{"title":"The Undesirable Interaction of Lightning Strike and Floating Roof Tanks","authors":"A. Adekitan, M. Rock","doi":"10.1109/ICLPandSIPDA54065.2021.9627432","DOIUrl":null,"url":null,"abstract":"A lightning strike to a floating roof tank (FRT) can induce fire, and if the fire is not properly managed, a full surface fire and a complete tank boil over may ensue. The optimal approach is to prevent lightning-induced sparks rather than firefighting. Designing a lightning protection system (LPS) for a FRT is quite intricate due to its large tank dimensions and the movable roof. This study explores the probability of a direct lightning strike to a floating roof tank using the dynamic electro-geometrical model. The impact of various tank dimensions on strike probability was investigated, and the result shows that the probability of a strike to the rim edge of the FRT reduces with tank diameter and increases with tank height. Various LPS air termination arrangements are proposed to be deployed on and around a FRT to channel the lightning current and associated energy via multiple flow paths. Challenges that may hinder implementation are also identified.","PeriodicalId":70714,"journal":{"name":"中国防雷","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"中国防雷","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.1109/ICLPandSIPDA54065.2021.9627432","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A lightning strike to a floating roof tank (FRT) can induce fire, and if the fire is not properly managed, a full surface fire and a complete tank boil over may ensue. The optimal approach is to prevent lightning-induced sparks rather than firefighting. Designing a lightning protection system (LPS) for a FRT is quite intricate due to its large tank dimensions and the movable roof. This study explores the probability of a direct lightning strike to a floating roof tank using the dynamic electro-geometrical model. The impact of various tank dimensions on strike probability was investigated, and the result shows that the probability of a strike to the rim edge of the FRT reduces with tank diameter and increases with tank height. Various LPS air termination arrangements are proposed to be deployed on and around a FRT to channel the lightning current and associated energy via multiple flow paths. Challenges that may hinder implementation are also identified.
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