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The Energy Retrofit Impact in Public Buildings: A Numerical Cross-Check Supported by Real Consumption Data

Author

Listed:
  • Vincenzo Ballerini

    (Department of Industrial Engineering DIN, Alma Mater Studiorum—University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Bernadetta Lubowicka

    (Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland)

  • Paolo Valdiserri

    (Department of Industrial Engineering DIN, Alma Mater Studiorum—University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Dorota Anna Krawczyk

    (Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland)

  • Beata Sadowska

    (Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland)

  • Maciej Kłopotowski

    (Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland)

  • Eugenia Rossi di Schio

    (Department of Industrial Engineering DIN, Alma Mater Studiorum—University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

Abstract

In the framework of reducing carbon dioxide emissions and energy consumption, the energy retrofit of existing buildings plays a significant role and is often supported by numerical analyses of the planned activities and expected results. This study analyses a public building (a kindergarten) located in Bialystok (Poland) and aims to determine the building’s energy performance prior to and after thermal modernization. The building was examined by employing two different software packages, Audytor OZC 7.0 Pro and Trnsys 18. The thermal efficiency improvement applied to the renovated building in Bialystok was also analyzed by virtually locating the building in Bologna (Italy). Moreover, a comfort analysis focused on the classrooms of the kindergarten was carried out employing Trnsys. As a novelty, in the analysis, particular attention is paid to ventilation losses and to the influence of envelope elements properties on the building energy demand. The results arising from analyses were compared to real consumption data for the heating season. The results obtained from the two software programs display excellent agreement, and they also match the real consumption data if the heating demand is considered, while some differences arise when the cooling demand is considered.

Suggested Citation

  • Vincenzo Ballerini & Bernadetta Lubowicka & Paolo Valdiserri & Dorota Anna Krawczyk & Beata Sadowska & Maciej Kłopotowski & Eugenia Rossi di Schio, 2023. "The Energy Retrofit Impact in Public Buildings: A Numerical Cross-Check Supported by Real Consumption Data," Energies, MDPI, vol. 16(23), pages 1-21, November.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:23:p:7748-:d:1286920
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    References listed on IDEAS

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    1. Pisello, Anna Laura & Goretti, Michele & Cotana, Franco, 2012. "A method for assessing buildings’ energy efficiency by dynamic simulation and experimental activity," Applied Energy, Elsevier, vol. 97(C), pages 419-429.
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    1. Minghui Ma & Oguzhan Pektezel & Vincenzo Ballerini & Paolo Valdiserri & Eugenia Rossi di Schio, 2024. "Performance Predictions of Solar-Assisted Heat Pumps: Methodological Approach and Comparison Between Various Artificial Intelligence Methods," Energies, MDPI, vol. 17(22), pages 1-16, November.

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