Study of Industrial Accident Based on In-Depth Investigation

Chia-Yun Hsu; Hui-Pei Chang; Chao-Shi Chen

doi:10.46604/peti.2025.14744

Authors

Chia-Yun Hsu Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
Hui-Pei Chang Bachelor Degree Program in Fire Safety Science, Chang Jung Christian University, Tainan, Taiwan, ROC
Chao-Shi Chen Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, ROC

DOI:

https://doi.org/10.46604/peti.2025.14744

Keywords:

industrial, minimum ignition energy, volatile organic compounds, static electricity

Abstract

Industrial accidents caused by static electricity were common for years. Beyond grounding and other static mitigation devices, plants often control environmental humidity and optimize production processes to reduce static hazards. This study aims to determine the causes and mechanism of an industrial accident and well-known unusual event related to static electricity, volatile organic compounds (VOC), and minimum ignition energy (MIE). Through instrument measurements and analysis methodology such as Hartmann tube, static electricity meter and fault tree, the cross factors are analyzed to complete the study systematically. Results reveal that anti-rust paint on the inner surfaces of machinery created insulating conditions, allowing static electricity to accumulate and discharge during material feeding. The induced static electricity subsequently releases a high discharge energy exceeding the MIE of the particle. When combined with VOC generation from an unexpected process interruption, it can lead to fire or explosion.

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