한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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고압 배관망에서 배관 손상에 의한 누출 및 관내 저압확장파의 전파 특성 해석

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

  • 김왕연 (경원대학교 기계.자동차공학과 대학원) ;
  • 하종만 (한국가스공사 연구개발원) ;
  • 하태웅 (경원대학교 기계.자동차공학과)
  • 발행 : 2008.02.01
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초록

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.

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참고문헌

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피인용 문헌

  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