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2022 Fiscal Year Final Research Report

Development of Real-Time Water Management Method Utilizing Pressure Transient Measurements in Pipeline Systems

Research Project

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Project/Area Number 21K20605
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0604:Agricultural economics and rural sociology, agricultural engineering, and related fields
Research InstitutionUniversity of Tsukuba (2022)
National Agriculture and Food Research Organization (2021)

Principal Investigator

Asada Yohei  筑波大学, 生命環境系, 助教 (50911252)

Project Period (FY) 2021-08-30 – 2023-03-31
Keywordsパイプライン(管水路) / ストックマネジメント / 漏水検知 / 圧力変動 / 数値シミュレーション
Outline of Final Research Achievements

In this study, we focused on the development of a low-cost, low labor-intensive, and high-precision leak detection method to address the globally significant issue of water leakage in pipes. By combining numerical simulation reproducing transient pressures within the pipes and optimization techniques, we developed a novel method to estimate the leak location and leakage discharge by reproducing the measured pressure transients. The effectiveness of the developed method was verified through model pipe experiments and field pipe experiments, both of which demonstrated leak location estimation errors of approximately 2% or less relative to the total length of the pipe and leakage discharge estimation errors of approximately 30% or less relative to the measured values, thus indicating its effectiveness.

Free Research Field

水理学

Academic Significance and Societal Importance of the Research Achievements

本研究では、圧力変動を利用した新たな漏水検知手法を開発し、その有効性と漏水検知能力について室内実験レベルから現場実験レベルまで幅広く検証することに成功した。このような包括的な実証研究は、管内圧力変動を用いた漏水検知に関する研究分野では数が少なく、学術的意義は高い。本研究結果によって、定期的な圧力変動データの蓄積を行うことで本漏水検知法の現場への実装が可能であることが示された。よって管内の圧力変動データをモニタリングすることで効率的かつ適切かつ公平に水管理を行うことが可能となり、世界的な課題である管水路の漏水や水不足などの諸問題の解決につながると考えられる。

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Published: 2024-01-30  

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