Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds

Peter V. Nielsen, Yuguo Li, Morten Buus, Frederik V. Winther

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Abstrakt

A two-bed hospital ward with one standing healthcare assistant and a ceiling-mounted low-impulse semicircular inlet diffuser is simulated in a full-scale room. Tracer gas is used for simulating gaseous contaminants, and the concentration is measured at different air change rates and different postures of the patients. A textile partition between the beds, which is typical in a hospital ward, is used for protection of the patients in some of the experiments. Three different layouts of return openings are tested. One layout with one opening at the ceiling, another with four openings at the wall opposite to the inlet diffuser, and one with a high location of these four openings. The downward recirculating flow is on average parallel with the partition, and the partition does not decrease cross infection. A high location of the four return openings decreases the risk of cross infection.
OriginalsprogEngelsk
TitelROOMVENT 2009 : Proceedings of the 11th International ROOMVENT Conference
RedaktørerKwang-Woo Kim, Dong-Won Yoon, Myoung Souk Yeo, Hyeun-Jun Moon, Cheol-Soo Park
Antal sider9
Publikationsdato2009
Sider770-779
StatusUdgivet - 2009
BegivenhedThe International Conference on Air Distribution in Rooms : ROOMVENT - Busan, Sydkorea
Varighed: 24 maj 200927 maj 2009
Konferencens nummer: 11

Konference

KonferenceThe International Conference on Air Distribution in Rooms : ROOMVENT
Nummer11
LandSydkorea
ByBusan
Periode24/05/200927/05/2009

Bibliografisk note

Conference website http://www.roomvent2009.org/

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