School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST) , Gwangju 61005, Korea.
Environ Sci Technol. 2017 Feb 7;51(3):1477-1487. doi: 10.1021/acs.est.6b03919. Epub 2017 Jan 27.
A reactive plume model (RPM) was developed to comprehensively consider power-plant plume photochemistry with 255 condensed photochemical reactions. The RPM can simulate two main components of power-plant plumes: turbulent dispersion of plumes and compositional changes of plumes via photochemical reactions. In order to evaluate the performance of the RPM developed in the present study, two sets of observational data obtained from the TexAQS II 2006 (Texas Air Quality Study II 2006) campaign were compared with RPM-simulated data. Comparison shows that the RPM produces relatively accurate concentrations for major primary and secondary in-plume species such as NO, SO, ozone, and HSO. Statistical analyses show good correlation, with correlation coefficients (R) ranging from 0.61 to 0.92, and good agreement with the Index of Agreement (IOA) ranging from 0.76 to 0.95. Following evaluation of the performance of the RPM, a demonstration was also carried out to show the applicability of the RPM. The RPM can calculate NO photochemical lifetimes inside the two plumes (Monticello and Welsh power plants). Further applicability and possible uses of the RPM are also discussed together with some limitations of the current version of the RPM.
开发了一个反应性羽流模型 (RPM)，以综合考虑包含 255 个冷凝光化学反应的电厂羽流光化学。RPM 可以模拟电厂羽流的两个主要成分：羽流的湍流扩散和通过光化学反应引起的羽流成分变化。为了评估本研究中开发的 RPM 的性能，将 TexAQS II 2006（德克萨斯空气质量研究 II 2006）期间获得的两组观测数据与 RPM 模拟数据进行了比较。比较表明，RPM 可以生成主要一次和二次羽流物种（如 NO、SO、臭氧和 HSO）的相对准确浓度。统计分析表明相关性良好，相关系数 (R) 范围为 0.61 至 0.92，与协议指数 (IOA) 的一致性也很好，范围为 0.76 至 0.95。在评估 RPM 的性能后，还进行了演示，以展示 RPM 的适用性。RPM 可以计算两个羽流（蒙蒂塞洛和威尔士电厂）内部的 NO 光化学寿命。还讨论了 RPM 的进一步适用性和可能用途，以及当前 RPM 版本的一些局限性。
