Experimental Studies of Hydraulic Losses and Carbon Dioxide Concentration in The Space Under The Face Mask Protecting Against Covid-19

• Autorzy: Teleszewski Tomasz Janusz , Gładyszewska-Fiedoruk Katarzyna , Sulewska Maria Jolanta

Identyfikatory

DOI

10.2478/ceer-2022-0042

• Języki publikacji: EN

Abstrakty

EN

Masks are the primary tool used to prevent the spread of COVID-19 in the current pandemic. Tests were carried out to determine the total pressure drop through the materials from which the masks are made and the correlation of these results with the concentration of carbon dioxide in the inner space of the mask. The results showed that a parameter representing hydraulic losses of the mask material has a significant influence on the concentration of carbon dioxide in the inner space of the mask. Masks with higher hydraulic resistances accumulated a higher concentration of carbon dioxide, and generated greater fluctuations of carbon dioxide as a function of time, which may be caused by compensation of the respiratory system. For example, in a two-layer mask (mask no. 3) the hydraulic resistance values are about three times higher than in a single-layer mask (mask no. 1). The study also noticed that the inscriptions and prints placed on the masks increase the hydraulic resistance of the material from which the masks are made, which may also contribute to the accumulation of carbon dioxide in the space between the mask and the face. To reduce the accumulation of carbon dioxide within the inner space of the mask, the results of this work suggest searching for mask materials with the lowest possible hydraulic resistance.

Słowa kluczowe

EN

face masks; COVID-19; hydraulic losses; mask material; carbon dioxide concentration

PL

maski na twarz; COVID-19; straty hydrauliczne; materiał maski; stężenie dwutlenku węgla

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Civil and Environmental Engineering Reports
• Rocznik: 2022
• Tom: Vol. 32, no. 4
• Strony: 13--24
• Opis fizyczny: Bibliogr. 32 poz., il., tab., wykr.

Twórcy

autor

Teleszewski Tomasz Janusz

• Bialystok University of Technology, Faculty of Civil Engineering and Environmental Sciences, Department of HVAC Engineering, Poland

autor

Gładyszewska-Fiedoruk Katarzyna

• Institute of Environmental Engineering, Warsaw University of Life Sciences (SGGW), Poland

• https://orcid.org/0000-0002-8515-218X

autor

Sulewska Maria Jolanta

• Bialystok University of Technology, Faculty of Civil and Environmental Engineering, Department of Geotechnics and Structural Mechanics, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)