Numerical simulation and measurements on reduced scale structures of floating production storage and offloading units

Protecting offshore structures against the effects of lightning strikes, sparks, and short circuits is a considerable challenge to designers and deployment engineers once the numerous exposed structures, pieces of equipment, and devices make the behavior of electromagnetic phenomena difficult to pre...

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Bibliographic Details
Published in:Electric power systems research 2024-12, Vol.237, p.111004, Article 111004
Main Authors: Panicali, Antonio Roberto, Minoda, Ricardo Hiroshi, Caballero, Pablo Torrez, da Costa, Eduardo Ferreira, Shigihara, Milton, Guimarães, Felipe Ricordi Gismonti, Cavaliere, Carlos André Carreiro, Silva, Vinicius Zimmermann, Ramos, Marcos Leonardo
Format: Article
Language:English
Subjects:
Laboratory
Lightnings
Oil-platform
Protection
Scaled-models
Simulation
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Summary:Protecting offshore structures against the effects of lightning strikes, sparks, and short circuits is a considerable challenge to designers and deployment engineers once the numerous exposed structures, pieces of equipment, and devices make the behavior of electromagnetic phenomena difficult to predict. Numerical simulations are important tools to predict such behavior. However, due to the uncertainties involved, they should be compared against laboratory results. This paper presents the results of the measurements performed on three scaled models and compares them to those obtained with two different applications, CST Studio Suite and NEC-4. We elaborate hypotheses regarding the differences between laboratory results and those obtained using simulation software. As an application, after validating modeling techniques, the paper discusses the results of induction on cable loops on “gooseneck” chimneys commonly used in ships and floating production storage and offloading units. •We compare measurements to simulations on three scaled models;•Simulations were performed with CST Studio Suite and NEC-4;•Differences between measurements and simulations are discussed;•We validate modeling techniques according to laboratory measurements;•Induction on external cabling through ”gooseneck” chimneys are simulated.
ISSN:0378-7796
DOI:10.1016/j.epsr.2024.111004