Single Assembly Pin-by-Pin Homogenization Model for Handling Axial 3D Heterogeneity Effect

Lyu Dong; Yu Lulin; Han Yu; Wang Dezhong

doi:10.13832/j.jnpe.2014.S2.0140

Volume 35 Issue S2

Feb. 2025

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Lyu Dong, Yu Lulin, Han Yu, Wang Dezhong. Single Assembly Pin-by-Pin Homogenization Model for Handling Axial 3D Heterogeneity Effect[J]. Nuclear Power Engineering, 2014, 35(S2): 140-142. doi: 10.13832/j.jnpe.2014.S2.0140

Citation:

Lyu Dong, Yu Lulin, Han Yu, Wang Dezhong. Single Assembly Pin-by-Pin Homogenization Model for Handling Axial 3D Heterogeneity Effect[J]. Nuclear Power Engineering, 2014, 35(S2): 140-142. doi: 10.13832/j.jnpe.2014.S2.0140

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Single Assembly Pin-by-Pin Homogenization Model for Handling Axial 3D Heterogeneity Effect

doi: 10.13832/j.jnpe.2014.S2.0140

School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China

Received Date: 2014-10-27
Rev Recd Date: 2014-12-10

Available Online: 2025-02-15

Abstract

Abstract

Traditional and advanced homogenization model based on single assembly and color-set/full core transport solution can not represent the axial heterogeneity of Light Water Reactor（LWR）. The paper proposed a new 3D homogenization model based on the single assembly pin-by-pin solution to provide the coarse mesh parameters for 3D nodal calculation. Numerical result from BWR mini-core benchmark shows that the 3D effect on core axial power distribution can be reproduced accurately.
- 3D homogenization method,
- Single assembly pin-by-pin model,
- Axial discontinuity factor