scholarly journals Hydraulic Analysis and Modelling of Water Distribution Network Using WATERCAD and GIS: AL-Karada Area

2021 ◽  
Vol 318 ◽  
pp. 04004
Author(s):  
Noor R. Kadhim ◽  
Khalid A. Abdulrazzaq ◽  
Athraa H. Mohammed

The hydraulic study of drinking water is one of the things that must be done in order to obtain a realistic perception of the network’s functioning and the problems it suffers from, As well as to reach the scientific method to expand it if required, knowing that the population density is constantly increasing, as is the urban expansion, The aim of this study is evaluated and analyzed al-karada water distribution network to determine the areas of pure water scarcity and its causes, and the study relied on the data of the Baghdad water supply administration for the year 2020 and its divisions, where a hydraulic model of the network was created for the purpose of analysis, it included a review of the pressures and speeds during the average daily demand per person of 350 liters / day and during the maximum operational design capacities of the compacts Units, the results showed that the pressures within the acceptable limits and the flow velocity are not excessive in some pipe due to the low average daily demand.

2020 ◽  
Vol 12 (8) ◽  
pp. 3492
Author(s):  
Jeongwook Choi ◽  
Doosun Kang

To restore water pipes damaged by earthquakes, it is common to block the water flow by closing the associated shut-off valves. In this process, water supply suspension in the area connected to the isolated pipes is inevitable, which decreases the serviceability of the water distribution network (WDN). In this study, we identified the impact of valve layout (i.e., number and location) on system serviceability during a seismic damage restoration process. By conducting a pressure-driven-analysis (PDA) using EPANET 3.0, a more realistic hydraulic analysis could be carried out under the seismically damaged condition. Furthermore, by considering the valve-controlled segment in the hydraulic simulation, a more realistic water suspension area was determined, and efficient seismic damage restoration strategies were identified. The developed model was implemented on a WDN to demonstrate the effect of valve layout on the post-earthquake restoration process. Finally, effective restoration strategies were suggested for the application network.


2020 ◽  
Vol 9 (1) ◽  
pp. 11-22
Author(s):  
ALYES HAKASPENO HAKASPENO ◽  
RACHMAWATI S.DJ

AbstrakKelurahan Batununggal dan Mengger merupakan daerah cakupan pelayanan PDAM Tirtawening, dengan jumlah penduduk pada tahun 2016 sebanyak 29.190 jiwa. Walaupun tingkat pelayanan jaringan distribusi air minum daerah tersebut sebesar 24%, tetapi pipa eksisting merupakan pipa asbes yang tua. Oleh karena itu perlu dilakukan perencanaan baru agar daerah tersebut dapat terlayani oleh jaringan PDAM dengan memanfaatkan sumber air dari IPA Cikalong. Periode perencanaan adalah 20 tahun, sampai dengan tahun 2039. Proyeksi total kebutuhan air rata-rata untuk tahun 2039 adalah sebesar 80,13 l/dtk. Perencanaan jaringan distribusi dilakukan dengan membuat 3 alternatif jaringan. Dari ketiga alternatif ini dipilih salah satu alternatif terbaik secara hidrolis dengan menggunakan metode Weight Ranking Technique (WRT). Analisis hidrolis dilakukan dengan menggunakan aplikasi Epanet 2.0, yang mengacu kepada kriteria sesuai dengan Permen PU No.18 Tahun 2007. Alternatif terpilih untuk wilayah perencanaan adalah alternatif ke-3, yaitu yang menggunakan pola gabungan (cabang dan loop). Dari hasil analisis hidrolis diperoleh sisa tekan, kecepatan aliran, dan headloss sebesar berturut-turut 15,89 m – 41,60 m,  0,33 m/dtk – 2,08 m/dtk dan  9,88 m/km. Pipa yang digunakan adalah jenis High Density Polyethylene (HDPE) SDR 17 PN 10. Kata Kunci: Air Minum, Analisis Hidrolis, Jaringan Distribusi.AbstractBatununggal and Mengger Sub-Districts are areas that meet the services of the Tirtawening PDAM, with a total population in 2016 of 29,190 people. Although the service level of the drinking water distribution network is 24%, the existing pipes are old asbestos pipes. Therefore, new planning needs to be done so that it can be served by PDAMs using sources from the Cikalong WTP. The planning period is 20 years, until 2039. The projected total average air demand for 2039 is 80.13 l / sec. Distribution network planning is done by making 3 alternative networks. From one of these alternatives Choose one of the best alternatives using the Weight Ranking Technique (WRT) method. Hydraulic analysis is carried out using the Epanet 2.0 application, which refers to criteria in accordance with Permen PU No.18 of 2007. The alternative chosen for regional planning is the 3rd alternative, which uses a pattern combination (branch and loop). From the results of the hydraulic analysis the remaining compressive pressures, flow velocity, and headloss were agreed at 15.89 m - 41.60 m, 0.33 m / sec - 2.08 m / sec and 9.88 m / km. The pipe used is the type of High Density Polyethylene (HDPE) SDR 17 PN 10. Keywords: Drinking Water, Hydraulic Analysis, Distribution Networks.


Author(s):  
Daniele B. Laucelli ◽  
Luigi Berardi ◽  
Antonietta Simone ◽  
Francesco G. Ciliberti ◽  
Gabriella Balacco ◽  
...  

2017 ◽  
Vol 16 (5) ◽  
pp. 1071-1079 ◽  
Author(s):  
Andrei-Mugur Georgescu ◽  
Sanda-Carmen Georgescu ◽  
Remus Alexandru Madularea ◽  
Diana Maria Bucur ◽  
Georgiana Dunca

2005 ◽  
Vol 5 (2) ◽  
pp. 31-38
Author(s):  
A. Asakura ◽  
A. Koizumi ◽  
O. Odanagi ◽  
H. Watanabe ◽  
T. Inakazu

In Japan most of the water distribution networks were constructed during the 1960s to 1970s. Since these pipelines were used for a long period, pipeline rehabilitation is necessary to maintain water supply. Although investment for pipeline rehabilitation has to be planned in terms of cost-effectiveness, no standard method has been established because pipelines were replaced on emergency and ad hoc basis in the past. In this paper, a method to determine the maintenance of the water supply on an optimal basis with a fixed budget for a water distribution network is proposed. Firstly, a method to quantify the benefits of pipeline rehabilitation is examined. Secondly, two models using Integer Programming and Monte Carlo simulation to maximize the benefits of pipeline rehabilitation with limited budget were considered, and they are applied to a model case and a case study. Based on these studies, it is concluded that the Monte Carlo simulation model to calculate the appropriate investment for the pipeline rehabilitation planning is both convenient and practical.


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