Research on the Impact and Risk Assessment of Dynamic Charged Targets on the Static Electricity Characteristics of Gas Stations Based on Numerical Calculation.

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Title:	Research on the Impact and Risk Assessment of Dynamic Charged Targets on the Static Electricity Characteristics of Gas Stations Based on Numerical Calculation.
Authors:	Liu, Xingmou¹ liuxm@cqupt.edu.cn, Ding, Yu² dingyu202312@163.com, Yang, Ning³ 791339327@qq.com, Xiao, Yao⁴ 541294138@qq.com, Jadoon, Ammad⁵ ammad.jadoon@nfci.et.edu.pk, Sun, Xun⁶ 119674153@qq.com
Source:	Engineering Letters. Jul2026, Vol. 34 Issue 7, p2852-2860. 9p.
Subjects:	Service stations, Electrostatic fields, Voltage control, Numerical calculations, Human-machine systems, Electrostatic discharges, Dielectric strength, Electrostatics
Abstract:	To address the insufficient quantification of dynamic processes in gas station electrostatic risk assessments, this study employs numerical calculation to perform a refined quantitative analysis of the electrostatic field during human-vehicle interactions. Using a three-dimensional model incorporating key dynamic elements, the research reveals that high-risk zones are concentrated in the near-field interaction space, where field enhancement arises from the superposition of capacitive coupling and geometric singularity effects. A multi-parameter sweep was utilized to construct a two-dimensional "distance-voltage-field strength" phase diagram, explicitly delineating safety boundaries for air breakdown. Quantitative evaluations demonstrate that the approach of a human introduces a new equipotential boundary that geometrically constrains the field, causing severe gradient distortion. Furthermore, high initial potentials drastically amplify the absolute spatial gradients, triggering drastic surges in near-field intensity. Consequently, given the objective constraint of operational distances, an "electrostatic potential control" strategy is shown to offer superior engineering robustness over "distance control." Finally, by reconstructing the air gap field and applying dual criteria--electric field breakdown and Minimum Ignition Energy--the physical triggering mechanism of electrostatic accidents was replicated. These findings provide essential quantitative evidence and physical insights for the refined assessment and scientific mitigation of electrostatic risks at gas stations. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

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Abstract:	To address the insufficient quantification of dynamic processes in gas station electrostatic risk assessments, this study employs numerical calculation to perform a refined quantitative analysis of the electrostatic field during human-vehicle interactions. Using a three-dimensional model incorporating key dynamic elements, the research reveals that high-risk zones are concentrated in the near-field interaction space, where field enhancement arises from the superposition of capacitive coupling and geometric singularity effects. A multi-parameter sweep was utilized to construct a two-dimensional "distance-voltage-field strength" phase diagram, explicitly delineating safety boundaries for air breakdown. Quantitative evaluations demonstrate that the approach of a human introduces a new equipotential boundary that geometrically constrains the field, causing severe gradient distortion. Furthermore, high initial potentials drastically amplify the absolute spatial gradients, triggering drastic surges in near-field intensity. Consequently, given the objective constraint of operational distances, an "electrostatic potential control" strategy is shown to offer superior engineering robustness over "distance control." Finally, by reconstructing the air gap field and applying dual criteria--electric field breakdown and Minimum Ignition Energy--the physical triggering mechanism of electrostatic accidents was replicated. These findings provide essential quantitative evidence and physical insights for the refined assessment and scientific mitigation of electrostatic risks at gas stations. [ABSTRACT FROM AUTHOR]
ISSN:	1816093X