Evaluation of Cylindrical Asymmetric Surface Dielectric Barrier Discharge Actuators for Surface Decontamination and Mixing

被引:1
作者
Ngo, Alvin D. [1 ]
Pai, Kedar [2 ]
Timmons, Christopher [2 ]
Ma, Li Maria [3 ]
Jacob, Jamey [1 ]
机构
[1] Oklahoma State Univ, Mech & Aerosp Engn, Stillwater, OK 74078 USA
[2] Plasma Bion LLC, Stillwater, OK 74074 USA
[3] Oklahoma State Univ, Inst Biosecur & Microbial Forens Natl, Stillwater, OK 74078 USA
关键词
surface dielectric barrier discharge; cold atmospheric plasma; cylindrical actuators; bacterial inactivation; flow control; particle image velocimetry; ATMOSPHERIC-PRESSURE PLASMAS; INACTIVATION;
D O I
10.3390/plasma4040038
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Surface dielectric barrier discharge (SDBD) was used to evaluate cylindrical plasma actuators for inactivation of Salmonella enterica. A cylindrical SDBD configuration was evaluated to determine if the inherent induced body force could be leveraged to impel plasma species, such as reactive oxygen and nitrogen species (RONS), as an apparatus to sterilize surfaces. The cylindrical structure is evaluated in this study to observe whether an increase in mixing is possible to efficiently distribute the plasma species, thereby improving bacterial inactivation efficiency. The increase in induced airflow of SDBD actuators with increased numbers of electrodes correlates with increased bacterial inactivation. These results suggest that improving the particle velocity, airflow mixing tendencies, and plasma volume for the same power inputs (same net power to the actuators) results in increased surface decontamination efficiency.
引用
收藏
页码:755 / 763
页数:9
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