Developing a methodology for finding network water losses using information technologies

Bektaş, Hayrettin Onur
This study aims to develop an integrated methodology for finding water leaks in a water distribution network. The integrated methodology is formed from SCADA System, Customer Information System (CIS), and Geographic Information System. The methodology is based on forming district-metered areas (DMA) and sub-DMAs in pressure zones by isolation of the network. Leaking spots in the network are localised by step testing within the DMA. With leak noise loggers leaking spots are localized with an increased accuracy and finally pinpointed by ground microphones. Minimum night flows are observed from the SCADA system before and after the repairs of the leaks to calculate physical water loss percentage in the DMA. Monthly non-revenue water percentage is calculated using the data obtained from SCADA and CIS. With a buffer analysis on the water distribution network data, the benefit of the leak noise loggers is maximized and the working time with the ground microphones are minimized. The methodology is applied in two different DMAs in Antalya water distribution network with different characteristics. In the first DMA, only the developed methodology is applied and a decrease of 19.2% is achieved in physical water losses. In the second DMA, pressure reduction is added to the methodology and a decrease of 4.9% is achieved.


New methodologies for optimal operation of water distribution systems for water quality purposes
Altan Sakarya, Ayşe Burcu; Mays, LW (1998-01-01)
Two new methodologies have been developed for determining the optimal operation of water distribution systems for water quality purposes. These methodologies are based upon describing the operation as a discrete time optimal control problem that can be used to determine the optimal operation schedules of the pumps in distribution systems. One solution methodology is based upon a mathematical programming approach and the second methodology is based upon a simulated annealing approach. These two methodologies...
A methodology to assess suitability of a site for small scale wet and dry CSP systems
Uzgoren, Eray; Timur, Eray (2015-06-25)
This study presents a methodology to assess suitability of a site for small scale concentrated solar power (CSP) systems for its energy conversion efficiency and make-up water requirement. Energy conversion efficiency of CSPs relies not only on the level of direct solar radiation but also on the performance of the cooling system. Regions with high solar potential have to deal with heat rejection at elevated temperatures which causes reduced energy conversion efficiencies due to high condenser temperatures. ...
Simulation of streamflow using hydrologic modeling system HEC-HMS
Erşahin, Berkan.; Kentel Erdoğan, Elçin; Department of Earth System Science (2020)
Basin models are fundamental for water resources assessment, analyzing quality and quantity of streamflow, managing water distribution systems, protecting and developing groundwater systems, flood protection, and water-supply forecasting. The integration of all hydrologic processes with their interconnections to each other at the basin scale is required for basin models. Mathematical basin models such as HEC-HMS are used for simulating hydrological processes in basin-scale to understand basin response to st...
Considerations on multiobjective optimization regarding municipal water supply systems
Bektaş, Hayrettin Onur; Nuri, Merzi; Department of Civil Engineering (2020-9)
Optimal water supply system design has always been a challenge for researchers. While most optimization studies focus mainly on pipe diameter sizing, recent works are being done for optimizing other elements of water supply systems. The design of water supply system can be discussed from either single or multiobjective optimization point of view. Multiobjective optimization does not only consider the costs of the system but also some performance measures such as resilience. In this study, a multiobjective o...
Investigation of sustainable development potential for Ulubey Aquifer System, Turkey
Burcu, Unsal; Hasan, Yazicigil (2014-06-06)
This study investigates sustainable development potential for Ulubey aquifer system which serves as an important water supply for Usak province (Turkey). In recent years, growing population, accelerating industrial activities and decreasing rainfall, as well as contamination of the surface water resources, made groundwater indispensable to meet the freshwater demands of Usak province. Therefore, a sustainable groundwater development plan has to be set up by determining the sustainable yield of the system, w...
Citation Formats
H. O. Bektaş, “Developing a methodology for finding network water losses using information technologies,” M.S. - Master of Science, Middle East Technical University, 2010.