scholarly journals Water loss detection in water distribution networks by artificial immune systems-based on model calibration

2017 ◽  
Vol 23 (9) ◽  
pp. 1014-1018
Author(s):  
Miraç Eryiğit
Keyword(s):  
Water Loss ◽  
Model Calibration ◽  
Water Distribution ◽  
Artificial Immune Systems ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Artificial Immune ◽  
Immune Systems

Cost optimization of water distribution networks by using artificial immune systems

2014 ◽  
Vol 64 (1) ◽  
pp. 47-63 ◽  
Author(s):  
Miraç Eryiğit
Keyword(s):  
Water Distribution ◽  
Clonal Selection ◽  
Artificial Immune Systems ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Clonal Selection Algorithm ◽  
Artificial Immune ◽  
Immune Systems ◽  
Proposed Model ◽  
The Impact

This study aims at the development of an optimization model based on artificial immune systems (AIS) to minimize cost designs of water distribution networks (WDNs). Clonal selection algorithm (Clonalg), a class of AIS, was used as an optimization technique in the model, and its mutation operation was modified to increase the diversity (search capability). EPANET, a widely known WDN simulator, was used in conjunction with the proposed model. The model was applied to four WDNs of Two-loop, Hanoi, Go Yang, New York City, and the results obtained were compared with other heuristic and mathematical optimization models in the related literature, such as harmony search, genetic algorithm, immune algorithm, shuffled complex evolution, differential evolution, and non-linear programming-Lagrangian algorithm. Furthermore, the modified Clonalg was compared with the classic Clonalg in order to demonstrate the impact of the modification on the diversity. The proposed model appeared to be promising in terms of cost designs of WDNs.

scholarly journals Water Loss Reduction in Water Distribution Networks. Case Study

2019 ◽  
Vol 9 (1) ◽  
pp. 73-80
Author(s):  
Anca Hoțupan ◽  
Roxana Mare ◽  
Adriana Hădărean
Keyword(s):  
Water Flow ◽  
Water Loss ◽  
Water Distribution ◽  
Potable Water ◽  
Distribution Network ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Water Losses ◽  
Supply Pipe ◽  
Looped Network

Abstract Water losses on the potable water distribution networks represent an important issue; on the one hand, water loss does not bring money and on the other hand, they modify water flow and pressure distribution on the entire system and this can lead to a cut-off of the water supply. A stringent monitoring of the water distribution network reduces considerably the water losses. The appearance of a leakage inside the distribution network is inevitable in time. But very important is its location and repair time – that are recommended to be as short as possible. The present paper analyses the hydraulic parameters of the water flow inside a supply pipe of a looped network that provides potable water for an entire neighbourhood. The main goals are to optimize these parameters, to reduce water losses by rigorous monitoring and control of the service pressure on the supply pipe and to create a balance between pressure and water flow. The presented method is valid for any type of distribution network, but the obtained values refer strictly to the analysed potable water distribution looped network.

scholarly journals EVALUASI TEKANAN JARINGAN DISTRIBUSI ZONA AIR MINUM PRIMA (ZAMP) PDAM INTAN BANJAR MENGGUNAKAN EPANET 2.0

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Rony Riduan ◽  
Muhammad Firmansyah ◽  
Shelda Fadhilah
Keyword(s):  
Water Loss ◽  
Water Distribution ◽  
Potable Water ◽  
Loss Rate ◽  
Distribution Network ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Customer Complaints ◽  
Standard Rate ◽  
Simulation Results

PDAM Intan Banjar melakukan sebuah program untuk meningkatkan kualitas Air Minum yang disebut Zona Air Minum Prima (ZAMP). Dimana ZAMP adalah wilayah khusus yang jaringan distribusi terisolasi dan dirancang sebagai wilayah air siap minum. ZAMP merupakan wilayah yang diutamakan pelayanannya oleh PDAM Intan Banjar selama 24 jam. Tingkat kehilangan air ZAMP hingga April 2016 sebesar 31%, yang dimana  telah  melebihi standar tingkat kehilangan air minimum yaitu 20%. Beraasarkan data Hubungan Langganan, adanya pengaduan pelanggan masalah  pipa bocor dan masalah kurangnya tekanan pada jam puncak yang tercatat dari hasil data pressure recorder yang dipasang oleh pihak PDAM pada beberapa titik pantau ZAMP. Tujuan penelitian ini adalah mengidentifikasi sistem jaringan distribusi air minum, kemudian mengevaluasi dan memetakan pola sebaran tekanan pada jaringan distribusi ZAMP serta membandingan hasil simulasi dengan kondisi eksisting. Berdasarkan hasil pengolahan data, jam puncak ZAMP terjadi pukul 07.00 dan jam terendah terjadi pada  pukul  04.00. Berdasarkan hasil simulasi Epanet 2.0, terdapat 3 node yang memiliki tekanan <10 m. Hal ini dapat disebabkan karena adanya perbedaan elevasi, jarak yang semkin menjauhi sumber air, dan ketidaksesuaian dimensi pipa. Kata kunci: Epanet 2.0, sistem jaringan distribusi, tekanan, ZAMP. PDAM Intan Banjar has a program to improve the water quality, which is called as Zona Air Minum Prima (ZAMP), where ZAMP is a special isolated distribution network area designed as a potable water. ZAMP is an area served priority by PDAM Intan Banjar for 24 hours. ZAMP’s water loss rate in April 2016 was 31%, it exceeded the minimum standard rate of water loss, 20%. The existence of customer complaints about leaking pipes and lack of pressure at peak hours were recorded from pressure recorder data result that was set at some ZMAP critical points. The purpose of this study is to identify the system of water distribution networks, evaluate and map the distribution pattern of the pressure of water distribution networks, as well as to compare the simulation results with today’s condition. Besade on data processing result, ZAMP’s peak hour occurred at 07.00 and its lowest occurred at 04.00 o’clock. Based on Epanet 2.0’s simulation results, there existed 3 nodes that have pressure <10m. These can be due to the differences in elevation, increasing distance from the source water, and the mismatching in pipe dimensions. Keywords:, distribution network system, Epanet 2.0, pressure, ZAMP.

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