Proceedings of the Korean Nuclear Society Conference (한국원자력학회:학술대회논문집)
- 1996.05a
- /
- Pages.148-153
- /
- 1996
A New Approach to Treating Baffle/Reflector Heterogeneity in AFEN Methodology
-
Cho, Nam-Zin
(Korea Advanced Institute of Science and Technology Department of Nuclear Engineering) ;
- Kim, Do-Sam (Korea Advanced Institute of Science and Technology Department of Nuclear Engineering) ;
- Kim, Yong-Hee (Korea Advanced Institute of Science and Technology Department of Nuclear Engineering)
- Published : 1996.05.01
Abstract
In this paper, an effective method for resolving difficulty resulting from the heterogeneity of the PWR baffle/reflector region is developed on the basis of the AFEN method. The essential difference of the new method from the conventional approach based on the equivalence theory is that the heterogeneous baffle/reflector is directly, without homogenization, considered as a node in nodal calculation Numerical results show that AFEN method with the new method can accurately predict both the multiplication factor and the power distribution of thermal reactors with baffle explicitly modeled.
Keywords