Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Simulation of RF coronas using the FE-FCT method.

G E Georghiou1, A C Metaxas

  • 1Engineering Department, University of Cambridge, U.K.

The Journal of Microwave Power and Electromagnetic Energy : a Publication of the International Microwave Power Institute
|December 1, 2000
PubMed
Summary

Corona discharges, the precursor to arcs in radio frequency heating, were numerically studied. Higher operating frequencies increase corona onset voltage, reducing arc risk, while lower pressures increase arc likelihood in vacuum systems.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Modelling of industrial conveyorized applicators using higher order vector finite elements.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2007
Same author

Application of the resistive sheet in finite element microwave heating systems.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2004
Same author

The AMPERE association and trends in its biennial conferences.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2004
Same author

Numerical modeling for RF and microwave heating using FE comes of age.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2004
Same author

Parallel computing in microwave heating analysis.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2003
Same author

The effect of wall losses in the numerical simulation of microwave heating problems.

The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute·2001

Area of Science:

  • Plasma Physics
  • Electrical Engineering

Background:

  • Arcs in radio frequency (RF) heating systems can disrupt operation.
  • Corona discharges are identified as the primary precursor to these arcs.
  • Understanding corona discharge behavior is crucial for mitigating arc formation.

Purpose of the Study:

  • To numerically investigate corona discharges as precursors to arcs in RF heating.
  • To analyze the influence of operating frequency and pressure on discharge characteristics.
  • To determine factors affecting arc proneness in RF systems.

Main Methods:

  • Numerical simulation using the finite element-flux corrected transport technique.
  • Modeling a point-plane configuration as an approximation for an RF applicator.
  • Investigating effects of varying operating frequency and pressure.

Related Experiment Videos

Main Results:

  • Increased operating frequency in the RF spectrum led to higher corona onset voltage.
  • Decreased pressure resulted in a lower corona onset voltage.
  • Higher frequencies correlate with reduced arc-prone behavior, unlike low-pressure conditions.

Conclusions:

  • Operating frequency significantly impacts corona onset voltage and arc formation.
  • Low-pressure environments enhance the possibility of arc formation in RF systems.
  • Findings provide insights into designing more robust RF heating systems by managing corona discharges.