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Leak detection in single pipelines using hydraulic transients – experimental and field studies,

Jönsson, Lennart LU (2006) Proc 15th APD-IAHR In [Host publication title missing]
Abstract
Analysis of pressure transients in long, single pipelines for water transport has a potential of providing information on hydraulic features such as air/gas pockets,leaks.



Thus the transient measured in a pipeline for sewage water had an oscillation period compatible with the location of a local high point of the pipe profile.



The effect of leaks on transients was studied by means of computer modelling.



It was found that leaks - even small ones of the order of 1 % - interacted significantly with the basic transient.



One effect is a more or less strong attenuation of the pressure oscillations indicating the existence of a leak.



Secondly the leak... (More)
Analysis of pressure transients in long, single pipelines for water transport has a potential of providing information on hydraulic features such as air/gas pockets,leaks.



Thus the transient measured in a pipeline for sewage water had an oscillation period compatible with the location of a local high point of the pipe profile.



The effect of leaks on transients was studied by means of computer modelling.



It was found that leaks - even small ones of the order of 1 % - interacted significantly with the basic transient.



One effect is a more or less strong attenuation of the pressure oscillations indicating the existence of a leak.



Secondly the leak gives rise to extra pressure wave reflexions the time scale of which can be used for locating the leak. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
conference name
Proc 15th APD-IAHR
DOI
10.2495/HY940391
language
English
LU publication?
yes
id
7e139199-de27-4c8f-9f9f-6ae16f74a28e (old id 750451)
date added to LUP
2007-12-13 17:51:35
date last changed
2016-04-16 11:33:02
@inproceedings{7e139199-de27-4c8f-9f9f-6ae16f74a28e,
  abstract     = {Analysis of pressure transients in long, single pipelines for water transport has a potential of providing information on hydraulic features such as air/gas pockets,leaks.<br/><br>
<br/><br>
Thus the transient measured in a pipeline for sewage water had an oscillation period compatible with the location of a local high point of the pipe profile.<br/><br>
<br/><br>
The effect of leaks on transients was studied by means of computer modelling.<br/><br>
<br/><br>
It was found that leaks - even small ones of the order of 1 % - interacted significantly with the basic transient.<br/><br>
<br/><br>
One effect is a more or less strong attenuation of the pressure oscillations indicating the existence of a leak.<br/><br>
<br/><br>
Secondly the leak gives rise to extra pressure wave reflexions the time scale of which can be used for locating the leak.},
  author       = {Jönsson, Lennart},
  booktitle    = {[Host publication title missing]},
  language     = {eng},
  title        = {Leak detection in single pipelines using hydraulic transients – experimental and field studies,},
  url          = {http://dx.doi.org/10.2495/HY940391},
  year         = {2006},
}