Cloud Chamber Study of S02 and N02 Scavenging and Transformation

S02 和 N02 清除和转化的云室研究

• 批准号: 8914464
• 负责人: Tihomir Novakov
• 金额: $ 10万
• 依托单位: Lawrence Berkeley Laboratory
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914464&HistoricalAwards=false
• 关键词: Cloud; Chamber; Study; S02; N02

The objective of this project is to study heterogeneous (multiphase) reactions of SO2 and NO2 in laboratory-generated clouds. Specific questions to be addressed in the proposed research are: What is the role of water phase change (form vapor to condensed cloud drops) in scavenging and oxidation of SO2 in the presence of ammonia and other atmospheric gases? What is the effect of water phase change on NO2 scavenging and chemical transformation? What is the effect of different cloud condensation nuclei (including those produced by combustion) on these processes? The approach to answering these questions involves the use of the LBL cloud chamber. Such an approach is advantageous because chemical and physical processes that occur in a system with dispersed water drops may be significantly different from those proceeding in a bulk system. These differences are related to the uptake of gaseous species into drops and the effects of chemical and physical properties of cloud condensation nuclei on liquid water composition, drop concentration, and size distribution.

本项目的目标是研究异质 实验室产生的SO2和NO2的（多相）反应 云 建议中应处理的具体问题 研究是： 水的相变（从蒸汽到 凝结云滴）清除和氧化SO2 在 氨和其他大气气体的存在吗 水的相变对NO2清除有什么影响 和化学转化 不同的云凝结核有什么影响 （包括燃烧产生的）对这些过程的影响？ 回答这些问题的方法包括使用 LBL云室 这种方法是有利的 因为系统中发生的化学和物理过程 与分散的水滴相比， 这些在批量系统中进行。 这些差异是 与气态物质进入液滴的吸收有关， 云的化学和物理性质的影响 液态水组成的凝结核，滴 浓度和尺寸分布。