Because of heterogeneity of sub-channels geometry, a circumferential temperature distribution will exit in the fuel cladding surface during operating condition of a nuclear reactor, which will increase the maximum cladding surface temperature (MCST). However, this phenomenon cannot be obtained in single channel or sub-channel analyses approach. Computational Fluid Dynamics (CFD) is a good method to study this problem. In this paper, the circumferential temperature distribution on the fuel cladding surface of different sub-channels of China Lead-Alloy Cooled Research Reactor (CLEAR-I) were studied using FLUENT 14.0. Obvious circumferential temperature distributions were presented in results and the maximum circumferential temperature difference is 13°C in edge-channels. This study will improve the precision in the MCST calculation of CLEAR-I and be a good guideline to the optimum design of CLEAR-I sub-channels configurations.
- Nuclear Engineering Division
CFD Analysis of Circumferential Temperature Distribution on Fuel Cladding Surface of China Lead Alloy Cooled Research Reactor (CLEAR-I)
Chen, Z, Zhou, G, Zhou, T, Chen, H, & Bai, Y. "CFD Analysis of Circumferential Temperature Distribution on Fuel Cladding Surface of China Lead Alloy Cooled Research Reactor (CLEAR-I)." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes. Chengdu, China. July 29–August 2, 2013. V003T10A031. ASME. https://doi.org/10.1115/ICONE21-15917
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