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Determination of the Energy Performance of a Solar Low Energy House with Regard to Aspects of Energy Efficiency and Smartness of the House

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  • Dorota Chwieduk

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 00665 Warsaw, Poland)

  • Michał Chwieduk

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 00665 Warsaw, Poland)

Abstract

The paper shows how difficult it is to prove technically that a building really is both low energy and smart, and that all aspects of energy efficiency have been treated equally. Regulations connected to the determination of the energy performance of residential buildings take into account only space and hot water heating energy consumption and define the indices of maximal primary energy consumption, but not energy needs based on the architecture of the building. A single family house designed and constructed as a low energy solar house in Warsaw’s suburbs is considered. Availability of solar energy and its influence on the architecture of the house is analyzed. A specific solar passive architectural concept with solar southern and cold northern buffer spaces incorporated into the interior of the house is presented. Parameters of the building’s structure, construction materials, as well as operation parameters of equipment and heating systems based on active use of solar energy, ground energy (via a heat pump) and waste heat from a ventilation system are described. Results of calculations give values of final and primary energy consumption index levels of 11.58 kWh/m 2 and 25.77 kWh/m 2 , respectively. However, the official methodology for determination of energy performance does not allow for presenting how energy efficient and smart the building really is.

Suggested Citation

  • Dorota Chwieduk & Michał Chwieduk, 2020. "Determination of the Energy Performance of a Solar Low Energy House with Regard to Aspects of Energy Efficiency and Smartness of the House," Energies, MDPI, vol. 13(12), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3232-:d:374831
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    References listed on IDEAS

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    1. Naveed Ahmad & Christian Ghiaus & Thimothée Thiery, 2020. "Influence of Initial and Boundary Conditions on the Accuracy of the QUB Method to Determine the Overall Heat Loss Coefficient of a Building," Energies, MDPI, vol. 13(1), pages 1-24, January.
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    Cited by:

    1. Piotr Michalak, 2022. "Hourly Simulation of an Earth-to-Air Heat Exchanger in a Low-Energy Residential Building," Energies, MDPI, vol. 15(5), pages 1-23, March.
    2. Le Thanh Tiep & Ngo Quang Huan & Tran Thi Thuy Hong, 2021. "Energy Efficiency: Determinants and Roles on Sustainable Development in Emerging Country," International Journal of Energy Economics and Policy, Econjournals, vol. 11(2), pages 7-22.
    3. Piotr Michalak, 2021. "Modelling of Solar Irradiance Incident on Building Envelopes in Polish Climatic Conditions: The Impact on Energy Performance Indicators of Residential Buildings," Energies, MDPI, vol. 14(14), pages 1-27, July.
    4. Edwin Koźniewski & Beata Sadowska & Karolina Banaszak, 2022. "Geometric Aspects of Assessing the Anticipated Energy Demand of a Designed Single-Family House," Energies, MDPI, vol. 15(9), pages 1-21, May.
    5. Piotr Olczak & Małgorzata Olek & Dominika Matuszewska & Artur Dyczko & Tomasz Mania, 2021. "Monofacial and Bifacial Micro PV Installation as Element of Energy Transition—The Case of Poland," Energies, MDPI, vol. 14(2), pages 1-22, January.
    6. Piotr Olczak, 2022. "Energy Productivity of Microinverter Photovoltaic Microinstallation: Comparison of Simulation and Measured Results—Poland Case Study," Energies, MDPI, vol. 15(20), pages 1-14, October.
    7. Piotr Michalak, 2022. "Impact of Air Density Variation on a Simulated Earth-to-Air Heat Exchanger’s Performance," Energies, MDPI, vol. 15(9), pages 1-24, April.

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