A comprehensive performance evaluation method for a small lead-based reactor supercritical carbon dioxide cycle power generation system

Abstract

A comprehensive performance evaluation method for a small lead-based reactor supercritical carbon dioxide cycle power generation system. First, determine the lead-based reactor supercritical carbon dioxide (S‑CO2) to be designed 2 ) The basic operating parameters of the cycle power generation system. Subsequently, the sub-modules of turbomachinery work, heat transfer of heat exchanger, pressure drop calculation of heat exchanger, efficiency calculation of heat exchanger, thermal analysis of power generation system and economic analysis were respectively established by adopting the modular design method. Then, the iterative calculation method is used to solve the heat exchanger pressure drop calculation and power generation system thermodynamic analysis sub-modules to obtain the power generation system thermal parameters and unit power cost. Finally, the thermal-economy of the power generation system is evaluated based on multi-objective collaborative optimization. This method can effectively complete the new small lead-based reactor S-CO 2 Design of thermodynamics, heat transfer and economic analysis model of cycle power generation system, efficiently analyze system thermal-economic performance, solve system automatic design problems, complete comprehensive performance comparison and guide optimal S-CO 2 Screening in circular form.

Description

technical field [0001] The invention relates to the technical field of fourth-generation nuclear energy utilization, in particular to a comprehensive performance evaluation method for a small-scale lead-based reactor supercritical carbon dioxide cycle power generation system. Background technique [0002] Lead-based reactors (referred to as lead-based reactors) refer to nuclear fission or nuclear fusion reactors that use lead-based materials such as lead or lead-bismuth alloys as coolants. They are one of the main reactor types of the fourth-generation nuclear energy system. The Nuclear Energy System International Forum (GIF)" organization assessed it as the first generation IV nuclear reactor that is expected to achieve industrial demonstration and commercial application. In order to realize the efficient heat-to-electricity conversion of nuclear energy in lead-based reactors, it is imperative to seek an efficient and economical power cycle form to replace the traditional s...

AI Technical Summary

Problems solved by technology

But S-CO 2 There are various forms of circulation, and the optimal circulation form suitable for lead-based reactor power generation systems has not been screened out, and there is a lack of lead-based reactor S-CO 2 Comprehensive performance evaluation method and criterion of cycle power generation system, and lead-based reactor S-CO 2 The design and performance evaluation of cycle power generation system is inefficient, and the calculation accuracy is insufficient.

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