Characteristics of direct current discharge in supercritical carbon dioxide

Chao Hai Zhang, Hai Liang Lai, Zhuang Xu

Research output: Journal PublicationArticlepeer-review

3 Citations (Scopus)


The discharge not only in the gas but also in the liquid and supercritical carbon dioxide I was researched in order to study the characteristics of direct current discharge in supercritical carbon dioxide. The gap length of the point to plane electrodes was 200 μm, and the curvature radius of the point was 35 μm. The breakdown characteristics of carbon dioxide in the direct field corresponded to the changing of temperature and pressure. The increasing rates of the breakdown voltage were different in different phases. Breakdown trait in liquid was similar to that of gas because of bubble triggering effect in liquid. The low increasing rate of breakdown voltage in supercritical carbon dioxide might be related to the unique characteristics of supercritical fluids.

Original languageEnglish
Pages (from-to)1059-1063
Number of pages5
JournalGaodianya Jishu/High Voltage Engineering
Issue number5
Publication statusPublished - May 2009


  • Breakdown voltage
  • Carbon dioxide
  • Direct current field
  • Electric discharge plasma
  • Increasing rate
  • Supercritical fluid

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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