Project Report

Deterministic Safety Technology for RBMK Reactors

Table 1

Transient scenarios relevant to RBMK safety and design that are reference for the project and correspondence with adopted code or chain of codes.

Class no.Identification Reference accidents for
the RBMK accident analysis

A ESF & ECCS designKORSAR RELAP5A1 LOCA-PH-FIGDH
A2 LOCA-SL
A3 LOOP-ATWS
A4 GDH-BLOCKAGE

B Confinement (RC, ALS, and RB)KORSAR, COCOSYS      CONTAIN, RELAP5B1 GDH-BLOCKAGE-SA
B2 LOCA-PH-FIGDH
B3 LOCA-SL

C3D UNK, BARS, KORSAR  HELIOS, RELAP5-3D, NESTLEC1 FC-BLOCKAGE
C2 GDH-BLOCKAGE
C3 CR-G-WITHDRAWAL
C4 CPS-LOCA

DPT rupture and MPTRRAPTA, STAR-CD, KATRAN,D1 FC-BLOCKAGE
U-STACK FRAP, FLUENT, RELAPS, ANSYSD2 FC-LOCA

EFP generation and transportVICTORIA, COCOSYS MELCORE1 FC-BLOCKAGE
E2 GDH-BLOCKAGE-SA

FICM proposalRELAP5F1 FC-BLOCKAGE

+The codes used at NIKIET are reported in bold characters.
The coupled 3D NK-TH codes require derivation of proper cross-sections (or functions). The codes needed for this are also listed.