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cross-infection in a hospital wardroom with individual return openings
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology.ORCID iD: 0000-0002-9361-1796
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology.ORCID iD: 0000-0003-1882-3833
2015 (English)In: Proceedings of International Conference on Healthy Buildings 2015 Europe. May 18-20th 2015 – Eindhoven – The Netherlands., 2015Conference paper, Published paper (Refereed)
Abstract [en]

This article considers the role of individual return openings in controlling the spread of infection in a two-bed hospital ward. It proposes a simple and economical ventilation design capable of reducing cross-infection risk. A two-bed hospital ward ventilated by a ceiling-level low velocity diffuser was considered. Computational fluid dynamics analysis was used to simulate and compare particle removal efficiency of return openings. Different particle sizes were considered for simulating pathogenic contaminants and their concentration was calculated in patient breathing zones. A range of return opening velocities was tested. According to the results, boosting local individual return opening air velocity could effectively increase ventilation performance and particle removal efficiency could be significantly improved. The proposed personal exhaust opening system can be potentially applied in retrofitting practice in existing hospital wards with high cost effectiveness as compared to a full-scale renovation.

Place, publisher, year, edition, pages
2015.
National Category
Environmental Health and Occupational Health
Research subject
Engineering Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-163418OAI: oai:DiVA.org:kth-163418DiVA: diva2:800316
Conference
Healthy Buildings 2015 Europe, May 18-20th 2015 – Eindhoven – The Netherlands.
Note

NQC 2015

Available from: 2015-04-02 Created: 2015-04-02 Last updated: 2015-05-18Bibliographically approved

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Sadrizadeh, SasanHolmberg, Sture

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