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Quantifying Acoustic and Pressure Sensing for In-Pipe Leak Detection

[+] Author Affiliations
Atia E. Khalifa, Dimitris M. Chatzigeorgiou, Kamal Youcef-Toumi

Massachusetts Institute of Technology, Cambridge, MA

Yehia A. Khulief, Rached Ben-Mansour

King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia

Paper No. IMECE2010-40056, pp. 489-495; 7 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 13: Sound, Vibration and Design
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4450-2
  • Copyright © 2010 by ASME


Experiments were carried out to study the effectiveness of using inside-pipe measurements for leak detection in plastic pipes. Acoustic and pressure signals due to simulated leaks, opened to air, are measured and studied for designing a detection system to be deployed inside water networks of 100 mm (4 inch) pipe size. Results showed that leaks as small as 2 l/min can be detected using both hydrophone and dynamic pressure transducer under low pipe flow rates. The ratio between pipe flow rate and leak flow rate seems to be more important than the absolute value of leak flow. Increasing this ratio resulted in diminishing and low frequency leak signals. Sensor location and directionality, with respect to the leak, are important in acquiring clean signal.

Copyright © 2010 by ASME



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