Results 201 to 210 of about 1,105 (245)

Technology Development of Core Catcher for Indian Advanced Nuclear Reactors

Transactions of the Indian National Academy of Engineering, 2021
Considering the carbon footprint and demand for electricity for a growing population of India, nuclear energy has to play a major role in the energy mix. Currently, India produces just around 3% of electricity from nuclear in the energy mix, which has to multiply by several folds in near future.
A. K. Nayak, P. P. Kulkarni
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Simulant melt experiments on performance of the in-vessel core catcher

Nuclear Engineering and Design, 2007
Abstract In order to enhance the feasibility of in-vessel retention (IVR) of molten core material during a severe accident for high-power reactors, an in-vessel core catcher (IVCC) was designed and evaluated as part of a joint United States-Korean International Nuclear Energy Research Initiative (INERI).
Kyoung-Ho Kang, Rae-Joon Park, Sang-Baik Kim, K.Y. Suh, F.B. Cheung, J.L. Rempe   +5 more
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Heat Removal Capability of Core-Catcher With Natural Circulation

Volume 6: Beyond Design Basis Events; Student Paper Competition, 2013
Toshiba has developed a core-catcher system. It is to be installed at the bottom of the lower drywell in order to stabilize a molten core flowing down from a reactor vessel. It consists of a round basin made up of inclined cooling channels arranged axisymmetrically, and the structure including risers, downcomers and a water chamber to get natural ...
Tomohisa Kurita, Toshimi Tobimatsu, Mika Tahara, Kazuyoshi Aoki, Yoshihiro Kojima   +4 more
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Comparison Between Direct- and Indirect-Cooling Core Catchers

Transactions of the Korean Society of Mechanical Engineers B, 2012
The European nuclear design requirements, which should be satisfied by nuclear reactors in Europe, usually recommend a so-called core catcher, which is a molten core ex-vessel cooling facility, to manage a severe accident at a nuclear reactor. Two different types of core catcher concepts are compared to determine their abilities to manage severe ...
Jung-Soo Suh, Jong-Ho Lee, Byung-Hwan Bae   +2 more
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Numerical analysis of core catcher efficiency for VVER-1200

Physics of Atomic Nuclei, 2011
A brief description of the HEFEST-ULR code and numerical results for corium behavior in a core catcher for the VVER-1200 (NPP-2006 project) are presented. Physical, chemical, and thermal processes during corium pool formation and cooling in the core catcher are examined for the case of severe accidents in NPP-2006 with the VVER-1200.
Yu. A. Zvonarev, D. F. Tsurikov, V. L. Kobzar, A. M. Volchek, N. P. Kiselev, V. F. Strizhov, A. S. Filippov, E. V. Moiseenko   +7 more
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Mitigation of a Core Meltdown Scenario by Means of a Core Catcher Located Inside the Reactor Pressure Vessel

12th International Conference on Nuclear Engineering, Volume 3, 2004
This paper describes an original solution of core catcher to managing the in vessel retention of the Corium in the accidental event of the core meltdown. The solution envisaged intends to verify the possibility of managing the accidental event within the pressure vessel, ensuring that the CORIUM is confined and cooled.
AQUARO, DONATO, ZACCARI N.
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An improved core catcher for the Kiel box corer (“Kastenlot”)

Marine Geology, 1973
Abstract The optimum efficiency of the Kiel box corer (“Kastenlot”) is dependent upon certain mechanical properties of the sediments. To avoid this limitation, a new core catcher was constructed and has been tested for several years in both shallow and deep-water sediments.
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Experimental simulation of fragmentation and stratification of core debris on the core catcher of a fast breeder reactor

Nuclear Engineering and Design, 2016
Abstract The complex and coupled phenomena of two simultaneous molten metal jets fragmenting inside a quiescent liquid pool and settling on a collector plate are experimentally analysed in the context of safety analysis of a fast breeder reactor (FBR) in the post accident heat removal phase.
Dipin S. Pillai, R. Vignesh, A. Jasmin Sudha, S. Pushpavanam, T. Sundararajan, B.K. Nashine, P. Selvaraj   +6 more
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Experiments on Performance of the Multi-Layered In-Vessel Core Catcher

12th International Conference on Nuclear Engineering, Volume 3, 2004
LAVA-GAP experiments are in progress to investigate the performance of the in-vessel core catcher using alumina melt as a corium simulant. The hemispherical in-vessel core catcher made of carbon steel was installed inside the lower head vessel with a uniform gap of 10mm. Until now, two types of the in-vessel core catcher were used in this study.
Kyoung-Ho Kang, Rae-Joon Park, Sang-Baik Kim, K. Y. Suh, F. B. Cheung, J. L. Rempe   +5 more
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Titanate Composites for Core Catcher Donor Material in a Nuclear Reactor

Glass and Ceramics, 2003
Composites based on titanates compositions have been selected and tested. A technology for their production is proposed using high-alumina cement. Estimate of some of their properties is supplied making it possible to use these composites as donor materials in a reactor core catcher.
F. A. Akopov, L. B. Borovkova, A. S. Vlasov, A. Yu. Vorob'ev, V. N. Mineev, V. A. Petrov   +5 more
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