Research on Hydraulic Model Establishment of Water Supply Network

2014 ◽  
Vol 1073-1076 ◽  
pp. 1027-1030
Author(s):  
Xin Zhang ◽  
Kun Zhang ◽  
Rui Ying Wu
Keyword(s):  
Water Supply ◽  
Real Time ◽  
Hydraulic Model ◽  
Operating Conditions ◽  
Security Evaluation ◽  
Supply Network ◽  
Pipe Network ◽  
Monitoring Point ◽  
Water Supply Network ◽  
Network Status

Under the existing technical and financial conditions, we can not do real-time monitoring of the water supply network in each point. The hydraulic model establishment has created favorable conditions for simulating pipe network hydraulic model.According to the information from pressure monitoring point of water supply pipe network , we can use batch adjustment principle to analyze the calculated variables’ value. With limited resources to simulate real-time network status, build pipe water conservancy network model and simulate network real-time operating conditions. Hydraulic model provides the basis for the water supply network security evaluation, scheduling scheme, pumps and piping renewal.

Analysis of Security for Water Supply Network Based on the AHP Fuzzy Theory

2014 ◽  
Vol 1073-1076 ◽  
pp. 1023-1026
Author(s):  
Jiao Wang ◽  
Xin Zhang
Keyword(s):  
Water Supply ◽  
Evaluation System ◽  
Evaluation Method ◽  
Statistical Data ◽  
Fuzzy Theory ◽  
Security Evaluation ◽  
Supply Network ◽  
Urban Water Supply ◽  
Water Supply Network ◽  
Mathematical Evaluation

Fuzzy mathematical evaluation method, is mainly rely on experience to determine the membership function for data processing. The water supply network security evaluation system is established based on network historical statistical data. A reasonable evaluation of urban water supply network in shanxi has been carried in the application of AHP to determine the factor weight of fuzzy mathematics.

scholarly journals Influence of irregularity of water consumption on water age in a water supply network

2018 ◽  
Vol 44 ◽  
pp. 00132
Author(s):  
Ewa Ogiołda ◽  
Ireneusz Nowogoński
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Water Consumption ◽  
Hydraulic Model ◽  
Supply System ◽  
Supply Network ◽  
Water Age ◽  
Water Supply Network ◽  
Time Frames ◽  
System Water

The article presents an analysis of an existing water supply system. Water consumption in various time frames, i.e. a year, week and 24 hours, is shown. A hydraulic model was developed and, using the EPANET programme, calculations simulating its parameters carried out, accounting particularly for water age, which reflective of the water quality supplied to the recipients. The obtained results are the basis for assessing the operation of the system.

CRIS- Central Server-based Real-Time Interconnections of Water Supply Network

2021 ◽  
Author(s):  
P. Sree Harshitha ◽  
Raja VaraPrasad ◽  
Hrishikesh Venkataraman
Keyword(s):  
Water Supply ◽  
Real Time ◽  
Supply Network ◽  
Water Supply Network

Research on Inverse Transient Leakage Location of Water Supply Network Based on Genetic Algorithm

2012 ◽  
Vol 212-213 ◽  
pp. 679-683
Author(s):  
Jian Gang Fei ◽  
Shen Dong ◽  
Mou Lv ◽  
Ze Bin Sheng
Keyword(s):  
Genetic Algorithm ◽  
Correlation Analysis ◽  
Water Supply ◽  
Real Time ◽  
Pressure Variation ◽  
Supply Network ◽  
Hydraulic Analysis ◽  
Analysis Model ◽  
Water Supply Network ◽  
Leakage Location

In order to realize real-time leakage (online) diagnosis, through correlation analysis of the network leakage and pressure variation, using the established microscopic model as the basic hydraulic analysis model, using the position of the network leakage point and the water of leakage point as the variables, using minimizing difference of the network pressure points monitoring value and simulation value as the target when leakage occurs, establish inverse transient leakage location of water supply network model based on genetic algorithm. Finally through the two modes of leakage verification, the result shows that this model can effectively achieve the network leakage location and quantitative.

Real-time localization of pollution source for urban water supply network in emergencies

2018 ◽  
Vol 22 (S3) ◽  
pp. 5941-5954 ◽  
Author(s):  
Xuesong Yan ◽  
Tian Li ◽  
Chengyu Hu ◽  
Qinghua Wu
Keyword(s):  
Water Supply ◽  
Real Time ◽  
Pollution Source ◽  
Urban Water ◽  
Supply Network ◽  
Urban Water Supply ◽  
Water Supply Network

scholarly journals Optimal layout of pressure monitoring points in water supply network based on Optics

2019 ◽  
Vol 79 ◽  
pp. 01015 ◽  
Author(s):  
ChenLei Xie ◽  
QianSheng Fang ◽  
HongYan Zhang ◽  
JiXin Zhang
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Urban Water ◽  
Supply Network ◽  
Pressure Monitoring ◽  
Monitoring Point ◽  
Water Supply Network ◽  
Spatial Attributes

It is necessary to monitor the pressure in the networks in real time, when we face the problem of pipe burst and leakage in urban water supply network. Therefore, it is particularly important to arrange pressure monitoring points in appropriate places in the pipeline networks. The pressure monitoring point layout is often based on similar degree of the node pressure data in the current stage. A method of optimal pressure monitoring point location in the urban water distribution networks was proposed in this paper. Since the above method did not consider spatial properties of network node. The original feature matrix data is constructed by acquiring the spatial attributes of the pressure monitoring nodes and calculating the non-spatial attributes of the nodes. The original feature matrix data will be normalized. Then the Optics clustering algorithm is used to cluster the normalized node feature matrix data to determine the location and number of pressure monitoring points in monitoring area of urban water distribution networks. Experimental results show that the method effectively ensures that the pressure monitoring points can grasp the pressure information of the whole water supply network more comprehensively and rationally, improves the economy of the pressure monitoring points layout, and provides good guidance for the actual layout of pressure monitoring points in municipal water distribution networks.

scholarly journals An Accurate Leakage Localization Method for Water Supply Network Based on Deep Learning Network

2022 ◽  
Author(s):  
Juan Li ◽  
Wenjun Zheng ◽  
Changgang Lu
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Supply Network ◽  
Pipe Network ◽  
Positioning Accuracy ◽  
Water Supply Network ◽  
Specific Location ◽  
Pipe Section ◽  
Leak Location ◽  
Deep Learning Network

Abstract In the water supply network, leakage of pipes will cause water loss and increase the risk of environmental pollution. For water supply systems, identifying the leak point can improve the efficiency of pipeline leak repair. Most existing leak location methods can only locate the leak point approximately to the node or pipe section of the pipe network, but cannot locate the specific location of the pipe section. This paper presents a framework for accurate location of water supply network leakage based on ResNet. The framework is to pinpoint leaks to specific locations along the pipeline. The leakage of two kinds of pipe networks is simulated. For a pipe network containing 40 pipes, the positioning accuracy of the pipe section is 0.94, and the MSE of the specific location of the leakage point is 0.000435. For the pipe network containing 117 pipes, the positioning accuracy of the pipe section is 0.91, and the MSE of the specific location of the leakage point is 0.0009177, and the leak location ability under different sensor arrangements is analyzed. Experiments verify the robustness and applicability of the framework.

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