A Critical Heat Generation for Safe Nuclear Fuels after a LOCA
Joint Authors
Kim, Jae-Yong
Kim, Dong-Bock
Cho, Hee-Jeong
Kwon, Young-Doo
Kwon, Soon-Bum
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-18
Country of Publication
Egypt
No. of Pages
8
Abstract EN
This study applies a thermo-elasto-plastic-creep finite element procedure to the analysis of an accidental behavior of nuclear fuel as well as normal behavior.
The result will be used as basic data for the robust design of nuclear power plant and fuels.
We extended the range of mechanical strain from small or medium to large adopting the Hencky logarithmic strain measure in addition to the Green-Lagrange strain and Almansi strain measures, for the possible large strain situation in accidental environments.
We found that there is a critical heat generation after LOCA without ECCS (event category 5), under which the cladding of fuel sustains the internal pressure and temperature for the time being for the rescue of the power plant.
With the heat generation above the critical value caused by malfunctioning of the control rods, the stiffness of cladding becomes zero due to the softening by high temperature.
The weak position of cladding along the length continuously bulges radially to burst and to discharge radioactive substances.
This kind of cases should be avoid by any means.
American Psychological Association (APA)
Kim, Jae-Yong& Kim, Dong-Bock& Cho, Hee-Jeong& Kwon, Soon-Bum& Kwon, Young-Doo. 2014. A Critical Heat Generation for Safe Nuclear Fuels after a LOCA. Science and Technology of Nuclear Installations،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1047725
Modern Language Association (MLA)
Kim, Jae-Yong…[et al.]. A Critical Heat Generation for Safe Nuclear Fuels after a LOCA. Science and Technology of Nuclear Installations No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1047725
American Medical Association (AMA)
Kim, Jae-Yong& Kim, Dong-Bock& Cho, Hee-Jeong& Kwon, Soon-Bum& Kwon, Young-Doo. A Critical Heat Generation for Safe Nuclear Fuels after a LOCA. Science and Technology of Nuclear Installations. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1047725
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047725