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Optimal Thickness of the Heat Insulation Layer for the External Walls

Received: 16 January 2019     Accepted: 12 March 2019     Published: 23 October 2019
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Abstract

The paper presents the methodology for calculating the heat energy losses via external walls of apartment building before and after additional heat insulation of the facades using mineral wool insulation. Normally, a higher level of thermal insulation of external enclosing structures is provided by a greater thickness of the thermal insulation layer. Additional insulation thickness requires additional investment. The higher the level of thermal insulation of external walling, the less heat is lost through the walls. Therefore, energy saving measures should be considered not only from a technical point of view, but also from an economic point of view. Based on the known parameters of the duration of heating period, investments for additional insulation of the facades in the considered apartment building and values of the operating costs for heating before and after the facades insulation, an estimation of the predicted payback period was evaluated for various thickness of the additional thermal insulation layer (50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300 and 350 mm). For the considered object an optimal thickness of the additional heat insulation layer is calculated. For that optimal thickness, payback period, calculated with account for heating energy tariffs growth rates and discounted future cash flows, takes its minimal value.

Published in Landscape Architecture and Regional Planning (Volume 4, Issue 2)
DOI 10.11648/j.larp.20190402.12
Page(s) 28-35
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Apartment Building, External Wall, Insulation, Thermal Energy, Transmission Losses, Energy Saving Investments, Payback Period, Energy Efficiency

References
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  • APA Style

    Alexander Gorshkov. (2019). Optimal Thickness of the Heat Insulation Layer for the External Walls. Landscape Architecture and Regional Planning, 4(2), 28-35. https://doi.org/10.11648/j.larp.20190402.12

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    ACS Style

    Alexander Gorshkov. Optimal Thickness of the Heat Insulation Layer for the External Walls. Landsc. Archit. Reg. Plan. 2019, 4(2), 28-35. doi: 10.11648/j.larp.20190402.12

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    AMA Style

    Alexander Gorshkov. Optimal Thickness of the Heat Insulation Layer for the External Walls. Landsc Archit Reg Plan. 2019;4(2):28-35. doi: 10.11648/j.larp.20190402.12

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  • @article{10.11648/j.larp.20190402.12,
      author = {Alexander Gorshkov},
      title = {Optimal Thickness of the Heat Insulation Layer for the External Walls},
      journal = {Landscape Architecture and Regional Planning},
      volume = {4},
      number = {2},
      pages = {28-35},
      doi = {10.11648/j.larp.20190402.12},
      url = {https://doi.org/10.11648/j.larp.20190402.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.larp.20190402.12},
      abstract = {The paper presents the methodology for calculating the heat energy losses via external walls of apartment building before and after additional heat insulation of the facades using mineral wool insulation. Normally, a higher level of thermal insulation of external enclosing structures is provided by a greater thickness of the thermal insulation layer. Additional insulation thickness requires additional investment. The higher the level of thermal insulation of external walling, the less heat is lost through the walls. Therefore, energy saving measures should be considered not only from a technical point of view, but also from an economic point of view. Based on the known parameters of the duration of heating period, investments for additional insulation of the facades in the considered apartment building and values of the operating costs for heating before and after the facades insulation, an estimation of the predicted payback period was evaluated for various thickness of the additional thermal insulation layer (50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300 and 350 mm). For the considered object an optimal thickness of the additional heat insulation layer is calculated. For that optimal thickness, payback period, calculated with account for heating energy tariffs growth rates and discounted future cash flows, takes its minimal value.},
     year = {2019}
    }
    

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    AU  - Alexander Gorshkov
    Y1  - 2019/10/23
    PY  - 2019
    N1  - https://doi.org/10.11648/j.larp.20190402.12
    DO  - 10.11648/j.larp.20190402.12
    T2  - Landscape Architecture and Regional Planning
    JF  - Landscape Architecture and Regional Planning
    JO  - Landscape Architecture and Regional Planning
    SP  - 28
    EP  - 35
    PB  - Science Publishing Group
    SN  - 2637-4374
    UR  - https://doi.org/10.11648/j.larp.20190402.12
    AB  - The paper presents the methodology for calculating the heat energy losses via external walls of apartment building before and after additional heat insulation of the facades using mineral wool insulation. Normally, a higher level of thermal insulation of external enclosing structures is provided by a greater thickness of the thermal insulation layer. Additional insulation thickness requires additional investment. The higher the level of thermal insulation of external walling, the less heat is lost through the walls. Therefore, energy saving measures should be considered not only from a technical point of view, but also from an economic point of view. Based on the known parameters of the duration of heating period, investments for additional insulation of the facades in the considered apartment building and values of the operating costs for heating before and after the facades insulation, an estimation of the predicted payback period was evaluated for various thickness of the additional thermal insulation layer (50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300 and 350 mm). For the considered object an optimal thickness of the additional heat insulation layer is calculated. For that optimal thickness, payback period, calculated with account for heating energy tariffs growth rates and discounted future cash flows, takes its minimal value.
    VL  - 4
    IS  - 2
    ER  - 

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Author Information
  • Department of Intellectual Systems and Information Security, Institute of Information Technologies and Automation, Saint-Petersburg State University of Industrial Technologies and Design, Saint-Petersburg, Russia

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