Analysis on lift-off experiment in Halden reactor by FEMAXI-6 code

Suzuki, Motoe; Kusagaya, Kazuyuki*; Saito, Hiroaki*; Fuketa, Toyoshi

Journal of Nuclear Materials, 335(3), p.417 - 424, 2004/12

https://doi.org/10.1016/j.jnucmat.2004.07.049

Experimental analysis was conducted on the Lift-Off experiment IFA-610.1 in Halden reactor by the FEMAXI-6 code using the detailed measured conditions of test-irradiation. Calculated fuel center temperatures on the two assumptions, i.e., (1) an enhanced thermal conductance across the pellet-clad bonding layer is maintained during the cladding creep-out by over-pressurization, and (2) the bonding layer is broken by the cladding creep-out, were compared with the measured data to analyze the effect of the creep-out by over-pressure inside the test pin. The measured center temperature rise was higher by a few tens of K than the prediction performed on the assumption (1), though this difference was much smaller than the predicted rise on the assumption (2). Therefore, it is appropriate to attribute the measured center temperature rise to the decrease of effective thermal conductance by irregular re-location of pellet fragments, etc. which was caused by cladding creep-out.

Light water reactor fuel analysis code FEMAXI-V(Ver.1)

Suzuki, Motoe

JAERI-Data/Code 2000-030, 280 Pages, 2000/09

JAERI-Data-Code-2000-030.pdf:11.06MB

no abstracts in English

Effect of eccentric pellet on gap conductance in fuel rod

; ; Hoshiya, Taiji

Journal of Nuclear Science and Technology, 28(10), p.961 - 964, 1991/10

https://doi.org/10.3327/jnst.28.961

no abstracts in English

Evaluation of parameters effect on the maximum fuel temperature in the core thermal hydraulic design of HTTR

Fujimoto, Nozomu; Maruyama, So; Fujii, Sadao*; Niguma, Yoshinoro*; Sudo, Yukio

JAERI-M 88-187, 79 Pages, 1988/10

JAERI-M-88-187.pdf:1.65MB

no abstracts in English

A Study on Gap Heat Transfer of LWR Fuel Rods under Reactivety Initiated Accident Conditions

JAERI-M 84-063, 166 Pages, 1984/03

JAERI-M-84-063.pdf:5.94MB

no abstracts in English

A LOCA Analysis of BWR/6 for the ROSA-III Test

*; ;

JAERI-M 8185, 120 Pages, 1979/03

JAERI-M-8185.pdf:2.47MB

no abstracts in English

FREG-3:A Computer Program to Predict Fuel-to-Cladding Heat Transfer Coefficients in Accordance with Fuel-Rod Irradiation History -Calculation Proccedure and Models-

;

JAERI-M 7278, 60 Pages, 1977/09

JAERI-M-7278.pdf:1.87MB

no abstracts in English

FREG-1; A Computer Program for Calculating the Gap Conductance in Oxide Fuel Pins

; ; ; ; ; ; *

JAERI-M 5958, 51 Pages, 1975/01

JAERI-M-5958.pdf:1.45MB

no abstracts in English