Recent advances in accurate neutronic calculation of GEN-3 LWR reactors
详细信息 查看全文
- 作者：A. Santamarina ; alain.santamarina@cea.fr" class="auth_mail" title="E-mail the corresponding author ; D. Bernard ; P. Blaise ; P. Leconte ; C. Vaglio ; J.-F. Vidal
- 关键词：PWR ; GEN-III ; APOLLO2 ; EOLE reactor ; Uncertainty calculation
- 刊名：Annals of Nuclear Energy
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：87
- 期：part_P1
- 页码：68-75
- 全文大小：2101 K
文摘
- •
To overcome GEN-3 calculation challenges, CEA has developed a new code package APOLLO2.8 based on JEFF3.1.1 library.
- •
The Method of Characteristics allows exact-2D heterogeneous geometry calculations, and the new SHEM 281-group energy mesh enables accurate resonant absorption prediction.
- •
We design specific experiments in CEA reactors such as PERLE experiment in EOLE that allows the reduction of the 56Fe uncertainty component below 1.2%.
- •
The challenging calculation of pin-by-pin power in large GEN-3 reactors is overcome, and 3D-stochastic TRIPOLI4/JEFF3.1.1 or 2D-deterministic APOLLO2.8 calculation uncertainty is decreased from prior ±8% to current ±2.6% value.