Size of multibed patient room and airborne infection risk

Masayuki Ogata*, Masakazu Suzuki, Shin Ichi Tanabe, Satoshi Hori, Shoichi Morimoto, Hitomi Tsutsumi

*この研究の対応する著者

研究成果: Paper査読

抄録

The objective of this research is to investigate the relationship between the size of a multibed patient room and the risk of airborne infection. Computational fluid dynamics simulations were used to address a number of room sizes with two types of ventilation systems. Assuming that one patient was infected and that infectious agents were contained in exhaled air, the risk of airborne infection was evaluated by the respirable concentration of each patient and the concentration distribution. The results of the simulations show that the airborne infection risk reduced with an increase in the room area, and that the risk of airborne infection tended to increase when the distance between the source of infectious agents and the exhaust outlet was larger than 2.3 m under personal ventilation conditions. In ceiling cassette type conditions, an increase in the room area may increase the risk of airborne infection because the decline in ventilation efficiency and the increase in the ventilation rate decrease the risk of airborne infection.

本文言語English
ページ52-57
ページ数6
出版ステータスPublished - 2014 1 1
イベント13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong
継続期間: 2014 7 72014 7 12

Conference

Conference13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
国/地域Hong Kong
CityHong Kong
Period14/7/714/7/12

ASJC Scopus subject areas

  • 汚染
  • 建築および建設
  • 健康、毒物学および変異誘発
  • コンピュータ サイエンスの応用

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