SEVERE ACCIDENT ANALYSIS PROJECTS

(Mostly with MAAP codes (versions 3 to 5 inclusive))

Severe Accident Analysis projects to develop functional requirements for severe accident mitigation systems, including filtered venting and hydrogen control in PWRs:

Krsko (Slovenia),
Koeberg (South Africa),
Maanshan (Taiwan),
Angra (Brazil),
Asco and Vandellos (Spain),
APR1400 (Korea)
Day Bay (China).

Severe Accident Analysis to support plant specific PSAs:

Best estimate success criteria,
Containment behavior and challenges (PDS analysis)
Source Term analysis.

Severe Accident Analysis to support Accident Management Program development:

Strategy verification,
Setpoint evaluations,
Preparation of Exercises and Drills.

Severe accident hydrogen distribution and combustion analyses:

Beznau (Switzerland),
Koeberg (South Africa),
Ringhals (Sweden),
Neckarwestheim 2 (Germany).

VVER-440 Analyses and Development Effort including Kozloduy WANO programs, backfit concept design for Bohunice, participation in development of MAAP/VVER code, PHARE projects.

Implementation of severe accident analysis and transfer of technology for European customers (EDF, Vandellos).

International:

Major international European Community funded projects under the PHARE program (93/4.2.7a and 2.06/94 and 2.07/94). Analysis of severe accident behaviour in VVER reactors, and the establishment of a severe accident management program at three Eastern European plant sites.
IAEA: Co-author of Safety Reports and Guides (e.g., Safety Report Series No. 56, “Approaches and Tools for Severe Accident Analysis for Nuclear Power Plants”).