On the minimum smoke extraction rate for basement required in the local fire codes

Wan Ki Chow

Research output: Journal article publicationJournal articleAcademic research


Smoke control systems are required in basements in Hong Kong under certain conditions. The differences in the smoke extraction rate listed in the two versions of fire service installation codes are discussed. Empirical equations on the smoke production rate appeared in the literature are used to explain the physics behind the codes. A design graph on the number of air changes per hour and the resulted clear height is recommended for local use.
Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalInternational journal on engineering performance-based fire codes
Issue number3
Publication statusPublished - 2000

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