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Title: A Simulation of the Effects of Varying Repetition Rate and Pulse Width of Nanosecond Discharges on Premixed Lean Methane-Air Combustion

Two-dimensional kinetic simulation has been carried out to investigate the effects of repetition rate and pulse width of nanosecond repetitively pulsed discharges on stabilizing premixed lean methane-air combustion. The repetition rate and pulse width are varied from 10 kHz to 50 kHz and from 9 ns to 2 ns while the total power is kept constant. The lower repetition rates provide larger amounts of radicals such as O, H, and OH. However, the effect on stabilization is found to be the same for all of the tested repetition rates. The shorter pulse width is found to favor the production of species in higher electronic states, but the varying effects on stabilization are also found to be small. Our results indicate that the total deposited power is the critical element that determines the extent of stabilization over this range of discharge properties studied.
Authors:
 [1] ;  [1]
  1. Mechanical Engineering Department, Stanford University, Stanford, CA 94305-3032, USA
Publication Date:
OSTI Identifier:
1198313
Type:
Published Article
Journal Name:
Journal of Combustion
Additional Journal Information:
Journal Volume: 2012; Related Information: CHORUS Timestamp: 2016-08-02 12:23:04; Journal ID: ISSN 2090-1968
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE
Country of Publication:
Country unknown/Code not available
Language:
English