A Hydraulic Model as a Useful Tool in the Operation of a Water-Pipe Network (original) (raw)

Use of the Hydraulic Model for the Operational Analysis of the Water Supply Network: A Case Study

Water, 2021

This paper presents an analysis of the operation of the water supply system. The analysed network provides water to six small towns. The water supply network covers rural areas of approximately 50 square kilometres with a total of 6130 inhabitants (2020). The area is characterised by relatively large differences in elevation. The water-pipe network supplies water mostly to family housing, public utility buildings, recreational buildings, service and craft entities, religious buildings, and commercial facilities and farms, including breeding farms. The network is supplied from one deep water well and a centrally located water supply tank. A hydraulic model was used for the analysis. The model was developed using the Epanet program, based on numerical and operational data. After validation, selected measurement points were used to calibrate the model. Furthermore, a series of simulations were performed to illustrate the network operation for variable water supply and demand conditions...

Hydraulic Analysis of the Kabacan Water District Pipe Network

The Mattingley Publishing Co., Inc., 2020

This study intends to analyze the hydraulic characteristics of the Kabacan Water District (KWD) pipe network in Bgy. Bannawag, Kabacan, Cotabato, Philippines, to assess the vulnerability of the water system in terms of the hydraulic integrity. Establishment of the network topology entails actual site survey to measure the distances between junctions, the ground elevations, and the pipe sizes. The sketch of the network topology is used as backdrop overlain on the EPANET to create the network map [11]. Simulation results indicate that there are excessive head losses beyond the allowable limit which is not sufficient to maintain the minimum operating pressure of 7.0 mwc (10 psi) in most of the nodes. This event signifies depletion of positive line pressures or a cutback in hydraulic capacity that cause unsatisfactory water supply in the network during peak hours. The situation could be worsened by failure of a pump or valve that can cause surges in pressure. The KWD network is vulnerable to pressure surges as evidenced by fluctuations caused by rapid pump start up or shut down. The vulnerability of the KWD network can be described using the EPANET simulation results, thus, mitigating measures can be done to address such and improve the capacity of the water system.

Hydraulic Analysis of the Water Supply System in Town Nevesinje

2018

The water supply network is an essential part of water supply system. It has a task to provide distribution of necessary quantities of water under appropriate pressure from the source to each consumer while keeping the process cost sensitive. In this paper, a hydraulic design of water supply network of the town of Nevesinje, Bosnia and Herzegovina, have been conducted applying an original and newly developed numerical model for simulation and calculation of pipe networks in steady operating conditions. This model is created in Visual Fortran and is used for simultaneous solving of systems of equations which describe a steady flow in pipe networks, regardless of the number of pipes and nodes. The system of equations is solved by the Newton-Raphson Method. The results obtained by the numerical model have been compared with those obtained by means of the commercial software AFT Fathom 6.0. Based on good matching of the compared results it can be concluded that the developed numerical m...

Developed a Hydraulic Model as a Useful Tool in the Improvement of the Water Pipe Network in Al-Hilla City

Journal of Engineering and Applied Sciences, 2019

The main objective of this study is designing of Water Distribution Network (WDN) based on loops hydraulically. The existing water distribution network could not able to service the total area after the subsequent years due to population inflation and the increasing of water demand. Thus, new design of water distribution network suggested to insurance the population consumption and water demand of the present area after 25 years from base year of 2018. The data for the water pipe network such as the maps, diameters, material, utilities, land ordinates and the area supply method were obtained from Babylon Water Directorate.

Hydraulic Modelling of the Water Supply System of Năsăud City, Bistriţa Năsăud County

IOP Conference Series: Earth and Environmental Science, 2021

The paper presents a study of hydraulic modelling of the drinking water and sewage distribution network in Nasaud City, Bistrija Nasaud County from Romania, which includes a calibrated simulation of the flow through networks, and allows the elaboration of a future strategy of developing the networks of water and sewage. The need to develop hydraulic models as accurately as possible results from the fact that, by creating and calibrating the hydraulic model of a system, a variety of system problems can be identified, solutions can be mitigated to them by addressing the problem of rehabilitation, expansion or design of new systems. The results can be tracked both at the scale of time, and in real time by simulating the functioning of the system at these time scales. We decided to approach the problems of sizing and verifying the network using software solutions packages, in this case the MIKE URBAN calculation program, which can import and export network data as ESRI ArcView shape fil...

Software Used for the Design and Computation of Hydraulic Water Supply Networks: Overview

Engineering and Protection of Environment, 2018

The aim of this paper is to present the potential of computer software for designing and computation of hydraulic water supply systems. The paper presents applications available in the Polish market, such as: Stanet, Woda, Wodociągowiec, Wavin-NET and Epanet. The paper presents the functionalities of each application: the method of construction of the water supply network, limitations to the size of the network, options of inputting such data as e.g. water distributions and the type of generated output data. It was shown which applications allow for hydraulic calculations of both radial and annular networks, and which can be used only for radial networks. Attention was also drawn to the option of automatic generation of longitudinal profiles of designed networks.

Simulation of Pipe Networks Using EPANET to Optimize Water Supply: A Case Study for Arjawinangun Area, Indonesia

Archives of Hydro-Engineering and Environmental Mechanics, 2023

In providing clean water services to a community, a clean water supply distribution network system is very important. This study is aimed at the determination of the distribution pipe network by simulating and optimizing the water supply system in the Arjawinangun area, Cirebon, West Java, Indonesia. The data collected was analyzed by using EPANET 2.0 software for modelling water distribution systems. The results show that the total domestic and non-domestic water demand is 391.41 l/s, with a leakage rate of 20%. The pipeline installation plan for the Arjawinangun area is planned to be installed for a length of 23,045 m, with pipe diameters ranging from 400 to 90 mm. The Arjawinangun Area Offtake Reservoir drainage system, which is at an elevation of +25 m above sea level, requires a distribution pump with a head (H) of 6.0 bar. Also, using the gravity distribution technique, a water tower can be built (∼ 55 m) as a water supply booster pump.

Real-time modelling of a major water supply system

Proceedings of the ICE - Water Management, 2007

Numerical modelling of water supply and distribution systems has become a standard and essential practice in any serious attempt to evaluate hydraulic, water quality and economic aspects of these complex systems. Well-suited models, including advanced technologies such as GIS and telemetry systems, accurate fire flow calculations, water quality analysis and leakage reduction have become indispensable tools for water network managers. Application of these advanced techniques in hydraulic and water quality modelling and optimum operation is considered to be a part of master planning for the south-west Moravian water supply system in the Czech Republic. The regional water supply system of south-west Moravia supplies water to two counties (Zdar and Trebic). Two regional control centres manage the whole water supply system. A hydraulic and water quality on-line computational module is installed on the central control system server. The mathematical model of the water supply system was calibrated and verified for both steady state and extended period simulations. Numerous hydraulic and water quality model scenarios were conducted for both existing and future operations of the system under normal and emergency conditions. Water quality analyses consisted of residual chlorine concentration simulation including detailed water age and source tracing simulations. The main objective in developing the on-line model was to decrease the operational cost of the system by optimising the operation of pumping stations by improving the rules used to control the inflow into the storage tanks, and by decreasing the time necessary to model required alternatives. The experience from developing the hydraulic and water quality models and optimum scheduling of pumps and valves for the master plan of south-west Moravia as well as the state of the art of the available solutions are discussed in this paper.