A Short Note on Using a Time Constant in Specifying Smoke Filling Time in an Atrium Under an Unsteady Fire

Wan Ki Chow

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


A time constant derived from a t-squared fire with the geometry of an atrium is proposed to specify the smoke filling time. The smoke filling pro cesses in 27 atria with volume varying from 2,500 to 35,000 m3were simulated by the fire zone model CFAST version 2.0. The atria are located adjacent to a “fire” shop at a lower level. Correlation relationships between the smoke filling time and the time constant are derived. Further, performance of smoke control systems in the atria are evaluated.
Original languageEnglish
Pages (from-to)434-444
Number of pages11
JournalJournal of Fire Sciences
Issue number6
Publication statusPublished - 1 Jan 1995

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

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