University of Illinois Urbana-Champaign

Electric field effects on chemi-ionization in droplet burning

Patyal, Advitya

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Advitya_Patyal.pdf

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https://hdl.handle.net/2142/44132

Description

Title
Electric field effects on chemi-ionization in droplet burning
Author(s)
Patyal, Advitya
Issue Date
2013-05-24T21:51:42Z
Director of Research (if dissertation) or Advisor (if thesis)
Matalon, Moshe
Department of Study
Mechanical Sci & Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Date of Ingest
2013-05-24T21:51:42Z
Keyword(s)
  • Electric
  • Electric field
  • Droplet
  • Droplet combustion
  • Diffusion
  • Diffusion flame
  • Chemiluminescence
Abstract
The effects of an externally applied field are studied for a single isolated droplet flame under the spherically symmetric 1-D configuration. A reduced 3-step chemical kinetic mechanism is proposed to capture the production and destruction of ions inside the flame, which is then used for conducting analytical and numerical investigations. Large activation energy asymptotics were used to study the flame structure in the absence of the external field. The effect of the electric field is modelled using the Ionic Wind and Ohmic Heating. Furthermore, two distinguished limits of weak and strong field are studied to understand the charge redistribution in both cases. Based on the numerical results, an increase in the mass burning rate is observed with increasing potential. However, maximum flame temperature doesn't seem to be effected with the external field. Ohmic Heating effects are used to explain these observations.
Graduation Semester
2013-05
Permalink
http://hdl.handle.net/2142/44132
Copyright and License Information
Copyright 2013 Advitya Patyal

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