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Parametric Study of Air Infiltration in Residential Buildings—The Effect of Local Conditions on Energy Demand

Author

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  • Artur Miszczuk

    (Institute of Building Engineering, Warsaw University of Technology, al. Armii Ludowej 16, 00-637 Warsaw, Poland)

  • Dariusz Heim

    (Department of Environmental Engineering, Lodz University of Technology, ul. Wolczanska 213, 90-924 Lodz, Poland)

Abstract

Airtightness is nowadays one of the physical parameters which determine overall building energy performance. In a wide range of states, the upper limit for air change rate at a Pa ( n a ), air permeability rate at a Pa ( q a ), or specific leakage rate at a Pa ( w a ) is determined by the formal regulations. It should be highlighted that airtightness requirements are mainly the same around the world, disregarding any site and climatic conditions. The main goal of the presented work was to reveal the effect of individual location and surrounding infiltration rate and heat demand. The analyses were done using numerical techniques and computational models of the three buildings developed and calibrated based on the blower door test results. The compared buildings characterize by a similar geometry but differ in the air change rate at 50 Pa ( n 50 ). Analyses done for different locations and levels of sheltering by surrounding elements allow the determination of the real effect of local conditions. The obtained differences in energy demand between two locations from the same climatic zone were from 70% to 90%, depending on the airtightness of the buildings. Considering different sheltered conditions, the differences for the same location can be even 200%. The obtained results allowed for the formulation of the general conclusion that building location and level of exposure could be considered in future airtightness regulations.

Suggested Citation

  • Artur Miszczuk & Dariusz Heim, 2020. "Parametric Study of Air Infiltration in Residential Buildings—The Effect of Local Conditions on Energy Demand," Energies, MDPI, vol. 14(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:127-:d:469736
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    References listed on IDEAS

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    1. Kaiser Ahmed & Margaux Carlier & Christian Feldmann & Jarek Kurnitski, 2018. "A New Method for Contrasting Energy Performance and Near-Zero Energy Building Requirements in Different Climates and Countries," Energies, MDPI, vol. 11(6), pages 1-22, May.
    2. Prateek M. Shrestha & Jamie L. Humphrey & Kelsey E. Barton & Elizabeth J. Carlton & John L. Adgate & Elisabeth D. Root & Shelly L. Miller, 2019. "Impact of Low-Income Home Energy-Efficiency Retrofits on Building Air Tightness and Healthy Home Indicators," Sustainability, MDPI, vol. 11(9), pages 1-22, May.
    3. Michał Piasecki & Krystyna Kostyrko, 2020. "Development of Weighting Scheme for Indoor Air Quality Model Using a Multi-Attribute Decision Making Method," Energies, MDPI, vol. 13(12), pages 1-35, June.
    4. Paula Ala-Kotila & Terttu Vainio & Jarmo Laamanen, 2020. "The Influence of Building Renovations on Indoor Comfort—A Field Test in an Apartment Building," Energies, MDPI, vol. 13(18), pages 1-18, September.
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    Cited by:

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    2. Łukasz Amanowicz & Katarzyna Ratajczak & Edyta Dudkiewicz, 2023. "Recent Advancements in Ventilation Systems Used to Decrease Energy Consumption in Buildings—Literature Review," Energies, MDPI, vol. 16(4), pages 1-39, February.

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