摘要
基于内陆核电厂选址条件与对水环境的相关法律法规、行业标准和资料的研究,运用CFD(Fluent)软件,选用k-ε湍流模型与组份输运模型模拟某核电厂放射性液态流出物在P河扩散情况,并依据解析法预测模型计算P河下游1km浓度,两者进行对比分析。结果表明,数值模拟导出的结果在P河下游1 km处浓度均值约78.5 Bq/L,而依据解析法预测模型计算结果为P河下游1 km距岸边40 m处3H浓度为86.28 Bq/L;排放口下游1 km处完全满足法规及相关行业标准中的3H浓度小于100 Bq/L的规定,核电厂的放射性液态流出物经过1 km的不断稀释向下游扩散后的浓度对公众的影响较小,其浓度影响不是内陆核电厂选址的主要因素。研究结果对内陆核电厂的选址和工程设计工作提供技术参考。
Based on the site selection of inland nuclear power plant,through the study of relevant laws and regulations,industry standards and data of water environment,the diffusion of radioactive liquid effluent from a nuclear power plant in P River is simulated using CFD(Fluent)software,k-εturbulence model and component transport model.The 1 km concentration in the lower reaches of P River is calculated according to the analytical prediction model,and the two are compared and analyzed.The results show that the average concentration at 1km in the lower reaches of P River is about 78.5 bq/L,while the concentration of3H at 40 m from the bank of 1km in the lower reaches of P River is 86.28 bq/L according to the prediction model of analytical method.The concentration of3H in the downstream 1 km of the discharge outlet fully meets the regulations and relevant industry standards that the concentration of3H is less than 100 bq/L.The concentration of the radioactive liquid effluent from the nuclear power plant after being diluted and diffused downstream by 1 km has little impact on the public,and its concentration is not the main factor in the location of inland nuclear power plants.The research results provide technical reference for the location and engineering design of inland nuclear power plants.
出处
《科技创新与应用》
2022年第11期68-71,共4页
Technology Innovation and Application
关键词
内陆核电厂
水资源量
核素浓度扩散
受纳水体
模型预测
inland nuclear power plant
amount of water resources
nuclide concentration diffusion
receiving water body
model prediction
