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Utvärdering och införande av ANN-modell tillförnyelseplanering av vattenledningsnät : Samarbete med Eskilstuna Strängnäs energi och miljö, ESEM / Evaluation of ANN-model for application to renewal planning of water supply networks : In association with Eskilstuna Strängnäs energi och miljö, ESEM

Structured and long-term planning is an important part of the work with the renewal of water supply networks. This requires well-founded assessments and methods for evaluating the annual need for renewal for a sustainable and healthy future. Evaluating the condition of a management object has been a complex task. This is due to limited accessto the various parts of the water supply network and the fact that physical, operational and environmental factors affect pipelines in different ways. Since experience and knowledge have been developed about, for example, joint methods or the durability of pipe material, this has meant that several different pipe materials are underground. There are various useful methods for evaluation of the condition of the water supply network. Recently, mathematical models have begun to be used to analyse the status and estimated lifespan of lines through data on pipes and external factors. In this study, an ANN model from Svenskt Vatten was used to evaluate the organization’s geodata for the model and to study the relationship between risk management that models calculate and reported operational disruptions. The use of the model requires that large amounts of data need to be compiled and adapted to valid values.The results show that most of the water supply network in the study area can be used to set prediction values with the model by compiling and adapting attribute values. Several objects were excluded due to deficiencies in management attributes. Some comparisons can be made between estimated risk water pipes and reported operational disruptions. The conclusion of the study is that the model could be an important complement to future renewal planning. Assessed risk water pipes can provide a good indication of which parts of the pipeline network need to be evaluated in more depth for possible renewal.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kau-85972
Date January 2021
CreatorsAlmrin, Tim
PublisherKarlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)
Source SetsDiVA Archive at Upsalla University
LanguageSwedish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/bachelorThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess

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