论文部分内容阅读
余热排出实验共获得１６６组稳态实验数据．数据表明，在本参数范围内，当气温为６－２３℃、冷热芯高差１１ｍ时，只要风速不小于１．５ｍ／ｓ，即可通过自然循环流动带走堆芯衰变功率．风速、功率和阀门开度的快速变化扰动对系统的稳定运行无大的影响，即系统运行对这些快速小扰动有一定的“容忍性”．通过引入系统特征参数建立了分析模型，本文得出含经验系数的自然循环流量等半经验公式．与实验数据比较，９８．８％的数据点偏差小于±１５％．
Residual heat removal experiment obtained a total of 166 steady-state experimental data. The data shows that within the range of this parameter, when the temperature is 6-23 ℃ and the height difference between hot and cold cores is 11m, the core decay power can be taken away by natural circulation as long as the wind speed is not less than 1.5m / s. Rapid changes in wind speed, power, and valve opening Disturbances have no major effect on the steady operation of the system, meaning that system operation has some “tolerance” for these small, fast disturbances. By introducing the characteristic parameters of the system, the analytical model is established, and the semi-empirical formula such as natural circulation flow with empirical coefficient is obtained in this paper. Compared with the experimental data, 98.8% of the data point deviation less than ± 15%.