In this study, the temporal evolution and electrical characteristics of atmospheric pressure cold plasma jet (APPJ) structures with different quartz tube wall thicknesses that used AC power were investigated via experimentation and simulation. The percentage increase of electron density based on the wall thickness was investigated. Based on the optimal electric field intensity distribution and flow field distribution, the quartz tube with the optimal wall thickness improved the electron density. We applied the optimized APPJ structures to inactivate E. coli. We demonstrated that the APPJ structures with thin-walled quartz tubes had better inactivation characteristics than those with thick-walled structures regardless of the duration of treatment. The electron density properties of APPJ structures with different quartz tube wall thicknesses have a prominent impact on the improvement in the killing rate in the sterilization processes.

在这项研究中，通过实验和模拟研究了使用交流电源的具有不同石英管壁厚的大气压冷等离子体射流（APPJ）结构的时间演变和电气特性。研究了基于壁厚的电子密度增加百分比。基于最佳电场强度分布和流场分布，具有最佳壁厚的石英管提高了电子密度。我们应用优化的 APPJ 结构灭活大肠杆菌. 我们证明，无论治疗持续时间如何，具有薄壁石英管的 APPJ 结构都比具有厚壁结构的 APPJ 结构具有更好的灭活特性。不同石英管壁厚的APPJ结构的电子密度特性对灭菌过程中杀灭率的提高有显着影响。