Notice of RetractionReliability improvement of nuclear-used seal auxiliary system with redundancy at the conceptual design stage by RBD Modeling

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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For a nuclear-used system, reliability is one of the basic technique requirements for the safety of a nuclear plant. However, how to design a nuclear-used system at the conceptual stage with high reliability is not a straightforward task because of serious lack of information, such as detailed system performance parameters, exhaustive understanding of system external load, accurate failure rate and distribution of specific component failure mode and so on. In this paper, several useful and applicable rules for improving the system reliability are firstly presented and then applied to the design of nuclear-used seal auxiliary system with redundancy at the conceptual design stage by RBD Modeling. Numerical simulation of the system reliability design is arranged to show its reliability improvement. Model built to solve such problem embraces the construction of fault-tree to properly cover effects of measuring instruments and switches in a redundancy, which traditional RBD model usually neglected.