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Evaluating the Use of Displacement Ventilation for Providing Space Heating in Unoccupied Periods Using Laboratory Experiments, Field Tests and Numerical Simulations

Author

Listed:
  • Saqib Javed

    (Building Services, Lund University, 221 00 Lund, Sweden)

  • Ivar Rognhaug Ørnes

    (Climate, Energy and Building Physics, Skanska Norway, 0107 Oslo, Norway)

  • Tor Helge Dokka

    (Climate, Energy and Building Physics, Skanska Norway, 0107 Oslo, Norway)

  • Maria Myrup

    (Climate, Energy and Building Physics, Skanska Norway, 0107 Oslo, Norway)

  • Sverre Bjørn Holøs

    (Architectural Engineering, SINTEF Community, 0373 Oslo, Norway)

Abstract

Displacement ventilation is a proven method of providing conditioned air to enclosed spaces with the aim to deliver good air quality and thermal comfort while reducing the amount of energy required to operate the system. Until now, the practical applications of displacement ventilation have been exclusive to providing ventilation and cooling to large open spaces with high ceilings. The provision of heating through displacement ventilation has traditionally been discouraged, out of concern that warm air supplied at the floor level would rise straight to the ceiling level without providing heat to the occupied space. Hence, a separate heating system is regularly integrated with the displacement ventilation in cold climates, increasing the cost and energy use of the system. This paper goes beyond the common industry practice and explores the possibility of using displacement ventilation to provide heating without any additional heating system. It reports on experimental investigations conducted in laboratory and field settings, and numerical simulation of these studies, all aimed at investigating the application of displacement ventilation for providing a comfortable indoor environment in winter by preheating the space prior to occupancy. The experimental results confirm that the proposed concept of providing space heating in unoccupied periods without a separate heating system is possible with displacement ventilation.

Suggested Citation

  • Saqib Javed & Ivar Rognhaug Ørnes & Tor Helge Dokka & Maria Myrup & Sverre Bjørn Holøs, 2021. "Evaluating the Use of Displacement Ventilation for Providing Space Heating in Unoccupied Periods Using Laboratory Experiments, Field Tests and Numerical Simulations," Energies, MDPI, vol. 14(4), pages 1-33, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:952-:d:497665
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    References listed on IDEAS

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    1. Paulína Šujanová & Monika Rychtáriková & Tiago Sotto Mayor & Affan Hyder, 2019. "A Healthy, Energy-Efficient and Comfortable Indoor Environment, a Review," Energies, MDPI, vol. 12(8), pages 1-37, April.
    2. Martinopoulos, Georgios & Papakostas, Konstantinos T. & Papadopoulos, Agis M., 2018. "A comparative review of heating systems in EU countries, based on efficiency and fuel cost," Renewable and Sustainable Energy Reviews, Elsevier, vol. 90(C), pages 687-699.
    3. Jovanović, Marina & Vučićević, Biljana & Turanjanin, Valentina & Živković, Marija & Spasojević, Vuk, 2014. "Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia," Energy, Elsevier, vol. 77(C), pages 42-48.
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    Cited by:

    1. John Kaiser Calautit & Hassam Nasarullah Chaudhry, 2022. "Sustainable Buildings: Heating, Ventilation, and Air-Conditioning," Energies, MDPI, vol. 15(21), pages 1-5, November.
    2. Birte Knobling & Gefion Franke & Lisa Beike & Timo Dickhuth & Johannes K. Knobloch, 2022. "Reading the Score of the Air—Change in Airborne Microbial Load in Contrast to Particulate Matter during Music Making," IJERPH, MDPI, vol. 19(16), pages 1-13, August.
    3. Gibbons, Laurence & Javed, Saqib, 2022. "A review of HVAC solution-sets and energy performace of nearly zero-energy multi-story apartment buildings in Nordic climates by statistical analysis of environmental performance certificates and lite," Energy, Elsevier, vol. 238(PA).
    4. Piotr Michalak, 2023. "Simulation and Experimental Study on the Use of Ventilation Air for Space Heating of a Room in a Low-Energy Building," Energies, MDPI, vol. 16(8), pages 1-17, April.

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