哈尔滨工程大学学报2024，Vol.45Issue(12)：2377-2383,7.DOI:10.11990/jheu.202307039
压水堆一回路含氨冷却剂辐射分解过程模拟
Radiolysis process simulation of coolant containing ammonia for pressurized water reactor's primary circuit
摘要
Abstract
A radiolysis model for coolant containing ammonia was developed to investigate ammonia injection,which inhibits the oxidizing products generated in coolant radiolysis in pressurized water reactors.The effects of temperature,initial ammonia concentration,and dissolved oxygen concentration on the radiolysis behavior of ammo-nia-containing coolant were investigated using this model.Results show that as temperature increases,ammonia de-composition slows significantly,thereby decreasing H2 concentration.Higher initial ammonia concentrations pro-mote ammonia decomposition but reduce its decomposition ratio.Meanwhile,the H2 generated during radiolysis ex-hibits a linear relationship with the degree of ammonia decomposition.The maximum relative error of the model was less than 20%of the experimental results.The radiolysis process is notably intensified in systems containing dis-solved oxygen,resulting in a decrease in H2 concentration.The ammonia loss ratio in an oxygen-free ammonia solu-tion is 45.5%,compared with 57.9%in an aerobic system.This study provides valuable insights for optimizing ammonia-containing coolants in the new reactor design.关键词
氨/辐射分解/数学模型/冷却剂/结构材料/腐蚀/氢气/一回路Key words
ammonia/radiolysis/mathematical model/coolant/structural material/corrosion/hydrogen/primary circuit分类
能源科技引用本文复制引用
张扬,郭子方,刘春雨,李一帆,杜香怡,林铭章..压水堆一回路含氨冷却剂辐射分解过程模拟[J].哈尔滨工程大学学报,2024,45(12):2377-2383,7.基金项目
国家自然科学基金联合基金项目(U2241289). （U2241289）
