2023 年 65 巻 211 号 p. 29-36
In this study, we investigated the impact of fluorine compounds added to foam used in petroleum tank fires on the extinguishment performance if the use of fluorine compounds were to be banned in the near future. In addition, the study examined ways to improve the efficiency of extinguishing petroleum tank fires with fluorine-free foams. As a result, it was found that the addition of fluorine compounds is extremely important to ensure the extinguishment performance of the foam. Although under limited conditions, the optimum foam properties (Expansion ratio and Drainage rate) and foam application rate were shown for foam extinguishment in petroleum tank fires. However, it is known that foam extinguishment performance is greatly affected by tank size and oil type, as well as by the foam application method. Therefore, it is necessary to further study the extinguishment performance of foam against these parameters.