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Characterization of Chemical Sludge inside Pipes Using Torsional Guided Waves

  • Park, Kyung-Jo (Department of Mechanical Design Engineering, Chonnam National University)
  • 투고 : 2014.01.06
  • 심사 : 2014.05.01
  • 발행 : 2014.06.30

초록

A new method is presented that uses guided wave techniques for sludge and blockage detection in long-range pipelines. Existing techniques have the limitations that the sludge position needs to be known a priori and the area to be inspected needs to be accessible. A novel guided wave technique has been developed that allow the sludge or blockages to be detected remotely without the need to access the specific location where the pipe is blocked, nor to open the pipe. The technique measures the reflection of guided waves by sludge that can be used to accurately locate the blocked region. The effectiveness of the proposed technique is demonstrated and confirmed by experimental measurements.

키워드

참고문헌

  1. R. C. Sarmento, G. S. Ribbe, and L. A. Azevedo, 2004, "Wax blockage removal by inductive heating of subsea pipelines", Heat Transfer Engineering, Vol. 25, pp. 2-12. https://doi.org/10.1080/01457630490495797
  2. P. J. Rathbone, 2005, "Sludge characterization for ultrasonic wave guide blockage testing", Technical Report of BFNL Nexia Solutions, pp. 180-187.
  3. T. P. Bott, 1995, "Fouling of Heat Exchangers", Elsevier, New York.
  4. C. Kuchpil, M. Gonalves and L. Marquez, 2002, "Blockage location and remediation in subsea pipelines", Deep Offshore Technology Conference, New Orleans, Louisiana, pp. 691-700.
  5. M. F. Salis and D. J. Oldham, 2001, "The development of a rapid single spectrum method for determining the blockage characteristics of a finite length duct", Journal of Sound and Vibration, Vol. 243, pp. 625-640. https://doi.org/10.1006/jsvi.2000.3433
  6. J. B. Kim, S. H. Jung J. H. Moon, T. Y. Kwon and G. S. Cho, 2010, "Development of tomographic gamma-ray san method for industrial plants" Journal of Nondestructive Testing, Vol. 30, pp. 20-30.
  7. IAEA, 2008, "Industrial Gamma Process Tomography", TEC DOC-1589.
  8. R. Caradente, J. Ma and P. Cawley, 2010, "The scattering of the fundamental torsional mode from axisymmetric defect with varying depth profile in pipes", Journal of Acoustical Society of America, Vol. 127, pp. 3440-3448. https://doi.org/10.1121/1.3373406
  9. J. Hua, J. Mu and J. Rose, 2011, "Guided wave propagation in single and double layer hollow cylinders embedded in infinite media", Journal of Acoustical Society of America, Vol. 129, pp. 691-700. https://doi.org/10.1121/1.3531807
  10. K. J. Park and C. Y. Kim, 2013, "Identification of the properties of soils and defect detection of buried pipes using torsional guided waves", Journal of the Korean Society for Power System Engineering, Vol. 17, pp. 56-62. https://doi.org/10.9726/kspse.2013.17.2.056
  11. J. L. Rose, 1999, "Ultrasonic Waves in Solid Media", Cambridge University Press, Cambridge.
  12. B. N. Pavlakovic, M. J. Lowe, D. N. Alleyne and P. Cawley, 1997, "DISPERSE: A general program for creating dispersion curves", Review of Progress in Quantitative NDE Vol. 16, pp. 185-192.
  13. J. Ma, F. Simonetti and M. J. Lowe, 2006, "Scattering of the fundamental torsional mode by an axisymmetric layer inside a pipe", Journal of the Acoustic Society of America, Vol. 120, pp. 1871-1880. https://doi.org/10.1121/1.2336750
  14. K. J. Park, W. S. Kang and D. J. Kang, 2010, "Flaw detection of petrochemical pipes using torsional waves", Journal of the Korean Society for Power System Engineering, Vol. 14, pp. 46-51.

피인용 문헌

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  4. 첩릿변환을 이용한 배관 축방향 결함검출 vol.20, pp.4, 2016, https://doi.org/10.9726/kspse.2016.20.4.026