scholarly journals Application of a decision-support system for water loss reduction to the case of a water supply system in Lithuania

2016 ◽  
Author(s):  
E. Oertlé ◽  
A. Jurkienė ◽  
M. Rimeika
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Water Supply ◽  
Support System ◽  
Water Loss ◽  
Supply System ◽  
Water Supply System ◽  
Loss Reduction

scholarly journals USE OF HYDRAULIC MODEL FOR WATER LOSS REDUCTION / HIDRAULINIO MODELIO TAIKYMAS VANDENS NUOSTOLIAMS MAŽINTI

2016 ◽  
Vol 8 (4) ◽  
pp. 461-467 ◽  
Author(s):  
Mindaugas Rimeika ◽  
Anželika Jurkienė
Keyword(s):  
Water Supply ◽  
Water Loss ◽  
Model Calibration ◽  
System Optimization ◽  
Hydraulic Modeling ◽  
Hydraulic Model ◽  
Supply System ◽  
Water Supply System ◽  
Loss Reduction ◽  
Program Selection

Hydraulic modeling is the modern way to apply world water engineering experience in every day practice. Hydraulic model is an effective tool in order to perform analysis of water supply system, optimization of its operation, assessment of system efficiency potential, evaluation of water network development, fire flow capabilities, energy saving opportunities and water loss reduction and ect. Hydraulic model shall include all possible engineering elements and devices allocated in a real water supply system regardless to hydraulic modeling program selection. In order to create high quality hydraulic model it is necessary to carry out measurement in water supply system and perform model calibration. The article presents principles and examples of formation of district metered areas and examples of model calibration. The article also presents case study of Šiauliai water supply system model application for water loss evaluation and localization. Determined that hydraulic model of water supply system helps to significantly reduce search areas of physical water loss formation and improves efficiency of further detection of water loss formation points by saving time and resources. Hidraulinis modeliavimas yra šiuolaikiškas ir modernus būdas, taikomas pasaulinėje vandentvarkos inžinerijos praktikoje. Hidraulinis modelis yra puikus darbo įrankis atliekant vandens tiekimo sistemos analizę, optimizuojant jos darbą, siekiant įvertinti sistemos darbo efektyvumo didinimo galimybes, vandentiekio tinklo plėtrą, gaisrų gesinimo galimybes, elektros energijos taupymo galimybes, vandens nuostolių paiešką ir kt. Nepriklausomai nuo hidraulinio modeliavimo programos pasirinkimo, hidraulinis modelis turi būti sudarytas iš daugelio inžinerinių elementų ir įrenginių, esančių realioje vandens tiekimo sistemoje. Kokybiškam hidrauliniam modeliui sukurti būtina atlikti slėgio ir debito matavimus bei modelio kalibravimą. Straipsnyje pateikiami debito ir slėgio matavimo vietų parinkimo principai bei modelio kalibravimo pavyzdžiai. Aprašyti Šiaulių miesto vandens tiekimo sistemos hidraulinio modelio taikymo pavyzdžiai vandens nuostolių lygiui nustatyti ir jų susidarymo vietoms lokalizuoti. Nustatyta, kad hidraulinis vandens tiekimo sistemos modelis padeda itin sumažinti fizinių vandens nuostolių paieškos plotą, o tolimesnis nuostolių vietos nustatymo įrangos taikymas gali būti žymiai efektyvesnis, taupant darbo laiką ir išteklius.

scholarly journals Research solutions technical - water technology to reduce the water loss for water supply system of Hochiminh city

2013 ◽  
Vol 16 (1) ◽  
pp. 49-57
Author(s):  
Tuan Anh Vo
Keyword(s):  
Water Supply ◽  
Water Loss ◽  
Salt Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Supply System ◽  
Water Supply System ◽  
The Sustainable Development ◽  
Pipe System ◽  
Pipe Line

The HCMC water supply system have built from the French Colonial period, and developed without planning and systematic study during the war time. In the beginning, this system used for the small town Saigon- Gia Dinh. Today, the capacity of water supply system is 1,85 million m3/day and will increase up to 2,5 million in next few year and up to 4-5 million m3/day according with the HCMC water supply system planning approved by Government. The climate change issues, salt water lever increase, polution... affect directly into the raw water resource of the existing and future water treatment plant. Beside that, the big size water supply transmission pipe line and the distribution water supply system of 06 hydrolique zone in HCMC damaged according with time : bad quality and No- update information of pipe system… It bring the real water loss level in HCMC so high up to 40% - 50% .The acceptable technologies & techniques solution to find the leak, optimal management for the water supply system to reduce the water loss is extremely essential, to support the clean water resources for the sustainable development of the HCM City.

scholarly journals THE ANALYSIS OF THE EFFECTS OF IWA METHODOLOGY APPLICATION ON WATER SUPPLY SYSTEM IN BOSNIA AND HERZEGOVINA

2012 ◽  
Vol 1 (8) ◽  
Author(s):  
Dalibor Vlaški ◽  
Goran Orašanin
Keyword(s):  
Water Supply ◽  
Bosnia And Herzegovina ◽  
Water Loss ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Water Utility ◽  
Utility Companies ◽  
Non Revenue Water ◽  
Different Characteristics

The key problem of water utility companies in Bosnia and Herzegovina in the fight to reduce the level of non revenue water (NRW) is the lack of a unique methodology with clearly defined steps. The aim of this paper is to show the possibility of accepting the concept for the control of water loss in water supply systems, which provides the International Water Association (IWA), and based on the analysis of the effects of the application of water utility companies adopt the recommended practices as an essential step for the analysis of its water supply system, with the aim of providing quality services, creating their own concept of self-sustaining and achieving customer satisfaction. Regarding the fact, a research was conducted with the aim of determining the level of non revenue water in utilities in Bosnia and Herzegovina. One part of the survey involved assessment for the 20 water utility companies with different characteristics, while the second one is related to the measured data from 7 water utility companies. The analysis of the effects of IWA methodology application for reducing water loss was carried out by experimental measurements on a separate part of the water supply system defined as a district metered area (DMA), in Bosnia and Herzegovina.

scholarly journals A real options approach to the design and architecture of water supply systems using innovative water technologies under uncertainty

2011 ◽  
Vol 14 (1) ◽  
pp. 13-29 ◽  
Author(s):  
Stephen X. Zhang ◽  
Vladan Babovic
Keyword(s):  
Decision Support ◽  
Water Resources ◽  
Water Supply ◽  
Real Options ◽  
Effective Means ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Real Options Approach ◽  
Supply Systems

Water supply has become a priority for developed and developing nations of the world. Conventional water resources alone cannot meet the growing demand for water in urban cities. Management of the problem is amplified by uncertainty associated with different development strategies. Singapore has limited conventional water resources and progressively architects its water supply system through acquiring and sustaining multiple (alternative) water resources through innovative technologies. The full rationale and merits of such a policy cannot be properly understood based on traditional project valuation methods alone. This paper provides decision support using a real options approach by evaluating innovative water technologies from multiple perspectives under uncertainty. This paper demonstrates that incorporating innovative water technologies into water supply systems can concurrently improve water supply from the financial, political and socioeconomic perspectives. The development of innovative water technologies provides flexibility to the water supply system, and is a fundamental and effective means of risk management. The evaluation of innovative water technologies is based on an integrated real options approach, which provides decision support for architecting water supply systems under uncertainty. The approach gives specific tangible values for the water technologies and complements the general prescriptive Integrated Water Resources Management (IWRM) framework.

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