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Article

Experimental Study on Energy Efficiency of Multi-Functional BIPV Glazed Façade Structure during Heating Season

Laboratory for Sustainable Technologies in Buildings, Faculty of Mechanical Engineering, University of Ljubljana, SI-1000 Ljubljana, Slovenia
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Energies 2020, 13(11), 2772; https://doi.org/10.3390/en13112772
Received: 29 April 2020 / Revised: 19 May 2020 / Accepted: 26 May 2020 / Published: 1 June 2020
(This article belongs to the Special Issue Evaluation of Energy Efficiency and Flexibility in Smart Buildings)
Building integrated photovoltaics (BIPV) is technology that can significantly increase the share of renewable energy in final energy supply and are one of essential technologies for the nearly zero-energy buildings (nZEB), new build and refurbished. In the article (a) an experimental semitransparent BIPV glazed façade structure with 60% of PV cell coverage is shown; (b) energy efficiency indicators were developed based on identified impact parameters using experimental data; and (c) multi-parametric models of electricity generation, preheating of air for space ventilation, and dynamic thermal insulation features that enable prediction of solar energy utilization in different climate conditions are shown. The modeled efficiency of electricity production of BIPV was in the range between 8% and 9.5% at daily solar radiation above 1500 Wh/day, while low impact of outdoor air temperature and ventilation air flow rate on PV cell cooling was noticed. Between 35% and 75% of daily solar radiation can be utilized by preheating the air for space ventilation, and 4.5% to 7.5% of daily solar radiation can be utilized in the form of heat gains through opaque envelope walls. View Full-Text
Keywords: nZEB, BIPV; room ventilation; dynamic thermal insulation; multi-parametric model nZEB, BIPV; room ventilation; dynamic thermal insulation; multi-parametric model
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MDPI and ACS Style

Domjan, S.; Petek, L.; Arkar, C.; Medved, S. Experimental Study on Energy Efficiency of Multi-Functional BIPV Glazed Façade Structure during Heating Season. Energies 2020, 13, 2772. https://doi.org/10.3390/en13112772

AMA Style

Domjan S, Petek L, Arkar C, Medved S. Experimental Study on Energy Efficiency of Multi-Functional BIPV Glazed Façade Structure during Heating Season. Energies. 2020; 13(11):2772. https://doi.org/10.3390/en13112772

Chicago/Turabian Style

Domjan, Suzana, Lenart Petek, Ciril Arkar, and Sašo Medved. 2020. "Experimental Study on Energy Efficiency of Multi-Functional BIPV Glazed Façade Structure during Heating Season" Energies 13, no. 11: 2772. https://doi.org/10.3390/en13112772

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