【摘要】 描述了 1997 年 8 月在连云港核电厂厂址复杂地形上为求取复杂地形烟羽轨迹和扩散参数而成功进行的 10 次 SF6 示踪实验。SF6从 100 m 高气象铁塔顶部释放;取样点采用居民区面源与可能的弧线布点相结合的方法;每次采取约 50 个样品;分析采用气相色谱-电子捕获检测(GC-ECD)方法;天气分类若按 P-G 方法,C,D类天气各 5 次,若按?T-U 方法分类 10 次全为 D 类天气;采用最小二乘法求解每次示踪实验的扩散参数;并对取样时间对扩散参数的影响作了实验测定。更多还原

【Abstract】 times SF6 trace experiments were successfully performed in August 1997 on a very complex terrain of Lianyungang Nuclear Power Plant in order to obtain plume trajectory and diffusion parameters. SF6 is released from the top of a tower of 100 m. The sample points are arranged not only on the sample lines but also on the areas near residences. About 50 samples are obtained in each SF6 trace experiment. The samples of SF6 are analysed by the GC-ECD method. The weather stability is 5 times C and D stabilities respectively if using P-G method or 10 times D stabilities if using ?T-U method. A least-square method is adopted to obtain the diffusion parameters from diffusion equation. Meanwhile the effect on the diffusion parameters from sampling time is measured based on the above SF6 trace experiments.更多还原