Research on Method for Detecting Pipeline Blockages Based on Fluid Oscillation Theory

Kai Wu, Yujie Feng and Ying Xu
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Kai Wu: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, School of Environment, Huanghe Road No. 73, Harbin 150090, China
Yujie Feng: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, School of Environment, Huanghe Road No. 73, Harbin 150090, China
Ying Xu: School of Energy and Architecture Engineering, Harbin University of Commerce, Xuehai Street No. 1, Harbin 150028, China

Energies, 2022, vol. 15, issue 15, 1-13

Abstract: To address the problem of pipeline blockage detection, a mathematical model of pipeline blockage detection is established based on fluid oscillation theory. This paper proposes a governing equation of the water hammer of fluid motion in a pipeline with a blockage point, and The Dirac function is introduced for dimensionlessness and linearization. The amplitude of the harmonic of each component in different periods is expressed by a Fourier series. The blocking position can be determined by the ratio of the two-component harmonics, and the blocking magnitude can be determined by the blocking attenuation parameters of each component’s harmonics. The numerical simulation and experimental results show that the application of fluid oscillation theory to detect the location and magnitude of pipeline blockages is effective, and the accuracy of the detection method is verified, which lays a theoretical foundation for the application of the proposed method in engineering practice.

Keywords: blockage detection; fluid oscillation theory; pipeline; Fourier series analysis; individual component harmonic (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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