A study of natural ventilation in a refuge floor

Cheng, Charles Chor Kwan, Lam, K. M., Yuen, Richard K. K., Lo, S. M., & Liang, Jun (2007) A study of natural ventilation in a refuge floor. Building and Environment, 42(9), pp. 3322-3332.

View at publisher


Under the Building Codes of Hong Kong Special Administration Region, the provision of refuge floors has been an indispensable element in high-rise building design since 1996. Wind-induced cross natural ventilation is an important design criterion of a refuge floor since it helps to prevent any smoke entering to become persistent state remained (logging) on the refuge floor. This paper reports a study of refuge floor natural ventilation induced by wind flow around a high-rise building with a refuge floor arriving from different wind incidence angles. The study is based on CFD simulations which are validated by wind tunnel measurements. The refuge floor under investigation has a main services core at the centre and support walls flush with the building walls along two opposite sides. The results reveal that at all wind angles, wind is able to enter the refuge space from the windward side and escape from the leeward side. At some wind angles, wind is found to re-enter the refuge space from the leeward opening and accumulate behind the main services core. Based on the results, we suggest that stairs connecting to the refuge space should be located inside the side corridors formed by the internal and external side walls.

Impact and interest:

13 citations in Scopus
Search Google Scholar™
12 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 19292
Item Type: Journal Article
Refereed: Yes
DOI: 10.1016/j.buildenv.2006.08.031
ISSN: 0360-1323
Deposited On: 30 Mar 2009 07:27
Last Modified: 10 Aug 2011 18:35

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page