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Dynamic parametric models for the holistic evaluation of semi-transparent photovoltaic/thermal façade with latent storage insertsArkar, Ciril ...High energy efficiency, energy autonomy, and improved living conditions are basic requirements of sustainable buildings. Advanced building envelope structures can provide these requirements. In the ... present paper, multipurpose façade structure designed as semi-transparent modular building-integrated photovoltaic façade with a forced ventilated cavity and enhanced heat storage capacity, using encapsulated phase change inserts installed on inner glass pane of photovoltaic module and on building envelope, is evaluated. The design of the façade structure, including simultaneous optimization of photovoltaic cell-packing factor, phase change material inserts properties, and heat transfer by convection in air gap, was based on transient modeling. A 60% photovoltaic cell-packing factor enables the highest overall energy efficiency, while phase change material inserts on the inner glass pane of photovoltaic module have no impact on diurnal photovoltaic cell efficiency. However, a phase change material layer installed on the envelope decreases the diurnal heat losses by half at solar radiation of 2200 Wh/m2 day. The energy performance of an optimized modular structure was determined via in-situ experiments; the data were used for developing dynamic approximation models of energy efficiency indicators. It was found that multiple regression models with interactions and past values can predict dynamic responses with sufficient accuracy. Depending on the heating season%s climate conditions, the developed semi-transparent modular building-integrated photovoltaic façade decreases the energy needs 40% to 55% in comparison to the reference façade with solar energy utilization efficiency in the range between 44% and 63%. This proves that such structures can contribute to fulfilling of requirements of sustainable buildings.Source: Applied energy. - ISSN 0306-2619 (Vol. 280, Dec. 2020, str. 1-16)Type of material - article, component partPublish date - 2020Language - englishCOBISS.SI-ID - 34825731
Author
Arkar, Ciril |
Žižak, Tej |
Domjan, Suzana |
Medved, Sašo
Topics
in-situ experiments |
building-integrated photovoltaics façade structures |
PCM solar storage |
dynamic thermal insulation |
multi-parametric regression models |
in-situ eksperimenti |
BIPV |
PCM solarni hranilnik |
dinamična toplotna izolacija |
več-parametrični regresijski modeli
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Database name | Field | Year |
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Arkar, Ciril | 11809 |
Žižak, Tej | 55031 |
Domjan, Suzana | 30588 |
Medved, Sašo | 03408 |
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