{"title":"水雾扑灭闪燃后隔室火灾的数值研究","authors":"Ye Chen, Pengfei Wang, Xuanya Liu","doi":"10.1109/ICFSFPE48751.2019.9055792","DOIUrl":null,"url":null,"abstract":"The fire suppression effectiveness of water mist for different development stages of fire is obviously different. In order to study the suppression effectiveness of water mist on the post-flashover compartment fire, the interaction process of water mist and post-flashover fire was simulated by using FDS, the effect of water mist characteristics on fire suppression was analyzed, and the suppression mechanism of water mist for the post-flashover fire was proposed. The results show that the post-flashover compartment fire can be effectively suppressed when the minimum spray intensity of high pressure water mist system specified in GB 50898 standard increases to 2.22 L/min.m2; The suppression effectiveness of medium pressure water mist on post-flashover compartment fire is inferior to that of high pressure water mist; cooling effect on the flame and oxygen displacement are the primary suppression mechanisms of water mist for post-flashover compartment fire.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"97 1","pages":"1-5"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Study on Suppression of Post-flashover Compartment Fire by Using Water Mist\",\"authors\":\"Ye Chen, Pengfei Wang, Xuanya Liu\",\"doi\":\"10.1109/ICFSFPE48751.2019.9055792\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The fire suppression effectiveness of water mist for different development stages of fire is obviously different. In order to study the suppression effectiveness of water mist on the post-flashover compartment fire, the interaction process of water mist and post-flashover fire was simulated by using FDS, the effect of water mist characteristics on fire suppression was analyzed, and the suppression mechanism of water mist for the post-flashover fire was proposed. The results show that the post-flashover compartment fire can be effectively suppressed when the minimum spray intensity of high pressure water mist system specified in GB 50898 standard increases to 2.22 L/min.m2; The suppression effectiveness of medium pressure water mist on post-flashover compartment fire is inferior to that of high pressure water mist; cooling effect on the flame and oxygen displacement are the primary suppression mechanisms of water mist for post-flashover compartment fire.\",\"PeriodicalId\":6687,\"journal\":{\"name\":\"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)\",\"volume\":\"97 1\",\"pages\":\"1-5\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICFSFPE48751.2019.9055792\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICFSFPE48751.2019.9055792","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Numerical Study on Suppression of Post-flashover Compartment Fire by Using Water Mist
The fire suppression effectiveness of water mist for different development stages of fire is obviously different. In order to study the suppression effectiveness of water mist on the post-flashover compartment fire, the interaction process of water mist and post-flashover fire was simulated by using FDS, the effect of water mist characteristics on fire suppression was analyzed, and the suppression mechanism of water mist for the post-flashover fire was proposed. The results show that the post-flashover compartment fire can be effectively suppressed when the minimum spray intensity of high pressure water mist system specified in GB 50898 standard increases to 2.22 L/min.m2; The suppression effectiveness of medium pressure water mist on post-flashover compartment fire is inferior to that of high pressure water mist; cooling effect on the flame and oxygen displacement are the primary suppression mechanisms of water mist for post-flashover compartment fire.
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