Study on Vibration Monitoring of Water Hammer in Pipeline Structure

Author(s):  
Shu-Yong Liu ◽  
Pan Su ◽  
Xin-Yu Liu ◽  
Xiang-Fei Liu ◽  
Chamika Dias
2019 ◽  
Vol 19 (1) ◽  
pp. 1-12
Author(s):  
Tae-Kook Park ◽  
Yong-Bum Lee ◽  
Jae-Hyeong Kim ◽  
Ki-Chun Lee ◽  
Dong-Cheon Baek

Kerntechnik ◽  
2017 ◽  
Vol 82 (3) ◽  
pp. 280-283 ◽  
Author(s):  
C. Bratfisch ◽  
M. K. Koch
Keyword(s):  

Author(s):  
Pallab Kumar Gogoi ◽  
Mrinal Kanti Mandal ◽  
Ayush Kumar ◽  
Tapas Chakravarty

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4071
Author(s):  
Michał Kubrak ◽  
Agnieszka Malesińska ◽  
Apoloniusz Kodura ◽  
Kamil Urbanowicz ◽  
Michał Stosiak

It is well known that the water hammer phenomenon can lead to pipeline system failures. For this reason, there is an increased need for simulation of hydraulic transients. High-density polyethylene (HDPE) pipes are commonly used in various pressurised pipeline systems. Most studies have only focused on water hammer events in a single pipe. However, typical fluid distribution networks are composed of serially connected pipes with various inner diameters. The present paper aims to investigate the influence of sudden cross-section changes in an HDPE pipeline system on pressure oscillations during the water hammer phenomenon. Numerical and experimental studies have been conducted. In order to include the viscoelastic behaviour of the HDPE pipe wall, the generalised Kelvin–Voigt model was introduced into the continuity equation. Transient equations were numerically solved using the explicit MacCormack method. A numerical model that involves assigning two values of flow velocity to the connection node was used. The aim of the conducted experiments was to record pressure changes downstream of the pipeline system during valve-induced water hammer. In order to validate the numerical model, the simulation results were compared with experimental data. A satisfactory compliance between the results of the numerical calculations and laboratory data was obtained.


2021 ◽  
Vol 43 ◽  
pp. 2290-2295
Author(s):  
N. Nithyavathy ◽  
S. Arun Kumar ◽  
K.A. Ibrahim Sheriff ◽  
A. Hariram ◽  
P. Hare Prasaad

2021 ◽  
Vol 30 (1) ◽  
pp. 677-688
Author(s):  
Zhenzhuo Wang ◽  
Amit Sharma

Abstract A recent advent has been seen in the usage of Internet of things (IoT) for autonomous devices for exchange of data. A large number of transformers are required to distribute the power over a wide area. To ensure the normal operation of transformer, live detection and fault diagnosis methods of power transformers are studied. This article presents an IoT-based approach for condition monitoring and controlling a large number of distribution transformers utilized in a power distribution network. In this article, the vibration analysis method is used to carry out the research. The results show that the accuracy of the improved diagnosis algorithm is 99.01, 100, and 100% for normal, aging, and fault transformers. The system designed in this article can effectively monitor the healthy operation of power transformers in remote and real-time. The safety, stability, and reliability of transformer operation are improved.


2020 ◽  
Vol 130 ◽  
pp. 103555
Author(s):  
Takashi Hibiki ◽  
Somboon Rassame ◽  
Wenbing Liu ◽  
Lutao Wang ◽  
Quanbin Zhao ◽  
...  

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