TY - GEN
T1 - SUMMARY of the HISTORY of IMPROVEMENT and OPTIMIZATION of FUEL MANAGEMENT STRATEGIES for TWO 1000 MWE PWR UNITS
AU - Xiaoling, Zhou
AU - Zhixian, Xu
AU - Bingquan, Zhao
AU - Wen, Li
AU - Shengdong, Zhong
AU - Jinghui, Gao
N1 - Publisher Copyright:
© 2022 by ASME.
PY - 2022
Y1 - 2022
N2 - This paper takes a certain nuclear power plant (NPP) which consists of two 1000 MWe PWR units as the research object, and summarizes various fuel management strategies experienced since it started commercial operation in 2002 and 2003. These fuel management strategies include: 1) high-leakage annual refueling, refueling fuel enrichment is 3.2% and cycle length reaches about 270 EFPD; 2) fuel type mixed refueling (AFA2G and AFA3G mixed), refueling fuel enrichment increases from 3.2% to 3.7% and cycle length reaches about 320 EFPD; 3) low-leakage 1/4 refueling, refueling fuel enrichment increases from 3.7% to 4.2% and cycle length reaches about 316 EFPD that fuel economy has been greatly improved; 4) low-leakage 18-months refueling, refueling fuel enrichment increases from 4.2% to 4.45% and the refueling cycle has been extended from annual refueling to an average of 16 months; 5) two-enrichment refueling, refueling fuel enrichment is extended from single 4.45% to two enrichment 4.45% and 4.00%, which improves the flexibility of fuel management to well meet the load shedding needs. This paper reviews each fuel management strategy s general refueling pattern, main design parameters and actual operating parameters of the core, fuel economy and the feedback of related problems, finally further suggests a few optimizations of future fuel management strategies.
AB - This paper takes a certain nuclear power plant (NPP) which consists of two 1000 MWe PWR units as the research object, and summarizes various fuel management strategies experienced since it started commercial operation in 2002 and 2003. These fuel management strategies include: 1) high-leakage annual refueling, refueling fuel enrichment is 3.2% and cycle length reaches about 270 EFPD; 2) fuel type mixed refueling (AFA2G and AFA3G mixed), refueling fuel enrichment increases from 3.2% to 3.7% and cycle length reaches about 320 EFPD; 3) low-leakage 1/4 refueling, refueling fuel enrichment increases from 3.7% to 4.2% and cycle length reaches about 316 EFPD that fuel economy has been greatly improved; 4) low-leakage 18-months refueling, refueling fuel enrichment increases from 4.2% to 4.45% and the refueling cycle has been extended from annual refueling to an average of 16 months; 5) two-enrichment refueling, refueling fuel enrichment is extended from single 4.45% to two enrichment 4.45% and 4.00%, which improves the flexibility of fuel management to well meet the load shedding needs. This paper reviews each fuel management strategy s general refueling pattern, main design parameters and actual operating parameters of the core, fuel economy and the feedback of related problems, finally further suggests a few optimizations of future fuel management strategies.
KW - Fuel enrichment
KW - Fuel management strategy
KW - High-leakage refueling
KW - Low-leakage refueling
KW - Refueling cycle
UR - https://www.scopus.com/pages/publications/85143130246
U2 - 10.1115/ICONE29-92954
DO - 10.1115/ICONE29-92954
M3 - 会议稿件
AN - SCOPUS:85143130246
SN - 9784888982566
T3 - International Conference on Nuclear Engineering, Proceedings, ICONE
BT - Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology
PB - American Society of Mechanical Engineers (ASME)
T2 - 2022 29th International Conference on Nuclear Engineering, ICONE 2022
Y2 - 8 August 2022 through 12 August 2022
ER -