Analysis of the electromagnetic effects on the large floating roof oil tanks by nearby lightning strike based on TLM

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electrostatics Pub Date : 2024-04-27 DOI:10.1016/j.elstat.2024.103927

Hamed Neyshabouri, Mohsen Niasati

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引用次数: 0

Abstract

Lightning fire is one of the biggest dangers for chemical and petrochemical storage tank farms, particularly in floating roof oil tanks (FROTs). To improve the lightning protection of FROTs, the process of floating roof tanks affected by lightning is analyzed. Lightning inductive effects can result in the undesired operation of the above-ground storage tank equipment and endanger exploitation safety. The time domain finite element analysis based on the transmission line model (TLM) method is regarded as a numerical technique to solve field problems by implementing circuit equivalents. This study aims to analyze lightning strike characteristics using the Heidler current function and simulate electromagnetic field strength (EMFS) distribution and surface current density (SCD). Calculation of minimum possible effective strike distance and shielding effectiveness (SE) is performed. Parametric modeling ensures accurate modeling of the roof's bypass conductor to the shell. By utilizing the Parameter Sweep technique, multiple simulations can be carried out with varying structure parameter values. This approach ensures optimal efficiency and accuracy in the results obtained.

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基于 TLM 的附近雷击对大型浮顶油罐的电磁效应分析

雷击起火是化工和石化储罐区，尤其是浮顶油罐（FROT）面临的最大危险之一。为了提高浮顶油罐的防雷能力，本文分析了浮顶油罐受雷电影响的过程。雷电感应效应会导致地面储油罐设备不正常运行，危及开采安全。基于传输线模型（TLM）方法的时域有限元分析被认为是一种通过实现电路等效来解决现场问题的数值技术。本研究旨在利用 Heidler 电流函数分析雷击特征，并模拟电磁场强度（EMFS）分布和表面电流密度（SCD）。计算最小可能有效雷击距离和屏蔽效果 (SE)。参数建模可确保对屋顶与外壳的旁路导体进行精确建模。利用参数扫描技术，可以在不同结构参数值下进行多次模拟。这种方法可确保所获结果的最佳效率和准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electrostatics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

11.10%

发文量

审稿时长

49 days

期刊介绍： The Journal of Electrostatics is the leading forum for publishing research findings that advance knowledge in the field of electrostatics. We invite submissions in the following areas: Electrostatic charge separation processes. Electrostatic manipulation of particles, droplets, and biological cells. Electrostatically driven or controlled fluid flow. Electrostatics in the gas phase.