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Title: Boiling Water Reactor Fuel Behavior Under Reactivity-Initiated-Accident Conditions at Burnup of 41 to 45 GWd/tonne U

Abstract

Boiling water reactor (BWR) fuel at burnup of 41 to 45 GWd/tonne U was pulse irradiated in the Nuclear Safety Research Reactor (NSRR) to investigate fuel behavior under cold startup reactivity-initiated-accident conditions. Current Japanese BWR fuel, 8 x 8BJ type (Step I), from Fukushima-Daiichi Unit 3 was refabricated into short segments, and the test rods were promptly subjected to thermal energy from 293 to 607 J/g (70 to 145 cal/g) within {approx}20 ms. The fuel cladding was ductile enough to survive the prompt deformation due to pellet cladding mechanical interaction, while the plastic hoop strain reached 1.5% at the peak location. Transient fission gas release by the pulse irradiation varied from 3.1 to 8.2%, depending on the peak fuel enthalpy and the steady-state operation conditions.

Authors:
 [1];  [1];  [2];  [2];  [1]
  1. Japan Atomic Energy Research Institute (Japan)
  2. Toshiba Corporation (Japan)
Publication Date:
OSTI Identifier:
20822128
Resource Type:
Journal Article
Journal Name:
Nuclear Technology
Additional Journal Information:
Journal Volume: 129; Journal Issue: 2; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0029-5450
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BURNUP; BWR TYPE REACTORS; DEFORMATION; ENTHALPY; FISSION PRODUCT RELEASE; FUELS; PULSED IRRADIATION; RADIATION PROTECTION; REACTIVITY; REACTOR ACCIDENTS; RESEARCH REACTORS; STEADY-STATE CONDITIONS

Citation Formats

Nakamura, Takehiko, Yoshinaga, Makio, Takahashi, Masato, Okonogi, Kazunari, and Ishijima, Kiyomi. Boiling Water Reactor Fuel Behavior Under Reactivity-Initiated-Accident Conditions at Burnup of 41 to 45 GWd/tonne U. United States: N. p., 2000. Web.
Nakamura, Takehiko, Yoshinaga, Makio, Takahashi, Masato, Okonogi, Kazunari, & Ishijima, Kiyomi. Boiling Water Reactor Fuel Behavior Under Reactivity-Initiated-Accident Conditions at Burnup of 41 to 45 GWd/tonne U. United States.
Nakamura, Takehiko, Yoshinaga, Makio, Takahashi, Masato, Okonogi, Kazunari, and Ishijima, Kiyomi. Tue . "Boiling Water Reactor Fuel Behavior Under Reactivity-Initiated-Accident Conditions at Burnup of 41 to 45 GWd/tonne U". United States.
@article{osti_20822128,
title = {Boiling Water Reactor Fuel Behavior Under Reactivity-Initiated-Accident Conditions at Burnup of 41 to 45 GWd/tonne U},
author = {Nakamura, Takehiko and Yoshinaga, Makio and Takahashi, Masato and Okonogi, Kazunari and Ishijima, Kiyomi},
abstractNote = {Boiling water reactor (BWR) fuel at burnup of 41 to 45 GWd/tonne U was pulse irradiated in the Nuclear Safety Research Reactor (NSRR) to investigate fuel behavior under cold startup reactivity-initiated-accident conditions. Current Japanese BWR fuel, 8 x 8BJ type (Step I), from Fukushima-Daiichi Unit 3 was refabricated into short segments, and the test rods were promptly subjected to thermal energy from 293 to 607 J/g (70 to 145 cal/g) within {approx}20 ms. The fuel cladding was ductile enough to survive the prompt deformation due to pellet cladding mechanical interaction, while the plastic hoop strain reached 1.5% at the peak location. Transient fission gas release by the pulse irradiation varied from 3.1 to 8.2%, depending on the peak fuel enthalpy and the steady-state operation conditions.},
doi = {},
journal = {Nuclear Technology},
issn = {0029-5450},
number = 2,
volume = 129,
place = {United States},
year = {2000},
month = {2}
}