Progress in Nuclear Energy

These papers are published by Wenzhen chen.

ONLINE FAULT MONITORING BASED ON DEEP NEURAL NETWORK & SLIDING WINDOW TECHNIQUE

Serpent input file with BOL and EOL material balance, as was used in the article.

A method is designed to predict the structure of corium pool bases on U-Zr-O-Fe thermo-chemical reactions (Salay theory) and takes into account the accident progressions calculated by severe accident codes. Especially, the formation of light metal layer is not hypothetical and the conditions for a three-layer pool formation are described in this method. The heat flux distributions on the outside of reactor vessel are also analyzed. It is found that, the structure and heat flux of corium pool obtained by this method are unique while they are various because of the compositions in light metal layer is user input in MAAP5 code. Although the thickest and thinnest light metal layer are obtained in MAAP5 code, based on which the conservative heat flux cannot be obtained due to the heat flux of light metal layer is not always inversely proportional to its thickness, and this is inconvenient for judging the validity of in-vessel retention (IVR) strategy.

UT data and mathematical processing of data

Burbable absober material optimization study results.

Results of calculations for the manuscript "Verification of the Current Coupling Collision Probability Method with Orthogonal Flux Expansion for the Assembly Calculations"

MOX fuel pin's raw data

A new spectral nodal method is proposed for coarse-mesh numerical solution of energy multigroup X,Y-geometry discrete ordinates (SN ) transport problems in non-multiplying media. This method uses the Response Matrix (RM) technique to solve analytically the multigroup one-dimensional transverse-integrated SN nodal equations with approximations only for the node-edge angular fluxes in the transverse leakage terms. We approximate these leakage terms by constants, hence we refer to the present spectral nodal method as the RM-Constant Nodal (RM-CN) method. We show in numerical calculations that the offered RM- CN method generates so accurate solutions as the companion spectral Green’s function-constant nodal (SGF-CN) method, whose mathematical preliminaries are essentially the same, except that the multigroup RM-CN algorithm is both algebraically and computationally simpler than the SGF-CN method.

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