AFFF spread over liquid surface under external radiation conditions

2019 9th International Conference on Future Environment and Energy

生态环境科学;能源学

Wang, Baowei^1^2 ; Huang, Shenshi^1 ; He, Qize^1 ; Lu, Shouxiang^1 ; Wei, Ruichao^1

State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, China^1

Fire Department of Ministry of Public Security, Beijing, China^2

关键词: Aqueous film forming foams;    Axisymmetric;    Coverage area;    External radiation;    Fire suppression;    Foam thickness;    Liquid surface;    Pool fires;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/257/1/012020/pdf
DOI  :  10.1088/1755-1315/257/1/012020

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Aqueous film forming foam (AFFF) is effective in extinguishing oil fires. The extinguishing effect generally depends on the foam spread process and its coverage area. In this study, the foam spread process under external thermal radiation is investigated. Firstly, based on the axisymmetric foam spread model, the relationship of radiation and foam thickness is discussed. Then foam spreading experiments under pool fire condition were carried out, to simulate the actual extinguishing process of AFFF. Finally, the foam spread model considering the external radiation flux is developed which may provide theoretical guidance for fire suppression using AFFF.