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Improving the Energy Performance of Public Buildings Equipped with Individual Gas Boilers Due to Thermal Retrofitting

Author

Listed:
  • Anna Życzyńska

    (Faculty of Civil Engineering and Architecture, Lublin University of Technology, 40 Nadbystrzycka Str., 20-618 Lublin, Poland)

  • Dariusz Majerek

    (Faculty of Fundamentals of Technology, Lublin University of Technology, 38 Nadbystrzycka Str., 20-618 Lublin, Poland)

  • Zbigniew Suchorab

    (Faculty of Environmental Engineering, Lublin University of Technology, 40B Nadbystrzycka Str., 20-618 Lublin, Poland)

  • Agnieszka Żelazna

    (Faculty of Environmental Engineering, Lublin University of Technology, 40B Nadbystrzycka Str., 20-618 Lublin, Poland)

  • Václav Kočí

    (Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
    Institute of Technology and Business in České Budějovice, Okružní 517/10, 370 01 České Budějovice, Czech Republic)

  • Robert Černý

    (Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6, Czech Republic)

Abstract

The article assesses an impact of thermal retrofitting on an improvement of the energy quality of public buildings in terms of their heating. The analysis covered a group of 14 buildings, including schools, kindergartens or offices, while energy audits were carried out for 12 of them. The indications of individual gas meters were the source of actual data for the assessment of changes in energy consumption indexes in operating conditions. The analysis showed a clear improvement in the energy quality of buildings; however, the actual effects were much lower than forecasted. The average forecasted decrease in energy consumption was supposed to be 64.3%, but the measured data showed only 37.1%. The investigation confirmed that the most complex refurbishing provided the most satisfactory decrease in energy consumption (51.4% of real decrease in energy consumption), while objects with partial thermal refurbishing reached an efficiency of only 21.8%. It was stated that in operating conditions, special attention should be paid to the manner of energy use, since different indicators of energy consumption can be obtained with the same parameters of building’s balance cover. The results obtained can be further utilized in thermal-refurbishment implementation procedures. Follow-up investigations on the impact of selected parameters on energy consumption are planned.

Suggested Citation

  • Anna Życzyńska & Dariusz Majerek & Zbigniew Suchorab & Agnieszka Żelazna & Václav Kočí & Robert Černý, 2021. "Improving the Energy Performance of Public Buildings Equipped with Individual Gas Boilers Due to Thermal Retrofitting," Energies, MDPI, vol. 14(6), pages 1-19, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1565-:d:515556
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    References listed on IDEAS

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    1. Cesare Biserni & Paolo Valdiserri & Dario D’Orazio & Massimo Garai, 2018. "Energy Retrofitting Strategies and Economic Assessments: The Case Study of a Residential Complex Using Utility Bills," Energies, MDPI, vol. 11(8), pages 1-15, August.
    2. Francesco Mancini & Benedetto Nastasi, 2019. "Energy Retrofitting Effects on the Energy Flexibility of Dwellings," Energies, MDPI, vol. 12(14), pages 1-19, July.
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    6. Maria Rosa Trovato & Francesco Nocera & Salvatore Giuffrida, 2020. "Life-Cycle Assessment and Monetary Measurements for the Carbon Footprint Reduction of Public Buildings," Sustainability, MDPI, vol. 12(8), pages 1-25, April.
    7. Kylili, Angeliki & Fokaides, Paris A. & Lopez Jimenez, Petra Amparo, 2016. "Key Performance Indicators (KPIs) approach in buildings renovation for the sustainability of the built environment: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 906-915.
    8. Anna Życzyńska & Zbigniew Suchorab & Dariusz Majerek, 2020. "Influence of Thermal Retrofitting on Annual Energy Demand for Heating in Multi-Family Buildings," Energies, MDPI, vol. 13(18), pages 1-19, September.
    9. Ricardo Ramírez-Villegas & Ola Eriksson & Thomas Olofsson, 2019. "Life Cycle Assessment of Building Renovation Measures–Trade-off between Building Materials and Energy," Energies, MDPI, vol. 12(3), pages 1-15, January.
    10. Fan, Yuling & Xia, Xiaohua, 2017. "A multi-objective optimization model for energy-efficiency building envelope retrofitting plan with rooftop PV system installation and maintenance," Applied Energy, Elsevier, vol. 189(C), pages 327-335.
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    Cited by:

    1. Piotr Michalak & Krzysztof Szczotka & Jakub Szymiczek, 2023. "Audit-Based Energy Performance Analysis of Multifamily Buildings in South-East Poland," Energies, MDPI, vol. 16(12), pages 1-21, June.
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