The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Propagation of Negative Pressure Wave Due to Leak Through Damaged Hole in High Pressure Piping System

고압 배관망에서 배관 손상에 의한 누출 및 관내 저압확장파의 전파 특성 해석

  • 김왕연 (경원대학교 기계.자동차공학과 대학원) ;
  • 하종만 (한국가스공사 연구개발원) ;
  • 하태웅 (경원대학교 기계.자동차공학과)
  • Published : 2008.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

The safe operation of high pressure pipe line systems is of significant importance. Leaks due to faulty operation from the pipelines can lead to considerable product losses and to exposure of community to dangerous gases. There are several leak detection methods of pipeline network which have recently been suggested. The negative pressure wave detection technology, which has advantages of short time detection availability, accurate leaking location estimate capability and cost effective, is concentrated in this study. Theoretical analysis of the flow characteristics for leaking through a hole on the pipe wall has been performed by using Fluent 6.3, commercial CFD package. The results of 3-dimensional analysis near leaking hole confirm the occurrence of negative pressure wave, and the results of 2-dimensional analysis verify the characteristics of propagation of the wave which travels with speed equal to the speed of sound in the pipeline contents. Characteristics of leakage and pressure in a pipe with a hole have been analyzed for the various pipe and hole sizes.

Keywords

References

  1. Zhang, J., 1997, 'Designing a Cost Effective and Reliable Pipeline Leak Detection System,'Pipes and Pipeline International, Vol. 42, No. 1, pp. 20-26
  2. Weil, G.J., 1993, 'Non Contact, Remote Sensing of Burried Water Pipeline Leaks Using Infrared Thermography,'Water Resources Planning and Management and Urban Water Resources, pp. 404-407
  3. Graf, F.L., 1990, 'Using Ground - Penetrating Radar to Pinpoint Pipeline Leaks,'Materials Performance, Vol. 29, No. 4, pp. 27-29
  4. Brodetsky, I. and Savic, M., 1993, 'Leak Monitoring System for Gas Pipeline,'Proceedings-ICASSP, IEEE International Conference on Acoustic, Speech and Signal Processing, Vol. 3, pp. 111. 17-111. 20
  5. M. R. Lee and J. H. Lee, 2000, 'Acoustic Emission Technique for Pipeline Leak Detection,'Key Engineering Materials, Vol. 187, No. 2, pp. 887-892 https://doi.org/10.4028/www.scientific.net/KEM.183-187.887
  6. Reason, J., 1987, 'Acoustic Leak Detection Provides Early Warning of Piping Failure,'Power 131, pp. 63-64
  7. Surgeon, M. and Wevers, M., 1999, 'Modal Analysis of Acoustic Emission Signal from CFRP Laminates,' NDT&E International, No. 32. pp. 311-322 https://doi.org/10.1016/S0963-8695(98)00077-2
  8. Sivathanu, Y., 2003, 'Natural Gas Leak Detection in Pipelines,'Technology Status Report, En'Urga Inc., West Lafatette, IN
  9. Furness, R.A., 1985, 'Modern Pipeline Monitoring Techniques - Part 1 Real Time Computer Models,' Pipes and Pipelines International., Vol, 30, No. 3, pp. 7-11
  10. De. Freitas, R.D.G., Maitelli, A.L. and Salazar, A.O., 2004, 'An Wavelet Approach to Pipeline Leak Detection by Pressure Analysis,'Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering, OMAE 3, art. No. 51219, pp. 101-104
  11. Mears, M.N., 1993, 'Real World Applications of Pipeline Leak Detection,'Proceedings of the International Conference on Pipeline Infrastructure II, pp. 189-209
  12. Liou, C.P., 1993, 'Pipeline Leak Detection Based on Mass Balance,'Proceedings of the International Conference on Pipeline Infrastructure II, pp. 175-188
  13. Griebenow, G. and Mears, M., 1999, 'Leak Detection Implementation: Modeling and Tuning Methods,'American Society of Mechanoical Engineers, Petroleum Division, Vol. 19, pp. 9-18
  14. Diane, J., Hovey, PHD., Edward, J. and Farmer, P.E., 2002, 'Pressure Point Analysis Leak Detection Methodology, Performance & Application,'EFA Technologies Inc., Prepared for Presentation at the AICHE Spring Meeting

Cited by

  1. False Alarm Filtering Algorithm Development of Pipeline Leak Detection System using Flow Volume Balance vol.53, pp.10, 2016, https://doi.org/10.5573/ieie.2016.53.10.095