Characteristics of a Gliding Arc Discharge Under the Influence of a Laminar Premixed Flame
(2019) In IEEE Transactions on Plasma Science 47(1). p.403-409- Abstract
The effect of combustion on a gliding arc (GA) discharge is investigated using simultaneous measurements of current and voltage waveforms, as well as imaging and spectroscopic analysis of plasma and flame luminescence. Attributed to the existence of flame, the breakdown voltage and current peak are reduced and the bright sparks during breakdown are dampened. The intrinsic reason is largely owing to the thermal effect of flame. Electrical breakdown is mainly determined by the reduced electric field strength (E/N), which is inversely proportional to temperature. Assuming a constant E/N for breakdown, the combustion-induced temperature increment gives rise to a reduction of the breakdown voltage. The gas composition seems to have less... (More)
The effect of combustion on a gliding arc (GA) discharge is investigated using simultaneous measurements of current and voltage waveforms, as well as imaging and spectroscopic analysis of plasma and flame luminescence. Attributed to the existence of flame, the breakdown voltage and current peak are reduced and the bright sparks during breakdown are dampened. The intrinsic reason is largely owing to the thermal effect of flame. Electrical breakdown is mainly determined by the reduced electric field strength (E/N), which is inversely proportional to temperature. Assuming a constant E/N for breakdown, the combustion-induced temperature increment gives rise to a reduction of the breakdown voltage. The gas composition seems to have less impact on the breakdown voltage. However, the addition of CH₄ can induce more radicals (e.g., H atoms) that enhance the intensity of relevant spectral emissions, especially from OH*. Due to the transport of relatively long-lived radicals, the width of the plasma column of the GA discharge is broadened to form a local reaction zone, serving as a flame holder. Interestingly, the plasma channel moves more smoothly as the flame is present. It implies that the flow field is less turbulent owing to combustion.
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- author
- Kong, Chengdong LU ; Gao, Jinlong LU ; Zhu, Jiajian LU ; Ehn, Andreas LU ; Alden, Marcus LU and Li, Zhongshan LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Atmospheric modeling, Combustion, Discharges (electric), Electrodes, Fires, Flame-plasma interaction, gliding arc (GA) discharge, Plasmas, stabilization of discharge, thermal effect.
- in
- IEEE Transactions on Plasma Science
- volume
- 47
- issue
- 1
- pages
- 403 - 409
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85056322652
- ISSN
- 0093-3813
- DOI
- 10.1109/TPS.2018.2877126
- language
- English
- LU publication?
- yes
- id
- 900b4606-cb14-47b6-a6d6-d58e644be31c
- date added to LUP
- 2018-11-23 08:19:44
- date last changed
- 2022-04-25 19:13:44
@article{900b4606-cb14-47b6-a6d6-d58e644be31c, abstract = {{<p>The effect of combustion on a gliding arc (GA) discharge is investigated using simultaneous measurements of current and voltage waveforms, as well as imaging and spectroscopic analysis of plasma and flame luminescence. Attributed to the existence of flame, the breakdown voltage and current peak are reduced and the bright sparks during breakdown are dampened. The intrinsic reason is largely owing to the thermal effect of flame. Electrical breakdown is mainly determined by the reduced electric field strength (E/N), which is inversely proportional to temperature. Assuming a constant E/N for breakdown, the combustion-induced temperature increment gives rise to a reduction of the breakdown voltage. The gas composition seems to have less impact on the breakdown voltage. However, the addition of CH&#x2084; can induce more radicals (e.g., H atoms) that enhance the intensity of relevant spectral emissions, especially from OH*. Due to the transport of relatively long-lived radicals, the width of the plasma column of the GA discharge is broadened to form a local reaction zone, serving as a flame holder. Interestingly, the plasma channel moves more smoothly as the flame is present. It implies that the flow field is less turbulent owing to combustion.</p>}}, author = {{Kong, Chengdong and Gao, Jinlong and Zhu, Jiajian and Ehn, Andreas and Alden, Marcus and Li, Zhongshan}}, issn = {{0093-3813}}, keywords = {{Atmospheric modeling; Combustion; Discharges (electric); Electrodes; Fires; Flame-plasma interaction; gliding arc (GA) discharge; Plasmas; stabilization of discharge; thermal effect.}}, language = {{eng}}, number = {{1}}, pages = {{403--409}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Plasma Science}}, title = {{Characteristics of a Gliding Arc Discharge Under the Influence of a Laminar Premixed Flame}}, url = {{http://dx.doi.org/10.1109/TPS.2018.2877126}}, doi = {{10.1109/TPS.2018.2877126}}, volume = {{47}}, year = {{2019}}, }