Smoke filling in closed compartments with elevated fire sources

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jiaqing Zhang
  • Shouxiang Lu
  • Qiang Li
  • Bing Chen
  • Man Yuan
  • Changhai Li

Detail(s)

Original languageEnglish
Pages (from-to)14-23
Journal / PublicationFire Safety Journal
Volume54
Publication statusPublished - Nov 2012

Abstract

An experimental study on smoke filling in closed compartments with elevated fire sources is presented. Experiments were conducted with elevated fires in a closed compartment with interior dimensions of 3.000 m (L)×3.000 m (W)×1.950 m (H). Various parameters, such as the light extinction coefficient, the oxygen concentration and the gas temperature, showed distinct stratification phenomena, and the interface of the stratification was the fuel surface level. The results indicated that the smoke layer descended to the fuel surface level but did not descend directly to the floor at the center of the compartment; rather, it continued the filling process by wall jets. A similar stratification was observed in a closed burning compartment with interior dimensions of 1.000 m (L)×1.000 m (W)×0.750 m (H) through tracking the smoke by a laser sheet. A visualization showed that the wall jets penetrated the interface, traveled along the wall, concentrated at the floor and then rose from the center of the floor. With continuous burning, the smoke filled the lower layer. © 2012 Elsevier Ltd.

Research Area(s)

  • Compartment fire, Elevated fire, Smoke filling, Smoke visualization, Wall jet

Citation Format(s)

Smoke filling in closed compartments with elevated fire sources. / Zhang, Jiaqing; Lu, Shouxiang; Li, Qiang et al.
In: Fire Safety Journal, Vol. 54, 11.2012, p. 14-23.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review