상수관망의 모니터링을 위한 누수의 수리학적 특성

Hydraulic Characteristics of Leakage for the Monitoring of Water

본 연구에서는 누수의 수리학적 특성을 분석하기 위하여 상수관망 파일럿플랜트에서 누수를 재현하고 그에 따른 압력변위를 측정하였다. EPANET을 이용하여 누수로 인한 압력변위를 산정하였고 실험결과와 비교분석하였다. 분석결과, 누수로 인한 압력변위를 EPANET는 실제 측정결과보다 낮게 산정하는 것으로 나타났다. 또한 누수량과 누수로 인한 압력변위간의 상관관계를 찾을 수 있었으며 압력변위는 누수거리 보다 누수량에 더 민감하게 반응하는 것으로 나타났다.

In this study, pressure change due to artificially reproduced leakage was measured to analyze the hydraulic characteristics of leakage in pilot plant of water distribution system. Pressure change due to leakage was estimated by EPANET and compared with the experimental results. It was found that EPANET underestimates the pressure change due to leakage in water distribution system. Furthermore, the relationship between pressure change and leakage amount was defined. The relationship between pressure change and leakage distance from the leakage location to the monitoring location was also defined. It was found that pressure change was more sensitively response to leakage amount than leakage distance.