CAREER: Understanding Multiphase Atmospheric Aerosol Particle Thermodynamics using Models, Mimics, and Microfluidics

职业：使用模型、模拟和微流体了解多相大气气溶胶颗粒热力学

• 批准号: 1554936
• 负责人: Cari Dutcher
• 金额: $ 47.76万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2022-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554936&HistoricalAwards=false
• 关键词: CAREER; Understanding; Multiphase; Atmospheric; Aerosol; CAREER; Understanding; Multiphase; Atmospheric; Aerosol

This effort will improve the ability to model aerosol properties in the atmosphere. It combines thermodynamic modeling and experimental studies to better understand water uptake by particles and the interactions of gases, solid and liquid aerosols, and water in the Earth's atmosphere. Project results will benefit climate and air quality models and improve our ability to predict ambient concentrations of particulate matter.The specific project outcomes expected are: (1) a parameterized predictive model for equilibrium internal structure of atmospheric aerosol particles (internally mixed, nodule, or core-shell) in complex multicomponent systems across the entire range of particle liquid water content or gas phase relative humidity; and (2) a novel microfluidic platform for mimicking and investigating aqueous-organic and aqueous-vapor interfaces which will yield valuable data for improving the parameterizations used in predictive models.

这项工作将提高对大气中气溶胶特性建模的能力。它结合了热力学建模和实验研究，以更好地了解颗粒的吸水，气体，固体和液体气溶胶的相互作用以及地球大气中的水。 项目结果将受益于气候和空气质量模型，并提高我们预测颗粒物的环境浓度的能力。预期的特定项目结果是：（1）在整个粒子液体水含量或气体相对量的粒子粒子范围内的复杂多组分系统中，大气中气溶胶颗粒（内部混合，结节或核心 - 壳）的平衡内部结构的参数化预测模型； （2）一个新型的微流体平台，用于模仿和研究水性和水蒸气接口，该平台将产生有价值的数据，以改善预测模型中使用的参数化。