Leak detection and experimental and theoretical comparison of characteristics of transient flow in polyethylene pipelines

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Mirzaie Jeshni Mostafa; FATHI MOGHADAM MANOOCHEHR; Sabet Imani Alireza; AKBARI ASGHAR

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Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2019 | Volume:51 | Issue:3 Page(s): 547-556

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Title

Leak detection and experimental and theoretical comparison of characteristics of transient flow in polyethylene pipelines

Author(s)

Mirzaie Jeshni Mostafa | FATHI MOGHADAM MANOOCHEHR | Sabet Imani Alireza | AKBARI ASGHAR | Issue Writer Certificate

Keywords

Transient FlowQ2

ViscoelasticQ1

Pressure wave velocityQ1

Reynolds numberQ2

excess pressureQ1

Abstract

Polyethylene pipes are widely used in pressurized water systems. In the design and interpretation of the ram-trapped signal for diagnostic purposes, Viscoelastic behavior of polyethylene tubes should be taken into account. The aim of this study is to detect leakage, and experimental and theoretical comparison of Pressure wave velocity and over pressure of Transient Flow in polyethylene pipes with different Reynolds number. To achieve the objectives of this paper, a physical model was developed in laboratory of the Faculty of Water Sciences Engineering of Shahid Chamran University of Ahwaz and developed two different models of control and a leakage system was and were conducted a number of water-hammer tests. The leakage accuracy in this model increased with increase of Reynolds number. The highest and the lowest percent of the relative error for computational and experimental leakage were estimated 48. 8% and 2. 02 through a leak hole of 5 mm for experiments with Reynolds numbers of 1282. 76 and 12973. 55, respectively. Also, this inaccurate study shows the relationship between the theory of compressive velocity and overpressure in the polyethylene transfer pipes, so that the compressive velocity obtained from theoretical relationships is less than its actual value, as well as the relative error of the overpressure in leakage experiments Increasing the Reynolds number increases between the amount of the laboratory and the theory.

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APA: Copy

Mirzaie Jeshni, Mostafa, FATHI MOGHADAM, MANOOCHEHR, Sabet Imani, Alireza, & AKBARI, ASGHAR. (2019). Leak detection and experimental and theoretical comparison of characteristics of transient flow in polyethylene pipelines. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 51(3 ), 547-556. SID. https://sid.ir/paper/165549/en

Vancouver: Copy

Mirzaie Jeshni Mostafa, FATHI MOGHADAM MANOOCHEHR, Sabet Imani Alireza, AKBARI ASGHAR. Leak detection and experimental and theoretical comparison of characteristics of transient flow in polyethylene pipelines. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2019;51(3 ):547-556. Available from: https://sid.ir/paper/165549/en

IEEE: Copy

Mostafa Mirzaie Jeshni, MANOOCHEHR FATHI MOGHADAM, Alireza Sabet Imani, and ASGHAR AKBARI, “Leak detection and experimental and theoretical comparison of characteristics of transient flow in polyethylene pipelines,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 51, no. 3 , pp. 547–556, 2019, [Online]. Available: https://sid.ir/paper/165549/en

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