The Optimization Of Start-Up Physics Tests Of Qinshan Nuclear Power Plant Phase II

Start-up nuclear physical test in nuclear power plant is a series of large-scale, comprehensive tests, and is a long-term and essential element. So it is greatly concerned by both the National Nuclear Safety Administration and the plant.With the development in recent years, a relatively systematic physical start-up project has formed in international community, and many new test methods have been developed. However, we, now in our country, are still lack of a clear project of the regulations of the minimum items and contents. At the same time, the methods we are using now are outdated, although they can meet the demands, the trial processes are relatively complicated and time-consuming comparatively. Under the circumstance that nowadays the NPPs gradually take account of the economic benefits, as stand-alone capacity of nuclear power generating units is quite large, from the point of view to increase the unit load factor, the optimization of the physical tests is very urgent and is of profound significance.Therefore, this paper tries to research from three aspects of the confirmation of test contents, physical test optimization and test data processing optimization, and seek a set of suitable project of start-up physical tests and test methods suiting for domestic commercial NPPs, on the basis of the foreign research experiences and fully taking into account the existing domestic technological level and design software. Therefore, we can improve the economy of the operation of the nuclear power plants and enhance the competitiveness of nuclear power plants, after meeting the requirements of nuclear safety regulations and the safety and stableness requirements of NPPs.