On November 13, CNNC nuclear fuel and data research and development center held a review meeting on the key project supervision and inspection nodes in 2019 to review the optimization of FeCrAl clad pipe preparation process in the "nuclear power accident resistant fuel discussion" project of CNNC research and Design Institute. The expert group at the meeting agreed that the optimization route of FeCrAl clad pipe preparation process independently developed by NPI is reasonable and feasible, which has completed the process optimization work at this stage and reached the reservation requirements. CNNC science and technology quality and information technology department attended the meeting.
FeCrAl based alloy is one of the most potential cladding materials in the accident resistant fuel cladding, and it is one of the primary development directions of the accident resistant fuel cladding materials. With the support of science and Engineering Bureau and CNNC group, Nuclear Power Institute carried out a lot of research and Discussion on FeCrAl cladding data, broke many technical difficulties, completed multi-component selection, obtained full-size cladding pipe samples, obtained key external functional data, prepared full-size cladding pipe for the first time in China, completed the research and development of small batch cladding pipe with certain process representativeness The periodic research results are obtained and the short rod irradiation detection is being carried out.
FeCrAl cladding pipe preparation process optimization research work has strongly supported the follow-up research work related to accident resistant fuel in China, and laid a solid foundation for China to break the foreign skill blockade and improve the independent innovation level of nuclear fuel element research and development. Independent research and development of accident resistant fuel and cladding data is of great significance to effectively promote the leapfrog and sustainable development of China's nuclear fuel industry and improve the safety function of China's nuclear power plants.
It is understood that NPRI will try its best to break the engineering application skills of FeCrAl cladding data in the later stage of technology, focus on the improvement of FeCrAl cladding data execution function index, and make greater contribution to the research and development of advanced nuclear fuel and the building of a nuclear power in China.
