A Design Method for Balanced Circulation Core of Supercritical Water Cooled Reactor

Abstract

The invention discloses a design method for a balance cycle reactor core of a supercritical water-cooled reactor. According to the design method, key design processes are subjected to discrete decomposition and then are subjected to matching and iteration configuration with one another according to a coupling closing degree and an intensity degree of a coupling effect, thereby forming closely-linked nonlinear iteration processes, so that a higher-performance design scheme for the balance cycle reactor core of the supercritical water-cooled reactor can be obtained; and the design accuracy and the design performance of the balance cycle reactor core of the supercritical water-cooled reactor are high, and the design scheme is relatively complete.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactor core design, and in particular relates to a design method for a balanced circulation core of a supercritical water-cooled reactor. Background technique [0002] The supercritical water-cooled reactor is one of the most promising generation IV nuclear energy systems, which has outstanding advantages such as high thermal efficiency of the unit and simplified system. Compared with traditional pressurized water reactors, supercritical water-cooled reactors have a large core inlet and outlet temperature difference (500°C / 280°C), which makes them have strong physical and thermal coupling effects, and rely entirely on control rods and combustible poisons for backup reactivity Control and reactivity loss compensation, as well as design criteria such as maximum fuel cladding temperature, maximum linear power density, and rod sticking criteria, also need to be met, which greatly increases the diffic...

AI Technical Summary

Problems solved by technology

At present, there are very few design schemes for supercritical water-cooled reactor balanced circulation core in the world. The main reason is that the design process is complicated, and there is no relatively simple, effective and accurate supercritical water-cooled reactor balanced circulation core design method.

[0003] To sum up, at present, there is no relatively perfect and accurate design method for supercritical water-cooled reactor balanced circulation core at home and abroad. Therefore, it is necessary to propose a functional A more perfect, more simple and effective calculation process, and a more accurate balanced cycle core design method

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