Title: Experiment and mechanism study on extinguishing fire by water mist charged with positive or negative electric
Abstract: In order to study the influences of water mist charged with positive or negative electric on extinguishing fire,the theory and technology on water mist extinguishing fire were richen,and a small experimental platform aiming to extinguish alcohol fire by the induction of charged water mist in a confined space has been set up.By changing the positive or negative voltage,different electric charged water mist can be attained.According to the analysis of extinguishing time,flame images and temperature change,the extinguishing effect can be compared and the mechanism about physical and chemical functions can be analyzed as well.The results show that charged water mist is better than normal water mist,meanwhile the positive-charged water mist is better than the negative-charged water mist if mainly considering the effect of fire extinguishing.Positive-charged water mist can induce free radical in a combustion field to be a barrier destroyed,and counteract positive ion of flame to prevent a combustion chain from transferring.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 1
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