Analysis by hazard plotting on steam generator tube leak in sodium-cooled fast reactors Phenix and BN600

Kurisaka, Kenichi

Proceedings of 30th International Conference on Nuclear Engineering (ICONE30) (Internet), 10 Pages, 2023/05

This study aims to understand a time trend of the occurrence rate of steam generator (SG) tube leak in the existing sodium-cooled fast reactors (SFRs) based on the observed data. The target on SFRs in the present paper is Phenix in France and BN600 in Russia. From the open literature review, we investigated the number of tube-to-tube plate weld, the number of tube-to-tube weld, heat transfer area of tube base metal, operating time of SGs, dates when SG tube leak occurred, leaked location, corrective action after tube leak such as replacement of leaked module. Based on these observed data, time to leak is estimated and then time trend of the occurrence rate of SG tube leak for each of the above-mentioned parts was quantitatively analyzed by the hazard plotting method. As a result, the rate of leak at tube-to-tube weld in Phenix shows increase with time due to probable cause of cyclic thermal stress in a short term. As for a long-term trend, the rate of tube leak in both Phenix and BN600 SGs indicated decrease with time probably thanks to improvement in welding and in SG operating condition and to removal of initial failure.

INTERF; The Reaction rates and spectra editing code for analysis of fusion neutronics experiments

Kosako, Kazuaki*

JAERI-M 90-199, 114 Pages, 1990/11

JAERI-M-90-199.pdf:2.79MB

no abstracts in English

RLP5SPL:A Conversion Program from RELAP5 Output Data to SPL Forment Data

; ; *;

JAERI-M 84-016, 17 Pages, 1984/02

JAERI-M-84-016.pdf:0.42MB

no abstracts in English

Users Manual for SPLPACK-1 : A Program Package for Editing and Plotting Experimental and Analytical Data of Various Transient Phenomena

; ; ; ; *; *; *

JAERI-M 83-166, 159 Pages, 1983/11

JAERI-M-83-166.pdf:3.91MB

no abstracts in English

Graphical representation of transmutation and decay chain data,transmutation cross section and delayed gamma ray emission data

; ; *

JAERI 1280, 251 Pages, 1982/09

JAERI-1280.pdf:4.74MB

no abstracts in English

SPLINT; A Computer Code for Superimposed Plotting of Experimental Data and Evaluated Data

Narita, Tsutomu; ; Nakagawa, Tsuneo; *

JAERI-M 5769, 24 Pages, 1974/07

JAERI-M-5769.pdf:0.92MB

no abstracts in English