NDLI: Reactive oxygen and nitrogen species (RONS) produced by repetitive pulses in atmospheric pressure plasma jets

Content Provider	IEEE Xplore Digital Library
Author	Norberg, S.A. Johnsen, E. Kushner, M.J.
Copyright Year	2013
Description	Author affiliation: Electr. Eng & Comput. Sci. Dept., Univ. of Michigan, Ann Arbor, MI, USA (Kushner, M.J.) \|\| Mech. Eng. Dept., Univ. of Michigan, Ann Arbor, MI, USA (Norberg, S.A.; Johnsen, E.)
Abstract	Summary form only given. Reactive oxygen and nitrogen species (RONS) are desired in numerous applications from the destruction of harmful proteins and bacteria for sterilization in the medical field to taking advantage of the metastable characteristics of $O_{2}(^{1}$ Δ) to transfer energy to other species. Advances in atmospheric pressure plasma jets in recent years have shown the possibility of using this technology as a source of RONS. The plasma jets consist of small diameter tubes (a few mm) through which rare gas mixtures (e.g., He seeded with a few percent of $O_{2})$ are flowed into room air. They are typically operated in a dielectric barrier discharge (DBD) configuration which produces an ionization wave (or plasma bullet) with repetition rates of many kHz to tens or hundreds of MHz. In this paper, we report on results of a computational investigation of the production of RONS from repetitively pulsed plasma jets at frequencies from many kHz to many MHz consisting of $He/O_{2}$ mixtures discharged into ambient air. The computer model used in this study, nonPDPSIM, solves transport equations for charged and neutral species, Poisson's equation for the electric potential, the electron energy conservation equation for the electron temperature, and Navier-Stokes equations for the neutral gas flow. Rate coefficients and transport coefficients for the bulk plasma are obtained from local solutions of Boltzmann's equation for the electron energy distribution. The length of the interpulse period has significant effects on the density and distribution of the RONS in the effluent of the plasma jet. At high repetition rates (producing interpulse periods shorter than the gas clearing time), there is accumulation of RONS in the plume on a pulse-to-pulse basis, enabling further reactions between these species. The ionization wave of the following pulse samples the reactive environment produced by the previous pulse. At lower repetition rates, the interpulse periods are commensurate or longer than the clearing time of the gas through the device. In these cases, the ionization wave enters a more pristine and controllable environment.
Starting Page	1
Ending Page	1
File Size	102690
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6633322
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasmas Mathematical model Nitrogen Educational institutions Computers Equations Oxygen
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in