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Article: Displacement ventilation in hospital environments

TitleDisplacement ventilation in hospital environments
Authors
KeywordsDisplacement ventilation
Dual role
Floor level
Hospital environment
Infected patients
Issue Date2011
PublisherAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
Citation
ASHRAE Journal, 2011, v. 53 n. 6, p. 86-88 How to Cite?
AbstractExperts 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.
Persistent Identifierhttp://hdl.handle.net/10722/157161
ISSN
2014 Impact Factor: 0.190
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Yen_US
dc.contributor.authorNielsen, PVen_US
dc.contributor.authorSandberg, Men_US
dc.date.accessioned2012-08-08T08:45:36Z-
dc.date.available2012-08-08T08:45:36Z-
dc.date.issued2011en_US
dc.identifier.citationASHRAE Journal, 2011, v. 53 n. 6, p. 86-88en_US
dc.identifier.issn0001-2491en_US
dc.identifier.urihttp://hdl.handle.net/10722/157161-
dc.description.abstractExperts 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.en_US
dc.languageengen_US
dc.publisherAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.-
dc.relation.ispartofASHRAE Journalen_US
dc.subjectDisplacement ventilation-
dc.subjectDual role-
dc.subjectFloor level-
dc.subjectHospital environment-
dc.subjectInfected patients-
dc.titleDisplacement ventilation in hospital environmentsen_US
dc.typeArticleen_US
dc.identifier.emailLi, Y: liyg@hku.hken_US
dc.identifier.emailSandberg, M: Mats.Sandberg@hig.se-
dc.identifier.emailNielsen, PV: pvn44@hku.hk-
dc.identifier.authorityLi, Y=rp00151en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-83455181957en_US
dc.identifier.hkuros209888-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-83455181957&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume53en_US
dc.identifier.issue6en_US
dc.identifier.spage86en_US
dc.identifier.epage88en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSandberg, M=35585315900en_US
dc.identifier.scopusauthoridNielsen, PV=24773772900en_US
dc.identifier.scopusauthoridLi, Y=7502094052en_US

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