## Abstract

We have developed a calculation code system HIDEC-ALLIS for an assembly design of BWR. HIDEC performs the assembly calculation. ALLIS supplies the assembly constants library (HIDEC-ALLIS library) for the core calculation. The comparison between the results of HIDEC-ALLIS and CASMO code was carried out. The difference of k-infinity was small at BOL (0GWd/t). At MOL and EOL (50GWd/t), the difference of the k-infinity between HIDEC and CASMO code slightly increased with the burn-up exposure. The comparison of the assembly constants such as the diffusion coefficient and the removal cross-section shows that HIDEC-ALLIS and CASMO code agreed within several percent. A core calculation was performed by using SIMULATE code. The k-effective agreed well between HIDEC-ALLIS and CASMO code. From those verification results, it is considered that HIDEC-ALLIS is valid and useful for the BWR assembly calculation, considering the difference of the nuclear data library, JENDL3.3 for HIDEC-ALLLIS and the original library of CASMO. It is remarked that more comparison are required for verifying HIDEC-ALLIS.

Original language | English |
---|---|

Title of host publication | American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009 |

Pages | 2838-2848 |

Number of pages | 11 |

Volume | 5 |

Publication status | Published - 2009 Dec 1 |

Event | International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009 - Saratoga Springs, NY, United States Duration: 2009 May 3 → 2009 May 7 |

### Other

Other | International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009 |
---|---|

Country/Territory | United States |

City | Saratoga Springs, NY |

Period | 09/5/3 → 09/5/7 |

## Keywords

- Assembly calculation
- Assembly constants
- BWR
- Monte Carlo method

## ASJC Scopus subject areas

- Nuclear Energy and Engineering
- Computational Mathematics
- Nuclear and High Energy Physics