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Abstract <p>The motivation for this research is the need for practical and scalable current–voltage (<i>I–V</i>) characterization of plasma discharges in various plasma devices, such as electrostatic precipitators. Analytical calculations of DC corona discharge <i>I</i>–<i>V</i> characteristics using geometric properties are much simpler than physical calculation models. The novelty of this research is the use of a three-dimensional active electrode, with the space below the active electrode filled with air and a dielectric. The passive electrode is positioned horizontally at the lowest point of all electrode equipment systems. The use of geometric properties in plasma discharge is based on the massive plasma flow at the sharp bottom end of the active electrode, which is achieved by generating a sharpness factor of the form <i>k</i>, incorporated into the integration result of the modified capacitance calculation. Python graphical user interface (GUI) programming creates a simulation graph of the <i>I</i>‒<i>V</i> characteristics, with the k factor as the fitting parameter, and the standard deviation (SD) and <i>t</i>-test as the curve accuracy factors. There are three graphs for the hemispherical shell to plane (HS-P) configuration model and two graphs for the hemispherical bowl to plane (HSB-P) configuration model, with all graphs meeting a sufficient level of accuracy between the data points and the simulation curve (<i>t</i>-test value ≤ 0.05) with the best and worst curves being produced by the HS-P configuration model with a spherical shell radius of 0.04 m (SD = 0.8903) and 0.025 m (SD = 2.3399), respectively.</p>

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Effect of the Active Electrode Geometric Properties on Calculating the I–V Characteristics of the Corona Discharge

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • A. Y. Wardaya,
  • Z. Muhlisin,
  • J. Windarta,
  • P. Triadyaksa,
  • S. Hadi

摘要

Abstract

The motivation for this research is the need for practical and scalable current–voltage (I–V) characterization of plasma discharges in various plasma devices, such as electrostatic precipitators. Analytical calculations of DC corona discharge I–V characteristics using geometric properties are much simpler than physical calculation models. The novelty of this research is the use of a three-dimensional active electrode, with the space below the active electrode filled with air and a dielectric. The passive electrode is positioned horizontally at the lowest point of all electrode equipment systems. The use of geometric properties in plasma discharge is based on the massive plasma flow at the sharp bottom end of the active electrode, which is achieved by generating a sharpness factor of the form k, incorporated into the integration result of the modified capacitance calculation. Python graphical user interface (GUI) programming creates a simulation graph of the I‒V characteristics, with the k factor as the fitting parameter, and the standard deviation (SD) and t-test as the curve accuracy factors. There are three graphs for the hemispherical shell to plane (HS-P) configuration model and two graphs for the hemispherical bowl to plane (HSB-P) configuration model, with all graphs meeting a sufficient level of accuracy between the data points and the simulation curve (t-test value ≤ 0.05) with the best and worst curves being produced by the HS-P configuration model with a spherical shell radius of 0.04 m (SD = 0.8903) and 0.025 m (SD = 2.3399), respectively.