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

Autor: Alvin D. Ngo, Kedar Pai, Christopher Timmons, Li Maria Ma, Jamey Jacob
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Plasma, Vol 4, Iss 4, Pp 755-763 (2021)
Druh dokumentu: article
ISSN: 2571-6182
DOI: 10.3390/plasma4040038
Popis: 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.
Databáze: Directory of Open Access Journals