Theoretical study of water mist system in building fire extinguishment

Yan Feng Li, Jun Mei Li, Wan Ki Chow, Yu Ying Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review


A one-zone transient model is developed for obstructed fire where extinguishments primarily occur as a result of reduction in oxygen concentration due to consumption of oxygen by fire and dilution of oxygen with water vapor. The model is based on mass conservation of gas species and conservation of energy. This model is used to predict the fire extinguishments by water mist system under the continuous and cycling discharge modes. There is a good agreement between numerical and experimental results in air temperature and dry oxygen concentration. In addition, results show that cycling discharge water mist system would give more rapid extinguishment and consume less water for the obstructed fire in comparing with the continuous discharge mode.
Original languageChinese (Simplified)
Pages (from-to)802-807
Number of pages6
JournalBeijing Gongye Daxue Xuebao / Journal of Beijing University of Technology
Issue number9
Publication statusPublished - 1 Sept 2006


  • Cycling discharge
  • Fire extinguishment
  • Water mist
  • Zone model

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Information Systems
  • Civil and Structural Engineering
  • Environmental Engineering
  • Mechanical Engineering

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