Influence of ventilation to limit airborne infection concentration in an isolation room

• Autorzy: Kassem Fatma A.-M. , Abdelgawad Ahmed Farouk , Abu El-Ezz A. E. , Nassief Mofreh M. , Adel Mohamed

Identyfikatory

DOI

10.37190/epe230204

• Języki publikacji: EN

Abstrakty

EN

Coronavirus (COVID-19) was detected at the end of 2019 and has since caused a worldwide pandemic. This virus is transferred airborne. In this study, an investigation was carried out of the ventilation strategies inside the isolation room based on exhaust air locations. To reduce the infection disease (COVID-19), due to the spreading of exhaled contaminants by humans in interior environments, five models for ventilation systems differing in the position of the outlet and inlet were used. This study aims to increase knowledge regarding the exhaled contaminant distribution under different environ-mental conditions (opening exhaust and negative pressure). The results showed a good agreement be-tween the computational results and the experimental data. Tracer gas CO₂ was used to evaluate the air quality experimentally and computationally. The results showed that stable conditions are obtained inside the room at a negative pressure value above –1.5 Pa. The residence time of the infected airborne decreases when the pressure difference increases. The study revealed that the model with an air outlet opening installed behind the patient enabled avoiding the spread of infection in the room.

Słowa kluczowe

EN

COVID-19; ventilation; exhaled air; air exchange; test model; hospital room; CO2

PL

COVID-19; wentylacja; powietrze wydychane; sala szpitalna; wymiana powietrza; model badawczy; CO2

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2023
• Tom: Vol. 49, nr 2
• Strony: 39--54
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Kassem Fatma A.-M.

• Department of Volume and Fluid Flow Metrology Laboratory, National Institute of Standards, Giza, Egypt

• https://orcid.org/0000-0001-6888-5544

autor

Abdelgawad Ahmed Farouk

• Department of Mechanical Power Engineering, Faculty of Engineering, Zagazig University, Egypt

• https://orcid.org/0000-0002-2480-8229

autor

Abu El-Ezz A. E.

• Department of Force and Material Metrology Laboratory, National Institute of Standards, Giza, Egypt

• https://orcid.org/0009-0005-6585-8416

autor

Nassief Mofreh M.

• Department of Mechanical Power Engineering, Faculty of Engineering, Zagazig University, Egypt

• https://orcid.org/0009-0003-0216-1561

autor

Adel Mohamed

• Department of Mechanical Power Engineering, Faculty of Engineering, Zagazig University, Egypt

• https://orcid.org/0009-0007-7108-4220

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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).