Analysis of Flow and Economic Benefit Through Water Leakage Detection and Repair

누수탐사에 의한 유량분석 및 보수의 경제적 효과

  • 이승철 ((주)대우엔지니어링 상하수도부) ;
  • 이상일 (동국대학교 토목환경공학과)
  • Received : 2004.09.08
  • Accepted : 2005.01.24
  • Published : 2005.02.15

Abstract

Field measurement data on water leakage are not readily available and it causes inaccurate assessment of water demand and poor supply planning. In this study, the procedure for leakage detection and unaccounted water calculation is proposed and applied to a city. The city has suffered from the significant amount of leak water and the financial loss as a result. Measurements were made for pressure and flow at 18 locations before and after the repair. Repair of the leakage increased pressure up to $2.0kgf/cm^2$ and saved 17.1% of water supply from distribution reservoirs. Monetary value of annual water savings for the entire city amounts to 1 billion won. It is believed that leakage detection and data analysis conducted in this study will contribute to the change of current practice and to the establishment of better water supply management system.

Keywords

Acknowledgement

Supported by : 동국대학교

References

  1. 손광익, 지홍기, 이순탁 (2001) 압력조절에 의한 누수절감 효과, 한국수자원학회 학술발표희. pp.49-52
  2. 이길성, 조범준 (2000) 역산문제를 이용한 관망에서의 누수 탐지, 한국수자원학회 학술발표회. pp. 873-878
  3. 이승철, 이상일 (2002) 누수탐사에 의한 유량측청자료 분석, 대한토목학회 학술발표회. pp.208
  4. 이현동, 김만기, 정원식, 곽필재 (2001) 효율적인 누수관리를 위한 종합적인 전략 및 현장적용, 대한상하수도학회 춘계 학술발표회. pp.49-52
  5. 하성룡, 류연희 (2000) 확률적 신경망을 기반으로 한 수도관 누수예측, 대한상하수도학희 추계학술발표회. pp. 19-22
  6. 한국수자원공사 (2001). http://www.kowaco.or.kr/intro/i_e/i_ed/i_edc/i_edce/watercol7-3.htm
  7. 환경부 (1997) 상수도시설기준. pp. 466-467
  8. 환경부 (2004) 2003 상수도통계
  9. YJ 시 (2002) 장흥, 양주, 광백급수구역 상수도누수탐사 실시용역 보고서. pp. 2-62
  10. Bach, N.L., Fujiwara, O., and Luong, H.T., (2000). Optimal Fund Assignment and Allocation Models for Pipe Repair Maintenance in Leaky Water Distribution Networks, Water Resour. Res., 36(5), pp. 1315-1324 https://doi.org/10.1029/1999WR900334
  11. Clark, RM., Stafford, C.L, and Goodrich, J.A., (1982). Water Distribution Systems: Spatial and Cost Evaluation, J. Water Res. Plann. Manage. Div. Am. Soc. Civ. Eng., 108(3), pp. 243-256
  12. Steven G.B., and Gayatri N., (2004). Leak Estimation in Water Distribution Systems by Statistical Analysis of Flow Readings, J. Water Res. Ping. and Mgmt., 130(4), pp. 321-329 https://doi.org/10.1061/(ASCE)0733-9496(2004)130:4(321)
  13. Li, D., and Haimes, Y.Y., (1992a). Optimal Maintenance-Related Decision Marking for Deteriorating Water Distribution Systems, I, Semi-Markovian Model for a Water Main, Water Resour. Res., 28(4), pp. 1053-1061
  14. Li, D., and Haimes, Y.Y.,(1992b). Optimal Maintenance-Related Decision Marking for Deteriorating Water Distribution Systems, 2, Multilevel Decomposition Approach, Water Resour. Res., 28(4), pp. 1063-1070
  15. Shamir, U., and Howard, C. D. D., (1979). An Analytical Approach to Scheduling Pipe Replacement, J. Am. Water Works Assoc., 71(5), pp. 248-258 https://doi.org/10.1002/j.1551-8833.1979.tb04284.x
  16. Stacha. J.H., (1978). Criteria for Pipeline Replacement, J. Am. Water Works Assoc., 70(5), pp. 256-258 https://doi.org/10.1002/j.1551-8833.1978.tb06856.x
  17. Walski, T.M., and Pellicia A., (1982). Economic Analysis of Bai, R., Tien, C. (1997) 'Particle Detachment in Deep Bed Water Main Breaks', J. Am. Water Works Assoc., 74(3), pp. 140-147 https://doi.org/10.1002/j.1551-8833.1982.tb04874.x