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Journal Articles

Differential pressure changes of a high airflow-type HEPA filter during solvent fire in reprocessing facilities

Tashiro, Shinsuke; Uchiyama, Gunzo; Ono, Takuya; Amano, Yuki; Yoshida, Ryoichiro; Abe, Hitoshi

Nuclear Technology, 208(7), p.1205 - 1213, 2022/07

https://doi.org/10.1080/00295450.2021.2018272
 Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)

A clogging behavior of a high-efficiency particulate air (HEPA) filter at solvent fire accidents for reprocessing facilities has been studied. In this study, the burning rates of 30% tri-butyl phosphate (TBP)/dodecane (DD) mixed solvent and DD solvent and the differential pressure ($$Delta$$P) of a high airflow typed HEPA filter applied in the actual facilities in Japan were measured. It was confirmed that the mainly burned was DD at the early stage of the mixed solvent burning and the TBP at the late stage. Furthermore, it was found that the $$Delta$$P rapidly rose at the late stage of the mixed solvent burning. The increase of the release ratio of the unburned particulate composition (TBP, its degraded solvent and inorganic phosphorus (P$$_{2}$$O$$_{5}$$)) was considered to contribute to the rapid rise. The correlating formulas with the $$Delta$$P and the mass of the loading particulates, except for the region of the rapid rise of $$Delta$$P, could be induced.

Journal Articles

Development of the face computer code to evaluate the safety of an air ventilation system during a postulated solvent fire in a nuclear fuel reprocessing plant

Nishio, Gunji; *

Nuclear Technology, 102, p.232 - 251, 1993/05

https://doi.org/10.13182/NT93-A34819
 Times Cited Count：3 Percentile：38.07(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Regulation of fire and explosion prevention in nuclear facilities and current assessment of fire impact of a reprocessing plant the environment in Japan

; *

LA-9911-C,Vol.1, p.21 - 29, 1983/00

no abstracts in English

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