Journal of the Korean Society of Hazard Mitigation (한국방재학회 논문집)

Korean Society of Hazard Mitigation (한국방재학회)
권호 표지
DOI QR코드

DOI QR Code

Application of Determination Method of Monitoring Location in Pilot Plant for Water Distribution System

상수관망 파일럿플랜트에 대한 수압모니터링 지점선정방법의 적용

  • Received : 2013.09.04
  • Accepted : 2013.10.11
  • Published : 2013.10.31
⟨ Previous Next ⟩

Abstract

In this study, determination method of pressure monitoring location in water distribution system was suggested and applied to the pilot plant for the experimental verification. Monitoring location was estimated by two methods such as pressure contribution analysis and pressure sensitivity analysis. Pressure change due to change of demand was calculated for each junctions. Results of the calculation were used to determine which junction has high pressure sensitivity and pressure contribution to another junctions. Furthermore, results of analysis were compared with the results of experiment. Real leakage was reproduced and pressure change was measured in pilot plant. Pressure change was measured by four pressurer sensors with five different sensor locations. From the results, it was found that the results of determination methods of monitoring location are well matched with the results of experiment.

본 연구에서는 상수관망의 최적의 수압모니터링지점 선정방법을 제시하고 이를 모의하기 위해 구축된 파일럿플랜트에 적용한 실험결과와 비교분석하였다. 모니터링 지점선정방법은 압력기여도분석과 민감도분석으로 구분하여 계산하였다. 각 절점마다 일정한 유량을 필요유량에 합산하여 유량에 변화를 주었으며 이로 인한 다른 나머지 모든 절점의 압력변위를 계산하였다. 이렇게 계산된 결과는 어느 절점에서의 유량변화가 나머지 절점에 어느 정도의 압력변위를 발생시키는지 확인하는 방법으로써 압력기여도와 필요유량변화로 인한 압력의 민감도 분석을 통하여 지점을 선정하였다. 또한 파일럿플랜트에서 실험을 통하여 압력기여도분석결과와 민감도분석결과와 비교하였다. 누수를 실제 재현하고 여러 절점에서의 압력변위를 측정하여 그 결과를 바탕으로 모니터링 지점선정방법을 비교하였다. 네 개의 압력센서를 이용하여 다섯 번 압력센서의 설치위치를 변경하면서 누수에 대한 압력변위를 측정하였다. 실험결과 두 가지 해석방법이 모두 수압모니터링 지점선정방법으로 적합함을 확인할 수 있었다.

Keywords

References

  1. Bae, J.Y. (2003) Determination of optimum monitoring location in water distribution system, Master's thesis, Donga University.
  2. Chung, G.H., Chang, D.I., Yoo, D.G., Jun, H.D., and Kim, J.H. (2009) Determination of Optimal Pressure Monitoring Loca­tions for Water Distribution, Journal of Korea Water Resources Association, Vol. 42, No. 7, pp. 537-546. https://doi.org/10.3741/JKWRA.2009.42.7.537
  3. Jun, H.D., Cho, M.S., Back, C.W., Yoo, D.G., and Kim, J.H. (2008) A methodology to determine realtime monitoring locations for water distribution systems based on the effect index matrix, KWAR Annual Conference, Korea Water Resources Associa­tion, pp. 1428-1432.
  4. Kim, H.G., Kim, H.S., Lee, M.H., Son, M.N., and Kim, S.H. (2005) A study of leakage detection method using frequency analysis and transient flow, Annual Conference of Korean Society of Civil Engineers, pp. 2688-2691.
  5. Kwon, H.J. (2012) Determination of real-time monitoring places in water distribution system using unsteady analysis, Annual Con­ference of Korea Water Resources Association, pp. 265.
  6. Kwon, H.J. (2013) Method of determination of optimum pressure monitoring location for the leakage detection in water distribu­tion system, Annual Conference of Korea Water Resources Association, pp. 297.
  7. Liggett, J.A. and Chen, L. (1994) Inverse transient analysis in pipe networks, Journal of Hydraulic Engineering, Vol. 120, No. 8, pp. 934-955. https://doi.org/10.1061/(ASCE)0733-9429(1994)120:8(934)
  8. Misiunas, D., Vitkovsky, J., Olsson G., Simpson, A., and Lambert, M. (2005) Pipeline break detection using pressure transient monitoring, Journal of Water Resources Planning and Manage­ment, Vol. 131, No. 4, pp. 316-325. https://doi.org/10.1061/(ASCE)0733-9496(2005)131:4(316)
  9. Park, P.I., Hong, S.H., Park, N.S., and Jun, S.Y. (2004) A compari­son of optimization methods for the leakage detection, Journal of Korean Society of Civil Engineers, Vol. 24.
  10. Pudar, P.S. and Liggett, J.A. (1991) Leaks in pipe networks, Jour­nal of Hydraulic Engineering, Vol. 118, No. 7, pp. 1031-1046.
  11. Vitkovsky, J.P., Liggett, J.A., Simpson, A.R., and Lambert, M.F. (2003) Optimal measurement site locations for inverse transient analysis in pipe networks, Journal of Water Resources Plan­ning and Management, Vol. 129, No. 6, 480-492. https://doi.org/10.1061/(ASCE)0733-9496(2003)129:6(480)
  12. Vitkovsky, J.P., Lambert, M.F., Simpson, A.R., and Liggett, J.A. (2007) Experimental observation and analysis of inverse tran­sients for pipeline leak detection, Journal of Water Resources Planning and Management, Vol. 133, No. 6, pp. 519-530. https://doi.org/10.1061/(ASCE)0733-9496(2007)133:6(519)