Abstract This paper provides a summary of the methods used to quantify the mass release rate and thermodynamic state of the chlorine released during the Jack Rabbit II chlorine field experiments. In the two-year campaign, eight successful field trials were conducted in which chlorine was released in quantities of 5–10 tons (4540–9070 kg) through a 6-inch (0.152 m) circular breach in the test vessel (disseminator) along with an additional 20 ton (18100 kg) release (Trial 9). Previous analysis of load cell data has been conducted to quantify the mass release rate from primary containment as well as video evidence from Trial 6 which was used to quantify the rainout (and subsequent re-evaporation) during that trial. A method was developed to extend this analysis approach to other trials (except Trial 8 which was vertically upward and Trial 9 which was not instrumented with load cells). The objective of this work was to provide a simplified description of the source suitable for comparison of calculations made using different atmospheric transport and dispersion (ATD) models in Trials 1–7. This work also provides an estimate of the momentum flux (and mean velocity) of the release for use by ATD models which would use such information as input. The recommended release rate parameters are presented along with a summary of the relevant assumptions used in the analysis.

中文翻译：

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Jack Rabbit II 氯场实验的大气扩散模型比较的简化源描述

摘要 本文总结了用于量化 Jack Rabbit II 氯气田试验期间释放的氯的质量释放速率和热力学状态的方法。在为期两年的活动中，进行了 8 次成功的现场试验，其中通过试验容器（传播器）中 6 英寸（0.152 米）的圆形裂口释放了 5-10 吨（4540-9070 千克）的氯。额外释放 20 吨（18100 千克）（试验 9）。之前对称重传感器数据进行了分析，以量化主要安全壳的质量释放率以及来自试验 6 的视频证据，用于量化试验期间的降雨（以及随后的再蒸发）。开发了一种方法以将这种分析方法扩展到其他试验（除了垂直向上的试验 8 和未配备称重传感器的试验 9）。这项工作的目的是提供对源的简化描述，适用于比较在试验 1-7 中使用不同大气传输和扩散 (ATD) 模型进行的计算。这项工作还提供了对释放的动量通量（和平均速度）的估计，供 ATD 模型使用，该模型将使用此类信息作为输入。推荐的释放速率参数与分析中使用的相关假设的摘要一起提供。这项工作的目的是提供对源的简化描述，适用于比较在试验 1-7 中使用不同大气传输和扩散 (ATD) 模型进行的计算。这项工作还提供了对释放的动量通量（和平均速度）的估计，供 ATD 模型使用，该模型将使用此类信息作为输入。推荐的释放速率参数与分析中使用的相关假设的摘要一起提供。这项工作的目的是提供对源的简化描述，适用于比较在试验 1-7 中使用不同大气传输和扩散 (ATD) 模型进行的计算。这项工作还提供了释放的动量通量（和平均速度）的估计值，供 ATD 模型使用，该模型将使用此类信息作为输入。推荐的释放速率参数与分析中使用的相关假设的摘要一起提供。