海域围填对某核电厂温排水输运影响研究

基于数学模型与物理模型的特点及其适用性,采用取排水局部水域物理模型与大范围海域二维数学模型相结合的方法,对某核电工程排水口附近区域有无围填区温排水的水力、热力特性变化规律进行了对比研究工作。研究结果表明:海域围填不会改变工程海域流场的总体特征,但会对核电厂排水附近的局部流场特性产生明显影响,与此相应的温排水输运轨迹、温度场分布特性等也会随之改变,进而可能对温排水环境影响以及电厂取水温升等产生负面影响。因此,对于电厂取排水工程附近海域围填问题需慎重处理,应通过模拟研究工作对围填方案影响加以研究论证。

Study on impact from sea reclamation on thermal effluent discharge from a nuclear power plant

Based on the characteristics and applicability of math model and physical model， a comparative study on the changing laws of the hydraulic and thermodynamic characteristics of the thermal effluent discharge in the area near the discharge outlet of a nuclear power plant is made with the method of combining both the physical model for the local water areas at the intake and outlet and the two-dimensional math model for a large range sea area. The study result shows that the general characteristics of the flow field of the sea area of the project cannot be changed by sea reclamation， however， the characteristics of the local flow field near the thermal effluent from the nuclear power plant can be obviously impacted by the reclamation， and then the corresponding thermal effluent discharge trail and the temperature field distribution characteristics are to be changed as well， from which the negative impacts on the environmental impact of the thermal effluent， the temperature rise of the water-intaking of the power plant， etc. are to be additionally generated. Therefore， the scheme of sea reclamation project near both the intake and outlet of the power plant is necessary to be carefully dealt with， while the relevant study and verification must made through the simulative study concerned.