{"title":"An Overview of the Evolution of Degradation Mechanisms for Leaks in Metal Pipes and Joints and the Effectiveness of LLM and LMD Methods","authors":"Alaa Agala, Muhammed Khan, A. Starr","doi":"10.2139/ssrn.3945126","DOIUrl":null,"url":null,"abstract":"Leakage detection and localization in pipelines has become an important aspect of water management systems. Since monitoring leakage in large-scale water distribution networks (WDNs) is a challenging task, the need to develop a reliable and robust leak detection and localization technique against degradation mechanisms is essential for loss reduction in potable networks. This paper presents a review of all the past relevant investigations to demonstrate the effectiveness and limitations of the existing leakage detectionmethods (LDMs) and leakage localization methods (LLMs) in the context of those degradation mechanisms that are inevitable in pipes and joints. We find that extensive research efforts have been reported in relation to leakage detection and localization technologies. However, very little discussion is available to justify the suitability of a leakage detection method for a given degradation mechanism. The existing review papers do not cover or connect past efforts from the start of a degradation mechanism that leads to changes in the mechanical strength (such as a reduction in fracture toughness) of pipes and results in crack propagation and leakage. In this paper, we provide discussion of all these interrelated and inter-dependent stages. Using this discussion, the effectiveness of existing LDMs and LLMs in respect of prominent degradation mechanisms is analysed and the key challenges in the current methods are highlighted.","PeriodicalId":162865,"journal":{"name":"TESConf 2021 - 10th International Conference on Through-Life Engineering Services","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"TESConf 2021 - 10th International Conference on Through-Life Engineering Services","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3945126","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
Leakage detection and localization in pipelines has become an important aspect of water management systems. Since monitoring leakage in large-scale water distribution networks (WDNs) is a challenging task, the need to develop a reliable and robust leak detection and localization technique against degradation mechanisms is essential for loss reduction in potable networks. This paper presents a review of all the past relevant investigations to demonstrate the effectiveness and limitations of the existing leakage detectionmethods (LDMs) and leakage localization methods (LLMs) in the context of those degradation mechanisms that are inevitable in pipes and joints. We find that extensive research efforts have been reported in relation to leakage detection and localization technologies. However, very little discussion is available to justify the suitability of a leakage detection method for a given degradation mechanism. The existing review papers do not cover or connect past efforts from the start of a degradation mechanism that leads to changes in the mechanical strength (such as a reduction in fracture toughness) of pipes and results in crack propagation and leakage. In this paper, we provide discussion of all these interrelated and inter-dependent stages. Using this discussion, the effectiveness of existing LDMs and LLMs in respect of prominent degradation mechanisms is analysed and the key challenges in the current methods are highlighted.