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http://dx.doi.org/10.11001/jksww.2015.29.4.519

Evaluation of Pressure Reducing Valves performance using Statistical Approach in Water Distribution System : Case Study  

Park, No-Suk (Department of Civil Engineering and Engineering Research Institute, Gyeongsang National University)
Choi, Doo-Yong (K-water Institute)
Lee, Young-Joo (K-water Institute)
Yoon, Sukmin (Department of Civil Engineering and Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of Korean Society of Water and Wastewater / v.29, no.4, 2015 , pp. 519-531 More about this Journal
Abstract
It has been widely accepted that the pressure management of water distribution systems using pressure reducing valves(PRVs) would be an effective method for controlling leakages. A pressure reducing valve (PRV) regulates outlet pressure regardless of fluctuating flow and varying inlet pressure, thereby reducing leakage and mitigating the stress on the water distribution system. However, the operation of a PRV is vulnerable to its mechanical condition and hydraulic operability. In this research, the effect of PRVs installed in water distribution system are evaluated in terms of hydraulic pressure reduction and mechanical performance by analyzing measured pressure data with statistical approach. A statistical approach using the moving average filter and frequency analysis based on fourier transform is presented to detect abnormally operated PRVs that have been densely installed in water distribution system. The result shows that the proposed approach can be a good performance evaluation method by simply measuring pressures for the PRVs.
Keywords
pressure management; pressure reducing valves; controlling leakages; moving average filter and frequency analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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