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.

Generalized Network Algorithm for Water-Supply-System Optimization

1995 ◽  
Vol 121 (5) ◽  
pp. 392-398 ◽  
Author(s):  
Yung-Hsin Sun ◽  
William W-G. Yeh ◽  
Nien-Sheng Hsu ◽  
Peter W. F. Louie
Keyword(s):  
Water Supply ◽  
System Optimization ◽  
Supply System ◽  
Water Supply System ◽  
Network Algorithm

scholarly journals Assessment of leakage management in small water supplies using performance indicators

2021 ◽  
Author(s):  
Iwona Klosok-Bazan ◽  
Joanna Boguniewicz-Zablocka ◽  
Aneta Suda ◽  
Ewelina Łukasiewicz ◽  
Dorota Anders
Keyword(s):  
Water Supply ◽  
Water Loss ◽  
Performance Indicators ◽  
Supply System ◽  
Water Supply System ◽  
Lessons Learned ◽  
Operating Conditions ◽  
Water Losses ◽  
Leakage Reduction ◽  
Small Water

AbstractThe revision of the Drinking Water Directive (DWD), which the process of consultation by the European Parliament is coming to the end, includes a commitment for all Member States to assess the level of water leakage. The overarching aim of this action is to reduce water loss through leaks. In regard to this, use of performance indicators as suitable to enable assessment of water utility performance with regard to leakage reduction, including impacts on environment and cost-efficiency, is recommended. The paper provides results from water losses evaluation with the set of performance indicators (PI), considering dependence on the availability of resources and specific operating conditions. An analysis of different PI that are necessary to evaluate in most of leakage reduction methods was conducted considering step-by-step approach. Furthermore, the most relevant data for leakage analysis and management on a network level was determined. Presented PI can be used to improve leakage management of small water supply system. Similarly as in the Deming cycle, the described tool provides for planning activities, executing activities in accordance with the plan, checking the degree of execution of objectives included in the plan, and on the basis of conducted analyses and lessons learned, the so-called improvement. The results of the analysis lead to the conclusion that through a comprehensive, systematically improved strategy, the high effectiveness of the system could be reach. The reliable monitoring does not have to be based on advanced technological methods, which are often unavailable for small water supply system, due to high investment and operating costs. The results indicate that integrated IT systems, as SCADA, might not be directly beneficial to water loss management in small networks with moderate leakage levels.

scholarly journals Water Loss Analysis as an Element of Operation Management of Water Supply System

2019 ◽  
Vol 49 (2) ◽  
pp. 55-77
Author(s):  
Jakub Żywiec ◽  
Barbara Tchórzewska-Cieślak
Keyword(s):  
Water Supply ◽  
Failure Rate ◽  
Water Loss ◽  
Technical Condition ◽  
Supply System ◽  
Water Supply System ◽  
International Standards ◽  
Water Losses ◽  
Safety Level ◽  
Water Supply Company

Abstract The aim of the study was an cause and effect analysis of water losses in the collective water supply system of the city located in south-eastern Poland. The exploitation data provided by the water supply company from 2012 - 2016 was used for the analysis. The study uses the recommendations of the IWA (International Water Association) for the water balance making and determination of water loss indicators. The values of water loss indicators were compared to international standards and the technical condition of the network was determined. In addition, failure rate analysis of the water supply network was performed based on the failure rate index λ. Based on the performed analysis, it was found that the water supply company should consider renovation or replacement of the main network pipelines to increase the safety level of water supply, reduce the amount of water losses and the company exploitation costs.

scholarly journals Investigation of Water Loss from Pipes Located in Various Relief Features of Iaşi County

2019 ◽  
Vol 13 (1) ◽  
pp. 171-179
Author(s):  
Ștefania Chirica ◽  
Mihail Luca ◽  
Iustina Lateș
Keyword(s):  
Water Supply ◽  
Water Loss ◽  
Geographic Area ◽  
Supply System ◽  
Water Supply System ◽  
Detection Methods ◽  
Water Supply Systems ◽  
Water Losses ◽  
Functional Features ◽  
The Impact

Abstract Water losses are present in all water supply system pipes. Their parameters and value vary depending on the constructional and functional features of the pipes (diameter, material, pressure, embedding environment, location, position etc.). The phenomenon is present in all water supply systems networks in Romania as well as globally. The water supply pipes within the regional water supply system are located in areas with diversified relief, from plateaus and hills to plains. The studies and researches were carried out in the geographical placement area of the Timişeşti-Iaşi pipeline. The geographic area studied is enclosed in Siret and Prut hydrographic basins. The paper aims to establish a correlation between the detection methods of water leaks from pipes and the areal relief features in Iaşi County. At the same time, it is highlighted the impact of the variation of the geographical relief characteristics on the water loss management on different type of pipes.

scholarly journals Evaluasi Hidrolis Jaringan Distribusi Air Minum Sistem Beber PDAM Tirta Jati Kabupaten Cirebon

2021 ◽  
Vol 22 (1) ◽  
pp. 058-067
Author(s):  
Maharani Anastasya Sukmawardani ◽  
Mohamad Rangga Sururi ◽  
Arief Dhany Sutadian
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Water Loss ◽  
Environmental Protection Agency ◽  
Supply System ◽  
Water Supply System ◽  
Drinking Water Supply ◽  
Water Usage ◽  
Severe Problem ◽  
Drinking Water Supply System

ABSTRACT Water loss is a severe problem in the drinking water supply system as it disrupts the continuity of the drinking water supply. The Water loss is a severe problem in the drinking water supply system as it disrupts the continuity of the drinking water supply. The largest proportion of water losses is usually found in distribution systems. This study was located in the Beber water supply system, PDAM Tirta Jati Cirebon Regency. The study aimed to evaluate the hydraulic condition and give improvement recommendations for the Beber piping network system distribution. This research performed the International Water Association (IWA) water balance concept through water production and water usage data. Furthermore, the hydraulic condition is evaluated using water usage, ground-level elevation, water usage pattern, and the existing distribution network's technical data. The evaluation was conducted by simulation using EPANET 2.0 from the Environmental Protection Agency (EPA), which then compared to the design criteria listed in Permen PUPR No. 27 2016. The results show a 44.38% percentage of water loss due to a pipe leak. Simulation results showed a segment of pipe having velocity less than 0.3 m/s (43.31%), and all nodes had pressure below 12.4 MPa. The simulation results also showed some nodes had pressure greater than 100 mKa and exceeded the HDPE SDR 17 pipe's maximum capacity. This condition causes many pipe leaks that occur in the system, so it is recommended to install a Pressure Reducing Valve (PRV) and change of pipe diameter. The study also suggests establishing a District Meter Area (DMA) to detect pipe leak points. Keywords: water loss, distribution network, pipe leakage, DMA, EPANET 2.0.   ABSTRAK Kehilangan air merupakan masalah serius dalam Sistem Penyediaan Air Minum (SPAM) karena mengganggu kontinuitas penyediaan air minum. Kehilangan air terbesar biasanya ditemui pada sistem distribusi termasuk pada SPAM Beber milik PDAM Tirta Jati Kabupaten Cirebon. Tujuan studi ini adalah untuk melakukan evaluasi hidrolis dan memberikan rekomendasi perbaikan pada sistem jaringan perpipaan distribusi SPAM Beber. Evaluasi dilakukan dengan konsep neraca air sesuai standar International Water Association (IWA) dengan menggunakan data debit produksi dan pemakaian air. Selanjutnya dilakukan evaluasi hidrolis jaringan menggunakan data pemakaian air, elevasi muka tanah, pola pemakaian air, serta data teknis jaringan distribusi eksisting. Evaluasi dilakukan dengan membuat simulasi hidrolis menggunakan software EPANET 2.0 dari Environmental Protection Agency (EPA) yang kemudian dibandingkan dengan kriteria desain yang tercantum dalam Permen PUPR No. 27 Tahun 2016. Hasil evaluasi menunjukkan persentase kehilangan air mencapai 44,38% akibat kebocoran pipa. Hasil simulasi hidrolis menunjukkan, terdapat segmen pipa yang memiliki kecepatan aliran kurang dari 0,3 m/detik (43,31%) dan seluruh nodes memiliki sisa tekan dibawah 12,4 MPa. Hasil simulasi juga menunjukkan terdapat nodes yang memiliki sisa tekan sebesar 100 mKa dan melebihi kapasitas maksimum dari pipa HDPE SDR 17. Kondisi ini menjadi salah satu penyebab tingginya angka kebocoran pipa yang terjadi pada sistem, sehingga perlu dilakukan perbaikan dengan pemasangan PRV dan pergantian diameter pipa. Penataan District Meter Area (DMA) juga dapat dilakukan sebagai solusi untuk mempermudah pendeteksian titik kebocoran pipa. Kata Kunci : kehilangan air, jaringan distribusi, kebocoran pipa, DMA, EPANET 2.0.

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