Numerical and experimental model studies on thermal hydraulic behavior of FBR internal core catcher assembly

Sanjay Kumar Das, Anil Kumar Sharma, A. Jasmin Sudha, G. Punitha, G. Lydia, P. A. Somayajulu, S. S. Murthy, B. Malarvizhi, V. Gopalakrishnan, J. Harvey, N. Kasinathan, M. Rajan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Core Catcher is provided as an in-vessel core debris retention device to collect, support, cool and maintain in sub-critical configuration, the generated core debris from fuel melting due to certain postulated Beyond Design Basis Events (BDBE) for Fast Breeder Reactor (FBR). This also acts as a barrier to prevent settling of debris on main vessel and keeps its maximum temperature within acceptable creep range. Heat transfer by natural convection in the core catcher assembly has been assessed numerically and through water experiments using geometrically similar configuration. Resistive heating elements are used in experiment as heat source to simulate debris decay heat on core catcher. Series of experiments were carried out for two configurations referred as geometry A and geometry B. The later configuration showed enhanced natural convective heat transfer from the lower plenum of the vessel. Temperatures were monitored at critical positions and compared with numerical evaluation. Numerically evaluated flow fields and isotherms are compared with experimental data for specific steady state temperatures on heat source plate. Numerical results are found to be in good agreement with that obtained from experiments. The combined efforts of numerical and experimental work conclude core catcher assembly with geometry B to be more suitable.

Original languageEnglish
Title of host publicationFourteenth International Conference on Nuclear Engineering 2006, ICONE 14
Volume2006
DOIs
Publication statusPublished - 2006
EventFourteenth International Conference on Nuclear Engineering 2006, ICONE 14 - Miami, FL, United States
Duration: 17-07-200620-07-2006

Conference

ConferenceFourteenth International Conference on Nuclear Engineering 2006, ICONE 14
CountryUnited States
CityMiami, FL
Period17-07-0620-07-06

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

Cite this

Das, S. K., Sharma, A. K., Jasmin Sudha, A., Punitha, G., Lydia, G., Somayajulu, P. A., ... Rajan, M. (2006). Numerical and experimental model studies on thermal hydraulic behavior of FBR internal core catcher assembly. In Fourteenth International Conference on Nuclear Engineering 2006, ICONE 14 (Vol. 2006) https://doi.org/10.1115/ICONE14-89406