Calibration by Experimental Data of a Numerical Model for the Estimation of Solar Factor and Ug-value of Building Integrated Photovoltaic Systems. (November 2015)

• Record Type: Journal Article
• Authors: Mazzali, U.; Ruggeri, P.; Zinzi, M.; Peron, F.; Romagnoni, P.; Daneo, A.
• Is Part Of: Energy procedia. Volume 78(2015)
• Page Start: 2202
• Page End: 2207
• Publication Date: 2015-11
• Subjects: BIPV -- Glazing systems -- Solar factor -- Ug-value -- Energy modeling.; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2015.11.319
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: The acronym BIPV (Building Integrated Photovoltaics) refers to the installation of photovoltaic systems which, in addition to convert solar energy into electrical energy, have a high level of architectonical integration with the built environment, becoming a real architectural cladding to be installed over the buildings in place of traditional envelope systems. Many typologies of BIPV have been developed, however their thermal characteristics such as g and Ug-value are not well evaluated and require more detailed analyses considering that they could replace large extension of traditional building envelope. A first approach to address this problem is proposed in this work. A mathematical model based on a finite differences scheme for the estimation of the thermal parameters g and Ug-value has been developed and tuned using experimental value measured on sample BIPV with a Hot Plate and a Solar Calorimeter. The results of the model show that the introduction of solar cells in a laminated glass or in a double glass leads to a reduction of energy parameters modifying winter and summer energy balance of the building system.