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Displacement Ventilation in Hospital environments
University of Hong Kong.
University of Aaalborg.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Building science - installation technology. (Inomhusmiljö)
2011 (English)In: ASHRAE Journal, ISSN 0001-2491, E-ISSN 1943-6637, Vol. 53, no 6, p. 86-88Article in journal (Refereed) Published
Abstract [en]

Experts suggest that displacement ventilation can play a key role in providing better ventilation facilities in hospital environments. Designers need to consider that hospitals differ from conventional buildings in terms of ventilation needs. Exhaled infectious droplets or droplet nuclei of an infected patient need to be removed in general wards, waiting areas and isolation rooms to minimize transmission to health-care workers, other patients and visitors. The supply air is provided via a floor level opening at a low velocity in displacement ventilation The only way for air and pollutants to transport from the lower to upper zone is via the plumes that penetrate the interface. Displacement ventilation creates a flow pattern that makes it difficult for a pollutant released in the upper zone to spread to the lower one. The stable thermal stratification zone plays a dual role for displacement ventilation.

Place, publisher, year, edition, pages
2011. Vol. 53, no 6, p. 86-88
Keywords [en]
Displacement Ventilation Hospitals
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hig:diva-10117ISI: 000291497500025Scopus ID: 2-s2.0-83455181957OAI: oai:DiVA.org:hig-10117DiVA, id: diva2:441140
Available from: 2011-09-14 Created: 2011-09-14 Last updated: 2018-03-13Bibliographically approved

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Sandberg, Mats

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