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dc.contributor.authorLi, F-Len_US
dc.contributor.authorHung, C-Ten_US
dc.contributor.authorLin, K-Men_US
dc.contributor.authorWei, T-Cen_US
dc.contributor.authorWu, J-Sen_US
dc.date.accessioned2014-12-08T15:33:24Z-
dc.date.available2014-12-08T15:33:24Z-
dc.date.issued2013-12-01en_US
dc.identifier.issn0963-0252en_US
dc.identifier.urihttp://dx.doi.org/10.1088/0963-0252/22/6/065003en_US
dc.identifier.urihttp://hdl.handle.net/11536/23216-
dc.description.abstractIn this paper, the mechanisms of light emissions, including NO-gamma, NO-beta and N-2-SPS, produced in a N-2/NH3 atmospheric-pressure dielectric barrier discharge considering realistic oxygen impurity (30 ppm) are investigated numerically and experimentally. Self-consistent, one-dimensional fluid modeling is used to numerically simulate the discharge process with 48 species and 235 reaction channels. An optical emission spectrometer (OES) is used to measure the relative intensities of the light emission. The simulations of the light emission intensities for the above-mentioned OES lines generally reproduce the trends observed in the experiments caused by changes in the NH3 concentration. All of the predicted intensities of NO-gamma, NO-beta and N-2-SPS decrease with increasing amount of NH3 caused by various reaction mechanisms. The former is due to the loss of N-2(A) and NO(A) by the reaction of NH3 with N-2(A) and NO(A), respectively. The decrease in NO-beta is due to the depletion of N and O because of NH3, and the decrease in N-2-SPS is due to electron attachment to NH3 and a weaker metastable-metastable associative ionization of N-2. All of the simulated results demonstrate that the discharges are typically Townsend-like because the ions outnumber the electrons and the electric field across the gap is distorted only slightly by the charged particles during the breakdown. Finally, a reduced chemical kinetics model for a planar atmospheric-pressure N-2/O-2/NH3 dielectric barrier discharge is proposed and validated by benchmarking against the above complete chemical kinetics. This results in a reduced chemical kinetics consisting of 33 species and 87 reactions with a very limited loss of accuracy of discharge properties, while it is 2.1 times faster in computational time as compared with the complete version.en_US
dc.language.isoen_USen_US
dc.titleNumerical and experimental investigation of light emissions of a planar nitrogen atmospheric-pressure dielectric barrier discharge due to addition of ammonia considering oxygen impurityen_US
dc.typeArticleen_US
dc.identifier.doi10.1088/0963-0252/22/6/065003en_US
dc.identifier.journalPLASMA SOURCES SCIENCE & TECHNOLOGYen_US
dc.citation.volume22en_US
dc.citation.issue6en_US
dc.citation.epageen_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000328070700003-
dc.citation.woscount0-
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