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Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus

Author

Listed:
  • Waldemar Fedak

    (Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland)

  • Roman Ulbrich

    (Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland)

  • Grzegorz Ligus

    (Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland)

  • Marek Wasilewski

    (Department of Safety Engineering and Technical Systems, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland)

  • Szymon Kołodziej

    (Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland)

  • Barbara Wasilewska

    (Department of Management and Production Engineering, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland)

  • Marek Ochowiak

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Sylwia Włodarczak

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Andżelika Krupińska

    (Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland)

  • Ivan Pavlenko

    (Department of Computational Mechanics Named after V. Martsynkovsky, Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 40007 Sumy, Ukraine)

Abstract

This article reports the results of a study into the effect of operating parameters on the occurrence and course of gas–liquid two-phase phenomena during the fogging process carried out with the use of a conical pressure-swirl nozzle. Four alternatives of the stub regulation angles and four values of pressure of air supply to the nozzle were tested as part of the current research. The range of the investigated variables was common for the operation of fumigators used to prevent the spread of SARS-CoV-2 virus. The liquid flow rate (weighting method), the field of velocity, and turbulent flow intensity factor, as well as velocity profiles over the section of 1 m from the nozzle were determined using the particle image velocimetry (PIV) technique. The obtained results were correlated with the measurements of the diameters of spray droplets using the laser light scattering (LLS) technique. On the basis of this research, a dependence between the nozzle parameters and the spray cone pattern was identified in terms of dynamics and droplet diameter distribution. As a result of the research, a wide range of parameters were identified in which the fogging process was carried out in a stable and repeatable manner. There were exceptions to this rule only in the cases when there was a deficiency of the liquid necessary to generate a two-phase mixture.

Suggested Citation

  • Waldemar Fedak & Roman Ulbrich & Grzegorz Ligus & Marek Wasilewski & Szymon Kołodziej & Barbara Wasilewska & Marek Ochowiak & Sylwia Włodarczak & Andżelika Krupińska & Ivan Pavlenko, 2021. "Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus," Energies, MDPI, vol. 14(14), pages 1-19, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4280-:d:594920
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    References listed on IDEAS

    as
    1. Krystian Czernek & Marek Ochowiak & Sylwia Włodarczak, 2020. "Effect of Rheological Properties of Aqueous Solution of Na-CMC on Spray Angle for Conical Pressure-Swirl Atomizers," Energies, MDPI, vol. 13(23), pages 1-14, November.
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    5. V. G. Kamaltdinov & V. A. Markov & I. O. Lysov & A. A. Zherdev & V. V. Furman, 2019. "Experimental Studies of Fuel Injection in a Diesel Engine with an Inclined Injector," Energies, MDPI, vol. 12(14), pages 1-18, July.
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    Cited by:

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    2. Wiktor Wąsik & Małgorzata Majder-Łopatka & Wioletta Rogula-Kozłowska, 2022. "Influence of Micro- and Macrostructure of Atomised Water Jets on Ammonia Absorption Efficiency," Sustainability, MDPI, vol. 14(15), pages 1-14, August.

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