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JAEA Reports

Differential pressure analysis for ventilation filter by smoke under fire accident with CELVA-1D

Watanabe, Koji; Tashiro, Shinsuke; Abe, Hitoshi; Takada, Junichi; Morita, Yasuji

JAERI-Tech 2004-029, 48 Pages, 2004/03

JAERI-Tech-2004-029.pdf:3.19MB

In a part of building ventilating installation of a nuclear fuel facility, a reprocessing plant for example, the pre-filters are adopted as one of the ventilation filters. In a fire accident, it is supposed that, because of the pre-filter clogging by large smoke, its differential pressure ($$Delta$$p) is evolved up to the value at its breakage. Therefore, in regard to maintaining the confinement of radioactive materials, it is important to predict the time course of $$Delta$$p of the pre-filter accurately. In the current study, it was assumed that the empirical equation for the DF of the pre-filter as function of smoke particle diameter (SPD), between 0.7-2 $$mu$$m, could be applied to estimating its DF for SPD above 2 $$mu$$m. Under this assumption, the time corresponding to its $$Delta$$p at its breakage, calculated by CELVA-1D, was agreed well with the experimental result.

JAEA Reports

Evaluation of released source terms from burning mock combustible waste

Abe, Hitoshi; Watanabe, Koji*; Tashiro, Shinsuke; Takada, Junichi; Uchiyama, Gunzo

JAERI-Research 2001-052, 18 Pages, 2001/11

JAERI-Research-2001-052.pdf:1.83MB

no abstracts in English

Journal Articles

Generation of smoke and clogging of ventilation filter under burning of bitumen/salt mixture

Abe, Hitoshi; Takada, Junichi; Tsukamoto, Michio; *; Murata, Mikio

Journal of Nuclear Science and Technology, 36(7), p.619 - 625, 1999/07

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

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