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CN 34-1054/N

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Experimental study on restraining flashover by ultra-fine water mist in confined space

  • 1.

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China

  • 2.

    Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215123, China

Cite this: JUSTC, 2009, 39(7): 777-782
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  • Received Date: November 10, 2008
  • Revised Date: January 03, 2009
  • Published Date: July 30, 2009
    Abstract
  • Restraining flashover would reduce fire loss effectively. After building a small scale compartment with ultra-fine water mist restraining confined space flashover, the restraining efficiency and influencing factors were investigated. It was found that the restraining effect relies on mist flux, discharging moment and position. With sufficient mist, early discharging showed better effect compared with discharging later, while discharging from the bottom worked better than from side faces. When insufficient mist flux, the combustion enhancing effect would accelerate and intensify flashover.
    Restraining flashover would reduce fire loss effectively. After building a small scale compartment with ultra-fine water mist restraining confined space flashover, the restraining efficiency and influencing factors were investigated. It was found that the restraining effect relies on mist flux, discharging moment and position. With sufficient mist, early discharging showed better effect compared with discharging later, while discharging from the bottom worked better than from side faces. When insufficient mist flux, the combustion enhancing effect would accelerate and intensify flashover.
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