Publication:
An Influence of the Peculiarities of the Concentration Field of Gaseous Fire Extinguishing Substances with High Boiling Point on Their Fire Extinguishing Properties

Дата
2020
Авторы
Kopylov, P. S.
Eltyshev, I. P.
Boroday, S. P.
Rozum, L. I.
Kopylov, S. N.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
© 2020 Published under licence by IOP Publishing Ltd.Behaviour of fluoroketone CF3CF2C(O)CF(CF3)2 as gaseous fire suppressant in various volumes was studied computationally and experimentally. It was showed that non-uniformity of the concentration field of fire extinguishing agent having high boiling point influences strongly its effectiveness: extinguishing concentration of the fluoroketone rises from 3.5 % vol. in the smallest volume (1 m3) up to 4.5 % vol. in 100 m3. Relatively uniform extinguishing medium was found in 1 m3 only. In bigger volumes a torus-like inhomogeneity with a reduced concentration of fire suppressant in the middle part of the room is formed. To compensate this effect it is necessary to increase the average concentration of the agent. More complex geometry of the experimental premise may cause appearance of long-term existing non-uniformity of extinguishing environment which is difficult to overcome by increasing the average concentration of fire suppressant or by increasing the discharge time. To obtain practically effective test results it is necessary to increase standard test chamber to 100 m3 (or more).
Описание
Ключевые слова
Цитирование
An Influence of the Peculiarities of the Concentration Field of Gaseous Fire Extinguishing Substances with High Boiling Point on Their Fire Extinguishing Properties / Kopylov, P.S. [et al.] // IOP Conference Series: Earth and Environmental Science. - 2020. - 459. - № 4. - 10.1088/1755-1315/459/4/042044
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