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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
Joint NEA project performs high-burnup test
An article in the OECD Nuclear Energy Agency’s July news bulletin noted that a first test has been completed for the High Burnup Experiments in Reactivity Initiated Accident (HERA) project. The project aim is to understand the performance of light water reactor fuel at high burnup under reactivity-initiated accidents (RIA).
Jau-Tyne Yeh, Ta-Lun Sung, J. Y. Shiue
Nuclear Technology | Volume 156 | Number 2 | November 2006 | Pages 125-132
Technical Paper | Fission Reactors | doi.org/10.13182/NT06-A3778
Articles are hosted by Taylor and Francis Online.
A tool, AFDCONTROL, is developed to help the operators of pressurized water reactors predict axial flux difference (AFD) and find the control rod positions for power maneuvers. AFDCONTROL has used an off-line procedure to simulate AFD.After adopting a long-cycle strategy as the fuel management policy of Maanshan nuclear power plant (MNPP), AFD control during the power reduction near end of cycle (EOC) becomes more difficult than before. In this study, we have used AFDCONTROL to simulate this trend. AFDCONTROL suggests that AFD (even at higher burnup conditions) can be controlled by extending the power reduction rate. After implantation of the AFDCONTROL tool in MNPP, the operators of MNPP units have used AFDCONTROL to find the control rod sequences and positions under certain power reduction rates to control AFD without violating limits, especially at EOC of the high-burnup cycle.
