STTR Phase I: Soft X-ray Enhanced Electrostatic Precipitator for High Efficiency Air Purification in Indoor Environments

STTR 第一期：软 X 射线增强静电除尘器，用于室内环境高效空气净化

• 批准号: 1549666
• 负责人: Tandeep Chadha
• 金额: $ 22.39万
• 依托单位: Applied Particle Technology, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1549666&HistoricalAwards=false
• 关键词: STTR; Phase; Soft; ray; Enhanced

The broader impact/commercial potential of this Small Business Technology Transfer Phase I project will be the development of an air purification system that in a single step will achieve HEPA standard air filtration efficiencies coupled with the removal of gaseous pollutants and inactivation of air borne pathogens while reducing the overall energy required to provide clean air. This would significantly aid in providing cleaner air thereby reducing chances of airborne disease transmission. The implications of this technology are even more significant for sensitive environments such as hospitals and clean rooms where clean air is required, but is expensive due to the high energy cost associated with current filtration technologies. This technology would be able to overcome current drawbacks with filtration technologies by significantly reducing the dependence of clean air on energy consumption. The technology also has potential applicability in other specialty markets where HEPA filters are used. The technical objectives in this Phase I project are to develop a soft x-ray enhanced electrostatic precipitator (SXC-ESP) system for the co-removal of particles, gaseous pollutants, volatile organic compounds and the inactivation of pathogens from contaminated air streams. The project will address significant scientific challenges associated with air purification by providing a mechanistic understanding of the ultrafine (nanometer sized) particle charging and capture process; and of the pathways of gaseous species oxidation and pathogen inactivation in photo-ionizer coupled coronas. This mechanistic understanding will form the basis of the design and scale up parameters for the technology for high efficiency air purification with low energy consumption. This model led design will be used to fabricate a scaled up prototype for the co-removal of particulates, gaseous pollutants, and the inactivation of pathogens. The prototype system will be tested under field conditions in collaboration with facilities and maintenance professionals and experts in the filtration industry.

这个小企业技术转让第一阶段项目更广泛的影响/商业潜力将是开发一种空气净化系统，该系统只需一步即可实现HEPA标准空气过滤效率，同时去除气态污染物和灭活空气传播的病原体，同时减少空气污染物。提供清洁空气所需的总能量。这将大大有助于提供更清洁的空气，从而减少空气传播疾病的机会。该技术的影响对于敏感环境（例如医院和洁净室）甚至更加重要，在这些环境中需要清洁空气，但是由于与当前过滤技术相关的高能量成本而昂贵。该技术将能够通过显著降低清洁空气对能源消耗的依赖来克服过滤技术目前的缺点。该技术在使用HEPA过滤器的其他专业市场也具有潜在的适用性。第一阶段项目的技术目标是开发一种软X射线增强静电除尘器（SXC-ESP）系统，用于从受污染的气流中共同去除颗粒物、气态污染物、挥发性有机化合物和灭活病原体。该项目将通过提供对超细（纳米尺寸）颗粒充电和捕获过程的机械理解来解决与空气净化相关的重大科学挑战;以及光电离器耦合电晕中气态物质氧化和病原体灭活的途径。这种机理理解将形成低能耗高效空气净化技术的设计和放大参数的基础。该模型设计将用于制造一个按比例放大的原型，用于共同去除颗粒物、气态污染物和灭活病原体。原型系统将在现场条件下与设施和维护专业人员以及过滤行业的专家合作进行测试。