A Study of probabilistic risk assessment methodology of external hazard combinations; Identification of hazard combination impacts on air-cooling decay heat removal system

Okano, Yasushi; Nishino, Hiroyuki; Yamano, Hidemasa; Kurisaka, Kenichi

Proceedings of International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2019), p.274 - 281, 2019/04

A sodium-cooled fast reactor uses the ambient air as an ultimate heat sink to remove decay heat, thus meteorological phenomena can potentially pose risks to the reactor. If a rare and intense external hazard occurs concurrently with another external hazard, it would affect the systems (i.e. air cooler of decay heat removal system). In this study, a new scheme of screening of the external hazard combinations was proposed. The authors classified simultaneous or sequential combinational hazards, and identified associated potential effects in terms of hazard duration and sequential order. As a result, this study identified scenarios of the external hazard combinations of preceding rare and intense external hazard with an following additional external hazard.

Evaluation of uncertainty associated with parameters for long-term safety assessments of geological disposal

Yamaguchi, Tetsuji; Minase, Naofumi; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi

JAERI-Conf 2005-007, p.150 - 155, 2005/08

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2005-007.pdf

no abstracts in English

5th International Conference on Probabilistic safety assessment and management (PSAM5)

Furuta, Kazuo*; *; Watanabe, Norio; *; *

Nihon Genshiryoku Gakkai-Shi, 43(3), p.221 - 223, 2001/03

no abstracts in English

None

JNC TN1400 2000-012, 250 Pages, 2000/11

JNC-TN1400-2000-012.pdf:10.18MB

no abstracts in English

None

JNC TN1400 2000-001, 371 Pages, 2000/01

JNC-TN1400-2000-001.pdf:12.26MB

no abstracts in English

None

JNC TN1400 98-001, 256 Pages, 1998/11

JNC-TN1400-98-001.pdf:9.82MB

no abstracts in English

None

PNC TN1410 97-043, 167 Pages, 1997/11

PNC-TN1410-97-043.pdf:7.22MB

no abstracts in English

Severe accidents at nuclear power plants; Their risk assessment and accident management

Abe, Kiyoharu

JAERI-Review 95-006, 132 Pages, 1995/05

JAERI-Review-95-006.pdf:4.32MB

no abstracts in English

Development of seismic PSA methodology at JAERI

Muramatsu, Ken; ; Matsumoto, Kiyoshi; ; Kondo, Masaaki; *

The 3rd JSME/ASME Joint Int. Conf. on Nuclear Engineering, Vol. 3, 0, p.1333 - 1340, 1995/00

no abstracts in English

None

PNC TN8440 94-037, 111 Pages, 1994/06

PNC-TN8440-94-037.pdf:2.76MB

None