Detection of Leakage in Pipe Networks Using Transient and Simulated Annealing

Chao Chih Lin, Hund-Der Yeh

研究成果: Conference contribution同行評審

摘要

A new approach of inverse transient analysis, called LDSA, is proposed to detect leaks in pipe networks based on the combination of transient flow simulations and simulated annealing. Through this method, the information of steady-state head distribution is first determined by a pipe network analysis model called PNSA. The downstream valve is suddenly closed to generate a transient event, and the method of characteristics is applied to simulate the transient flow. Then, the optimization technique, simulated annealing (SA), is used to solve the nonlinear problem with a least-squares criterion objective function. A synthetic pipe network system is considered, and two cases are chosen to test the performance of LDSA in numerical experiments. In the case studies, the LDSA demonstrates that the leak locations and orifices in the synthetic network can be accurately identified. The new approach is effective to estimate the leakage and orifice size in these two cases. The results show successful applications and promising features of the proposed method.

原文English
主出版物標題World Environmental and Water Resources Congress 2014
主出版物子標題Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress
編輯Wayne C. Huber, Wayne C. Huber
發行者American Society of Civil Engineers (ASCE)
頁面383-390
頁數8
ISBN(電子)9780784413548
DOIs
出版狀態Published - 1 一月 2014
事件World Environmental and Water Resources Congress 2014: Water Without Borders - Portland, United States
持續時間: 1 六月 20145 六月 2014

出版系列

名字World Environmental and Water Resources Congress 2014: Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress

Conference

ConferenceWorld Environmental and Water Resources Congress 2014: Water Without Borders
國家United States
城市Portland
期間1/06/145/06/14

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