Volume 123, Number 6, September 2018
|Number of page(s)||6|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||22 October 2018|
Repetition frequency of a DC gliding arc discharge in plasma-assisted fuel-rich combustion
1 Laboratory of Combustion, Propulsion and Energy, Technological Institute of Aeronautics São José dos Campos, Brazil
2 Laboratory of Plasmas, Films and Surfaces, Santa Catarina State University - Joinville, Brazil
Received: 26 July 2018
Accepted: 16 September 2018
Plasma-assisted combustion is a growing field of applied physics. In this study, a DC gliding arc plasma reactor used as part of a swirler stabilized burner was characterized to evaluate the discharge repetition frequency as a function of process parameters. The discharge was generated in fuel-rich premixed mixtures of air and natural gas. The repetition frequency was determined by applying a fast Fourier transform to the voltage waveforms. The results show that the mean voltage and mean current of the gliding arc remain almost constant as a function of the total gas flow rate. The increase in fuel concentration promotes a drop in the breakdown voltage, which leads to a rise in the discharge repetition frequency. However, for a fixed natural gas flow rate, the repetition frequency grows with the increased total mass flow rate due to a higher arc velocity.
PACS: 52.77.-j – Plasma applications / 52.70.-m – Plasma diagnostic techniques and instrumentation / 52.75.-d – Plasma devices
© EPLA, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.