大气压表面放电等离子体中活性粒子的产生与传质研究

讲座名称: 大气压表面放电等离子体中活性粒子的产生与传质研究
讲座时间 2018-08-12
讲座地点 电气工程学院电器会议室
讲座人 James Walsh
讲座内容

讲座题目:大气压表面放电等离子体中活性粒子的产生与传质研究
时间:8月12日(周日)上午9:30
地点:电气工程学院电器会议室
讲座摘要:
In recent years, applications based on Surface Barrier Discharges (SBDs) have increased significantly. SBDs in such applications serve as a simple and low cost source of reactive chemical species under ambient conditions (atmospheric pressure and room temperature). Examples of applications where this type of discharge is being used include CO2conversion, pollution abatement in water, and microbial decontamination. Critically, in the SBD configuration, reactive species are not only generated, but transported beyond the discharge region through an induced flow of the background gas caused by Electrohydrodynamic (EHD) forces generated by the plasma. For any given application it is necessary to understand the spatial distribution of the generated reactive species, which is a challenging task as the chemistry of the discharge is influenced by its induced flow. This contribution explores how the transport of reactive species from the discharge region to a downstream point of application can be manipulated to maximise application efficiency. Using both computational modelling and experimental measurements, the impact of electrode geometry and plasma generation conditions on the composition and transport of reactive species is explored.

讲座人介绍

James Walsh,英国拉夫堡大学博士(2009),英国利物浦大学电气工程与电子系Reader(教授)。

长期从事低温等离子体源开发、等离子体在健康与农业领域的应用研究。获得英国自然科学基金会(EPSRC)的优秀人才项目,致力于物理、电气工程与微生物学的交叉研究。主持各类项目总经费近200万英镑,发表SCI论文60余篇,被引用2600余次。

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