LAPSE:2023.33700
Published Article
LAPSE:2023.33700
Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus
April 24, 2023
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.
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.
Record ID
Keywords
COVID-19, droplet diameter, fogging, fumigation, nozzle, PIV, SARS-CoV-2, spray, turbulent flow intensity factor, velocity field
Subject
Suggested Citation
Fedak W, Ulbrich R, Ligus G, Wasilewski M, Kołodziej S, Wasilewska B, Ochowiak M, Włodarczak S, Krupińska A, Pavlenko I. Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus. (2023). LAPSE:2023.33700
Author Affiliations
Fedak W: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland
Ulbrich R: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland
Ligus G: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland [ORCID]
Wasilewski M: Department of Safety Engineering and Technical Systems, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland [ORCID]
Kołodziej S: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland
Wasilewska B: Department of Management and Production Engineering, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland
Ochowiak M: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Włodarczak S: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland [ORCID]
Krupińska A: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland [ORCID]
Pavlenko I: Department of Computational Mechanics Named after V. Martsynkovsky, Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 40007 Sumy, Ukraine [ORCID]
Ulbrich R: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland
Ligus G: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland [ORCID]
Wasilewski M: Department of Safety Engineering and Technical Systems, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland [ORCID]
Kołodziej S: Department of Process and Environmental Engineering, Faculty of Mechanical Engineering, Opole University of Technology, 45-758 Opole, Poland
Wasilewska B: Department of Management and Production Engineering, Faculty of Production Engineering and Logistics, Opole University of Technology, 45-758 Opole, Poland
Ochowiak M: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Włodarczak S: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland [ORCID]
Krupińska A: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland [ORCID]
Pavlenko I: Department of Computational Mechanics Named after V. Martsynkovsky, Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 40007 Sumy, Ukraine [ORCID]
Journal Name
Energies
Volume
14
Issue
14
First Page
4280
Year
2021
Publication Date
2021-07-15
ISSN
1996-1073
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PII: en14144280, Publication Type: Journal Article
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LAPSE:2023.33700
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https://doi.org/10.3390/en14144280
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Apr 24, 2023
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