Lightning strike probability and current simulation for simple structures and floating roof tank

Air terminations must be strategically positioned at high-risk points to prevent lightning bypass. The likelihood of a direct lightning strike to points on a building can be evaluated using the dynamic electro-geometrical model (DEGM), which considers the geometric proximity of lightning orientation...

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Autores principales:	Aderibigbe Israel Adekitan, Michael Rock
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Data pattern recognition Dynamic electro-geometrical model Lightning protection system Lightning strike probability Lightning current distribution Interception efficiency Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/0d873a0e418648ca92219faa102ec651
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spelling	oai:doaj.org-article:0d873a0e418648ca92219faa102ec6512021-11-18T04:45:40ZLightning strike probability and current simulation for simple structures and floating roof tank1110-016810.1016/j.aej.2021.06.072https://doaj.org/article/0d873a0e418648ca92219faa102ec6512022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1110016821004312https://doaj.org/toc/1110-0168Air terminations must be strategically positioned at high-risk points to prevent lightning bypass. The likelihood of a direct lightning strike to points on a building can be evaluated using the dynamic electro-geometrical model (DEGM), which considers the geometric proximity of lightning orientation points in spaces around the structure to meshed points on the structure. This study evaluates the probability of a direct strike to simple structures and the maximum lightning currents that may strike the structure. The DEGM concept is applied within a defined lightning collection volume which saves computation time. Patterns that can lead to alternatives to DEGM are identified within the percentage strike probability for different heights of two cuboid structures. Three floating roof tanks of radii 20 m, 30 m, and 40 m are analysed. Four classes of lightning protection are applied for a simple building in compliance with the International Electrotechnical Commission guidelines using different heights of air termination rods for a gable roof structure. For class I, the lightning strike interception probability of the two rods is 99.96%, 99.90% for class II, 99.72% for class III, and 99.48% for class IV. Magnitude colour-coded 3D diagrams are presented to highlight strike probability and current variations.Aderibigbe Israel AdekitanMichael RockElsevierarticleData pattern recognitionDynamic electro-geometrical modelLightning protection systemLightning strike probabilityLightning current distributionInterception efficiencyEngineering (General). Civil engineering (General)TA1-2040ENAlexandria Engineering Journal, Vol 61, Iss 2, Pp 1643-1653 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Data pattern recognition Dynamic electro-geometrical model Lightning protection system Lightning strike probability Lightning current distribution Interception efficiency Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Data pattern recognition Dynamic electro-geometrical model Lightning protection system Lightning strike probability Lightning current distribution Interception efficiency Engineering (General). Civil engineering (General) TA1-2040 Aderibigbe Israel Adekitan Michael Rock Lightning strike probability and current simulation for simple structures and floating roof tank
description	Air terminations must be strategically positioned at high-risk points to prevent lightning bypass. The likelihood of a direct lightning strike to points on a building can be evaluated using the dynamic electro-geometrical model (DEGM), which considers the geometric proximity of lightning orientation points in spaces around the structure to meshed points on the structure. This study evaluates the probability of a direct strike to simple structures and the maximum lightning currents that may strike the structure. The DEGM concept is applied within a defined lightning collection volume which saves computation time. Patterns that can lead to alternatives to DEGM are identified within the percentage strike probability for different heights of two cuboid structures. Three floating roof tanks of radii 20 m, 30 m, and 40 m are analysed. Four classes of lightning protection are applied for a simple building in compliance with the International Electrotechnical Commission guidelines using different heights of air termination rods for a gable roof structure. For class I, the lightning strike interception probability of the two rods is 99.96%, 99.90% for class II, 99.72% for class III, and 99.48% for class IV. Magnitude colour-coded 3D diagrams are presented to highlight strike probability and current variations.
format	article
author	Aderibigbe Israel Adekitan Michael Rock
author_facet	Aderibigbe Israel Adekitan Michael Rock
author_sort	Aderibigbe Israel Adekitan
title	Lightning strike probability and current simulation for simple structures and floating roof tank
title_short	Lightning strike probability and current simulation for simple structures and floating roof tank
title_full	Lightning strike probability and current simulation for simple structures and floating roof tank
title_fullStr	Lightning strike probability and current simulation for simple structures and floating roof tank
title_full_unstemmed	Lightning strike probability and current simulation for simple structures and floating roof tank
title_sort	lightning strike probability and current simulation for simple structures and floating roof tank
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/0d873a0e418648ca92219faa102ec651
work_keys_str_mv	AT aderibigbeisraeladekitan lightningstrikeprobabilityandcurrentsimulationforsimplestructuresandfloatingrooftank AT michaelrock lightningstrikeprobabilityandcurrentsimulationforsimplestructuresandfloatingrooftank
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Lightning strike probability and current simulation for simple structures and floating roof tank

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