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In Situ Monitoring of Drying Process of Masonry Walls

Author

Listed:
  • Łukasz Cieślikiewicz

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 21/25 Nowowiejska St., 00-665 Warsaw, Poland)

  • Piotr Łapka

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 21/25 Nowowiejska St., 00-665 Warsaw, Poland)

  • Radosław Mirowski

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 21/25 Nowowiejska St., 00-665 Warsaw, Poland)

Abstract

The in situ hygro-thermal behavior of a wet masonry wall during its drying process is presented in this paper. The considered wall is a part of a basement of a historic building that was subjected to renovation works. The building is located in the City of Łowicz (Poland). The drying process was implemented by applying the thermo-injection method and a novel prototype of the drying device used for this method. The dedicated acquisition system was developed to in situ monitor parameters of the drying process. The air temperature and relative humidity in various locations in the basement, temperatures and moisture contents at several points of the wet wall as well as the electrical parameters of the drying device were registered. Based on variations of the monitored parameters, the hygro-thermal behavior of the wall during drying was studied. After 6 days of drying, the wall temperature in the drying zone was increased to approximately 40–55 °C, while the moisture content was reduced to the mean level of 3.76% vol. (2.35% wt.). These wall parameters allowed for effective impregnation of the wall with the hydrophobic silicone micro-emulsion, which created horizontal and vertical waterproofing. Moreover, the specific energy consumption during the drying process defined as energy consumption divided by the mean volumetric moisture content drop (MC) between the initial and final state in the wall and by the length of the dried wall section was estimated to be 11.08 kWh/MC%/m.

Suggested Citation

  • Łukasz Cieślikiewicz & Piotr Łapka & Radosław Mirowski, 2020. "In Situ Monitoring of Drying Process of Masonry Walls," Energies, MDPI, vol. 13(23), pages 1-13, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:23:p:6190-:d:450775
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    References listed on IDEAS

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    1. Umberto Berardi & Lamberto Tronchin & Massimiliano Manfren & Benedetto Nastasi, 2018. "On the Effects of Variation of Thermal Conductivity in Buildings in the Italian Construction Sector," Energies, MDPI, vol. 11(4), pages 1-17, April.
    2. Mirosław Seredyński & Michał Wasik & Piotr Łapka & Piotr Furmański & Łukasz Cieślikiewicz & Karol Pietrak & Michał Kubiś & Tomasz S. Wiśniewski & Maciej Jaworski, 2020. "Analysis of Non-Equilibrium and Equilibrium Models of Heat and Moisture Transfer in a Wet Porous Building Material," Energies, MDPI, vol. 13(1), pages 1-13, January.
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    Cited by:

    1. Benedetto Nastasi & Francesco Mancini, 2021. "Procedures and Methodologies for the Control and Improvement of Energy-Environmental Quality in Construction," Energies, MDPI, vol. 14(9), pages 1-2, April.
    2. Piotr Łapka & Łukasz Cieślikiewicz, 2021. "Efficiency Comparison between Two Masonry Wall Drying Devices Using In Situ Data Measurements," Energies, MDPI, vol. 14(21), pages 1-14, November.
    3. Wasik, Michał & Łapka, Piotr, 2022. "Analysis of seasonal energy consumption during drying of highly saturated moist masonry walls in polish climatic conditions," Energy, Elsevier, vol. 240(C).
    4. Wasik, Michał & Łapka, Piotr, 2023. "Numerical analysis on the energy efficiency improvement of thermo-injection method of masonry walls drying by applying the variable temperature profiles of drying air," Energy, Elsevier, vol. 282(C).

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