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    Increasing Performance of Water Distribution Network by Using Pressure Management and Database Integration
    (Asce-Amer Soc Civil Engineers, 2019) Gungor, Mahmud; Yarar, Ufuk; Canturk, Umit; Firat, Mahmut
    The performance of a water distribution networks (WDN) varies according to various factors such as physical, operational, and environmental and should be monitored to reduce and control the water losses. This study discussed the methods and tools applied to reduce, control, and monitor the leaks in a water distribution system and the results obtained after their application to a real WDS. The aim was to improve the performance of the WDS in terms of water losses and leaks monitoring and management. Denizli, a city in western Turkey, was selected as the study area. In the application area, a method with high-tech solutions for pressure management using demand modulating pressure reduction valve (PRV) controllers was applied to reduce water losses. Furthermore, data integration with an existing supervisory control and data acquisition (SCADA) system, GIS, customer information system (CIS) databases, and district metered areas (DMAs) were applied as essential for the effective water management. The results obtained by applying pressure management strategy using PRVs at the DMA scale showed that significant saving were achieved by giving less water to the system. In addition, the pressure changes and input flow rates and volumes in the DMAs were monitored in real-time by using the SCADA system to increase the performance of the WDS.
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    Öğe
    Reduction of water losses by rehabilitation of water distribution network
    (Springer, 2017) Gungor, Mahmud; Yarar, Ufuk; Firat, Mahmut
    Physical or real losses may be indicated as the most important component of the water losses occurring in a water distribution network (WDN). The objective of this study is to examine the effects of piping material management and network rehabilitation on the physical water losses and water losses management in a WDN. For this aim, the Denizli WDN consisting of very old pipes that have exhausted their economic life is selected as the study area. The fact that the current network is old results in the decrease of pressure strength, increase of failure intensity, and inefficient use of water resources thus leading to the application of the rehabilitation program. In Denizli, network renewal works have been carried out since the year 2009 under the rehabilitation program. It was determined that the failure rate at regions where network renewal constructions have been completed decreased down to zero level. Renewal of piping material enables the minimization of leakage losses as well as the failure rate. On the other hand, the system rehabilitation has the potential to amortize itself in a very short amount of time if the initial investment cost of network renewal is considered along with the operating costs of the old and new systems, as well as water loss costs. As a result, it can be stated that renewal of piping material in water distribution systems, enhancement of the physical properties of the system,provide significant contributions such as increase of water and energy efficiency and more effective use of resources.