Study & Implementation of Mixied Core & Increased Enrichment in Ling’ao Nuclear Power Station

The first cycles of Ling’ao and Daya Bay Nuclear Power Stations are the same.It is the challenge for Ling’ao NPS to design the fuel management mode and how to utilize the successful experiences from Daya Bay NPS.The fuel management design for the second cycle is rather difficult in normal conditions.There must be clear answers to the questions that whether or not to change the fuel type from the second cycle and which type of fuel to be used for the change(AFA 3G with or without MSMG).If the same fuel type of AFA 3G with MSMG in Daya Bay NPS would be used in Ling’ao second cycle,it would be the mixed core and there should be special safety analysis and licensing issues.This paper introduces the overall optimization and design from cycle 2 to 5.