Modelling of microdischarges in metal vapour of cadmium in comparison with electrical measurements

Authors

  • M. Baeva Leibniz Institute for Plasma Science and Technology, 17489 Greifswald, Germany https://orcid.org/0000-0003-3305-2870
  • A. P. Jovanović Leibniz Institute for Plasma Science and Technology, 17489 Greifswald, Germany https://orcid.org/0000-0002-7104-6466
  • R. Methling Leibniz Institute for Plasma Science and Technology, 17489 Greifswald, Germany https://orcid.org/0000-0002-9485-6277
  • D. Bratek Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
  • N. Schüler Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
  • C. Uber Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
  • D. Uhrlandt Leibniz Institute for Plasma Science and Technology, 17489 Greifswald, Germany https://orcid.org/0000-0001-6534-147X

DOI:

https://doi.org/10.14311/ppt.2025.2.112

Keywords:

microdischarge, fluid model, cadmium, safety assessment

Abstract

Microdischarges in cadmium vapour occur in a testing equipment for safety assessment of electric devices for explosion protection. In this work, a unified non-equilibrium model is employed to obtain the plasma properties for a current of 60 mA and gap lengths from 20 up to 160 µm corresponding to conducted experiments. The predicted voltage as a function of the discharge length agrees well with the measured values. The model provides the heat generation relevant to the ignition of a gas mixture.

References

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M. Baeva, A. P. Jovanović, R. Methling, et al. Modelling microdischarges in metal vapour of cadmium - Dataset, 2025. doi:10.34711/INPTDAT.943.

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Published

2025-09-10

Issue

Vol. 12 No. 2 (2025)

Section

Articles

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Copyright (c) 2025 M. Baeva, A. P. Jovanović, R. Methling, D. Bratek, N. Schüler, C. Uber, D. Uhrlandt

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