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Photovoltaic Roof Tiles: The Influence of Heat Recovery on Overall Performance

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  • Jan Wajs

    (Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland)

  • Aleksandra Golabek

    (Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland)

  • Roksana Bochniak

    (Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland)

Abstract

A photovoltaic (PV) roof tile serves both as a roofing material and as an electricity-producing surface. The main aim of the present study was to increase the overall system efficiency of PV tiles by using heat recovery. The chosen strategy was two-fold: determine the operational efficiency of PV tiles and optimize construction to increase the cooling effect when using air as the working medium. A detailed experimental study was undertaken to determine these effects. The results indicated that a combined electrical and thermal efficiency of 24% could be reached. This is promising and proves the potential for air to be the working medium in such systems. Moreover, this shows a direction for future system optimization.

Suggested Citation

  • Jan Wajs & Aleksandra Golabek & Roksana Bochniak, 2019. "Photovoltaic Roof Tiles: The Influence of Heat Recovery on Overall Performance," Energies, MDPI, vol. 12(21), pages 1-12, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:21:p:4097-:d:280713
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    References listed on IDEAS

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    Cited by:

    1. Mariusz T. Sarniak, 2021. "The Efficiency of Obtaining Electricity and Heat from the Photovoltaic Module under Different Irradiance Conditions," Energies, MDPI, vol. 14(24), pages 1-13, December.
    2. Natalia Iwaszczuk & Mariusz Trela, 2021. "Analysis of the Impact of the Assumed Moment of Meeting Total Energy Demand on the Profitability of Photovoltaic Installations for Households in Poland," Energies, MDPI, vol. 14(6), pages 1-15, March.
    3. Wajs, Jan & Golabek, Aleksandra & Bochniak, Roksana & Mikielewicz, Dariusz, 2020. "Air-cooled photovoltaic roof tile as an example of the BIPVT system – An experimental study on the energy and exergy performance," Energy, Elsevier, vol. 197(C).

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