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Impact of the Degree Days of the Heating Period on Economically and Ecologically Optimal Thermal Insulation Thickness

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  • Robert Dylewski

    (Institute of Mathematics, Faculty of Mathematics, Computer Science and Econometrics, University of Zielona Góra, ul. Licealna 9, 65-417 Zielona Góra, Poland)

  • Janusz Adamczyk

    (Institute of Management and Quality, Faculty of Economics and Management, University of Zielona Góra, ul. Licealna 9, 65-417 Zielona Góra, Poland)

Abstract

The article proposes methods for determining the optimal thermal insulation thickness for economic and ecological reasons, depending on the number of degree days of the heating period. Life cycle assessment was used for the ecological analysis. Analyses were performed for selected variants typical of Polish conditions. The optimal thermal insulation thickness as well as the amount of economic and ecological benefits depends very much on the condition of the building without thermal insulation, but also on the heat source used and the thermal insulation material to be used. For each variant, the optimal thermal insulation thickness for ecological reasons is much greater than the optimal for economic reasons. Taking into consideration the climatic zone and the associated number of degree days of the heating period, the colder the zone, the greater the optimal insulation thickness, as well as economic and ecological benefits.

Suggested Citation

  • Robert Dylewski & Janusz Adamczyk, 2020. "Impact of the Degree Days of the Heating Period on Economically and Ecologically Optimal Thermal Insulation Thickness," Energies, MDPI, vol. 14(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:97-:d:468811
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    References listed on IDEAS

    as
    1. Robert Dylewski, 2019. "Optimal Thermal Insulation Thicknesses of External Walls Based on Economic and Ecological Heating Cost," Energies, MDPI, vol. 12(18), pages 1-14, September.
    2. Hasan, Afif, 1999. "Optimizing insulation thickness for buildings using life cycle cost," Applied Energy, Elsevier, vol. 63(2), pages 115-124, June.
    3. Adamczyk, Janusz & Dylewski, Robert, 2017. "Changes in heat transfer coefficients in Poland and their impact on energy demand - an environmental and economic assessment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 530-538.
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    Cited by:

    1. Dariusz Bajno & Agnieszka Grzybowska & Łukasz Bednarz, 2021. "Old and Modern Wooden Buildings in the Context of Sustainable Development," Energies, MDPI, vol. 14(18), pages 1-31, September.
    2. Robert Dylewski & Janusz Adamczyk, 2021. "Optimum Thickness of Thermal Insulation with Both Economic and Ecological Costs of Heating and Cooling," Energies, MDPI, vol. 14(13), pages 1-17, June.
    3. Piotr Michalak & Krzysztof Szczotka & Jakub Szymiczek, 2021. "Energy Effectiveness or Economic Profitability? A Case Study of Thermal Modernization of a School Building," Energies, MDPI, vol. 14(7), pages 1-21, April.

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