Title :
ITER environmental source term assessment for some reference accident sequences
Author :
Cambi, G. ; Pace, LDi ; Cepraga, D.G. ; Porfiri, M.T.
Author_Institution :
Dipt. di Fisica, Bologna Univ., Italy
Abstract :
The paper presents the environmental source term EST evaluation for two ITER reference accident sequence related to the divertor primary heat transfer system. An ex-vessel LOCA and a pump seizure have been considered as initiating events. The thermal-hydraulic transient analysis and the containment response to the accident have been assessed using the Athena and Intra codes while the Naua Mod 5M code has been considered for aerosol transport to the environment. Ground and stack releases are evaluated, both for tritium and activated materials
Keywords :
accidents; aerosols; fusion reactor safety; nuclear engineering computing; pumps; Athena code; ITER; Intra code; LOCA; Naua Mod 5M code; T; activated materials; aerosol transport; containment response; divertor primary heat transfer system; environmental source term assessment; ex-vessel LOCA; ground release; pump seizure; reference accident sequences; stack release; thermal-hydraulic transient analysis; tritium; Accidents; Aerosols; Coolants; Cooling; Heat pumps; Heat transfer; Inductors; Performance analysis; Safety; Steady-state;
Conference_Titel :
Fusion Engineering, 1997. 17th IEEE/NPSS Symposium
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4226-7
DOI :
10.1109/FUSION.1997.687015
