Loading...

Condition Monitoring of Water Pipelines by Using Acoustic Method a Study of Leak Detection in ABFA

Alimoradi, Farid | 2008

659 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 39273 (01)
  4. University: Sharif University of Technology; Lulea University of Technology
  5. Department: Industrial Engineering
  6. Advisor(s): Mostafavi, Mostafa
  7. Abstract:
  8. Water is crucial to human being. We use water for a wide variety of uses daily. However, leakage has caused substantial water loss to our precious processed water. The major contributor to non-revenue water in Iran is pipeline leakages. The water industry in the nation has invested in equipment to detect and localize leaks in water distribution systems. One of the equipment mentioned is acoustic-based. The principle of acoustic is that whenever a leak is present in a pipeline, noise is generated and will travel along the pipeline. The acoustic leak detection method is then derived by calculating the distance traveled by this noise generated by the leak. Different equipment based on acoustic theory are used for different types of leak localization, be it surface localization, pinpointing leak on a stretch of pipe, or in the water transmission mains. Acoustic based equipments are effective, but have limitations on pipe size, materials, pipe length and also surrounding conditions. This paper presents the study on the leak detection strategies in Iran, where a comprehensive survey that includes zone measurement, pre-location and pinpoint location survey is adopted. In addition, the accuracy of leak noise correlator in pinpointing leaks in certain stretches of pipelines is studied. Analysis on the pipe length and surrounding conditions factors to the accuracy of correlation are carried out and it is found that both factors play significant roles in pinpointing leak in water distribution pipelines. It is suggested that precautionary measures and steps to be taken during correlation process so as to improve its reliability. More advanced technology, especially the in-line detection technology is suggested to be developed for better leak detection
  9. Keywords:
  10. Maintenance ; Water and Waste Water Company ; Water Leakage ; Water Pipeline ; Leak Detection ; Pipelines Distribution Network

 Digital Object List

 Bookmark

No TOC