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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Abstract

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.
Original languageEnglish
Title of host publicationROOMVENT 2009 : Proceedings of the 11th International ROOMVENT Conference
EditorsKwang-Woo Kim, Dong-Won Yoon, Myoung Souk Yeo, Hyeun-Jun Moon, Cheol-Soo Park
Number of pages9
Publication date2009
Pages770-779
Publication statusPublished - 2009
EventThe International Conference on Air Distribution in Rooms : ROOMVENT - Busan, Korea, Republic of
Duration: 24 May 200927 May 2009
Conference number: 11

Conference

ConferenceThe International Conference on Air Distribution in Rooms : ROOMVENT
Number11
CountryKorea, Republic of
CityBusan
Period24/05/200927/05/2009

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Hospital beds
Partitions (building)
Ceilings
Ventilation
Textiles
Impurities
Air
Gases
Experiments

Bibliographical note

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

Cite this

Nielsen, P. V., Li, Y., Buus, M., & Winther, F. V. (2009). Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds. In K-W. Kim, D-W. Yoon, M. S. Yeo, H-J. Moon, & C-S. Park (Eds.), ROOMVENT 2009: Proceedings of the 11th International ROOMVENT Conference (pp. 770-779)
Nielsen, Peter V. ; Li, Yuguo ; Buus, Morten ; Winther, Frederik V. / Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds. ROOMVENT 2009: Proceedings of the 11th International ROOMVENT Conference. editor / Kwang-Woo Kim ; Dong-Won Yoon ; Myoung Souk Yeo ; Hyeun-Jun Moon ; Cheol-Soo Park. 2009. pp. 770-779
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title = "Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds",
abstract = "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.",
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Nielsen, PV, Li, Y, Buus, M & Winther, FV 2009, Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds. in K-W Kim, D-W Yoon, MS Yeo, H-J Moon & C-S Park (eds), ROOMVENT 2009: Proceedings of the 11th International ROOMVENT Conference. pp. 770-779, Busan, Korea, Republic of, 24/05/2009.

Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds. / Nielsen, Peter V.; Li, Yuguo; Buus, Morten; Winther, Frederik V.

ROOMVENT 2009: Proceedings of the 11th International ROOMVENT Conference. ed. / Kwang-Woo Kim; Dong-Won Yoon; Myoung Souk Yeo; Hyeun-Jun Moon; Cheol-Soo Park. 2009. p. 770-779.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Nielsen PV, Li Y, Buus M, Winther FV. Cross Infection in Hospital Wards with Downward Ventilation - Different Locations of Return Openings without and with Partitions between Beds. In Kim K-W, Yoon D-W, Yeo MS, Moon H-J, Park C-S, editors, ROOMVENT 2009: Proceedings of the 11th International ROOMVENT Conference. 2009. p. 770-779