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• W3201950284 abstract "Проведен анализ российских и международных нормативных документов, регламентирующих требования пожарной безопасности к тепловой изоляции стационарных резервуаров хранения сжиженного природного газа (СПГ). Рассмотрены результаты наиболее интересных крупномасштабных экспериментов по огневому воздействию на указанные резервуары. Найдено, что требования нормативных документов к тепловой изоляции направлены, как правило, на защиту резервуаров СПГ от теплового воздействия окружающей среды. Поэтому для защиты от теплового воздействия пожара следует дополнительно использовать водяное орошение наружных стенок резервуара. На основе результатов указанных экспериментов можно сделать вывод о перспективности применения вакуумно-перлитовой тепловой изоляции для защиты двухоболочечных резервуаров СПГ с полной герметизацией. Однако для практической реализации этого способа необходимо проведение экспериментов при плотности теплового потока на наружную оболочку резервуара не менее 200 кВт/м. There was carried out the analysis of Russian and international normative documents containing fire safety requirements for a thermal isolation of stationary LNG storage tanks. There were considered the results of the most interesting large scale experiments on a flame effect on these tanks published in literature. The main Russian normative document which contains the fire safety requirements for the LNG tanks of a volume higher than 260 m3 with a pressure not higher than 0.8 MPa is State Standard SP 240.1311500.2015. The thermal isolation of these tanks should be non-combustible. According to State Standad SP 156.13130.2014 which contains the fire safety requirements for car refueling stations, the thermal isolation should provide the integrity of LNG tank for action of a design fire during 60 min. There is required the vacuum thermal isolation for tanks according to State Standard SP 326.1311500.2017 which contains the fire safety requirements for the LNG tanks of a volume not higher than 260 m and a pressure not higher 0.8 MPa. The pearlite and vacuum thermal isolation of tanks is required except membrane tanks for which a combustible thermal isolation is possible according to international standards EN 1473: 2016, NFPA 59A: 2016, NFPA 57: 2002 which contain the fire safety requirements for various types of LNG tanks. It was found that the requirements for thermal isolation are generally aimed on protection of LNG from the thermal impact of environment. Therefore water deluge systems should be used for protection against thermal radiation from fires. It was concluded that application of thermal isolation only for protection from fires is hardly possible. The application of the vacuum-pearlite isolation is one of the possible ways for reliable protection of double-envelope LNG tanks from fires. The investigations of this type of thermal isolation have been carried out only for thermal radiation intensity up to 75 kW/m, but the thermal radiation intensity of LNG fires exceeds 200 kW/m.Therefore it is necessary to conduct experiments for such value of thermal radiation intensity. There can be created mathematical models on the basis of these experiments which can describe the behavior of LNG tanks during fire for various types of thermal isolation." @default.
• W3201950284 created "2021-10-11" @default.
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• W3201950284 date "2021-10-05" @default.
• W3201950284 modified "2023-10-18" @default.
• W3201950284 title "Fire safety requirements for thermal isolation of LNG storage tank" @default.
• W3201950284 doi "https://doi.org/10.37657/vniipo.pb.2021.72.25.006" @default.
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