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Author:

Li, Yan-Feng (Li, Yan-Feng.) (Scholars:李炎锋) | Li, Jun-Mei (Li, Jun-Mei.) | Chow, W.K. (Chow, W.K..) | Sun, Yu-Ying (Sun, Yu-Ying.)

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Abstract:

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.

Keyword:

Fire extinguishers Temperature Transients Conservation Oxygen

Author Community:

  • [ 1 ] [Li, Yan-Feng]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China
  • [ 2 ] [Li, Jun-Mei]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China
  • [ 3 ] [Chow, W.K.]Department of Building Service Engineering, Hongkong Polytechinc University, Hong Kong, Hong Kong
  • [ 4 ] [Sun, Yu-Ying]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

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Source :

Journal of Beijing University of Technology

ISSN: 0254-0037

Year: 2006

Issue: 9

Volume: 32

Page: 802-807

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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