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.

scholarly journals The simple calibration procedure on the example of small town water supply system

2018 ◽  
Vol 44 ◽  
pp. 00167
Author(s):  
Jarosław Sowiński ◽  
Adam Hofman ◽  
Marek Dziubiński
Keyword(s):  
Water Supply ◽  
Aging Process ◽  
Calibration Procedure ◽  
Resistance Coefficient ◽  
Supply System ◽  
Supply Network ◽  
Practical Application ◽  
Urban Network ◽  
Water Supply Network ◽  
Material Calibration

The practical application of the model of water supply network realized in the program Epanet 2 requires the calibration of the model. The proposed simple calibration procedure, allows for taking into account the changes in resistance caused by the aging process, to be substituted by resistance coefficient K. In order to determine the substitute resistance coefficient K, the fire hydrant flow tests could be used, which allows to determine the aging for a given material. Calibration of the water supply network model is shown on the example of a small urban network in central Poland..

scholarly journals Wise use of water in smart cities - possibilities and limitations

2018 ◽  
Vol 30 ◽  
pp. 01014
Author(s):  
Joanna Bąk
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Smart Cities ◽  
Classification Systems ◽  
Supply Network ◽  
Water Efficiency ◽  
Water Supply Network ◽  
Quality Water ◽  
Reduced Water

The need to save water is due, inter alia, to the paradigm of sustainable development. There are many ways to minimize the consumption of high quality water supplied by the water supply network. These include the simplest way and those complex, requiring additional installation. The lack of water is a big problem, but not only water deficit are dangerous. There is a possibility of secondary water pollution in the water supply network due to changes in network parameters. Changes in these parameters may occur due to reduced demand for water by residents and, as a result, reduced water flow - at the same pipe diameter. The article includes a review with comparative analysis of various classification systems for the tap fittings and other sanitary equipment, such as the Water Efficiency Label (WELL) in Europe or the Water Efficiency Labelling and Standards (WELS) in Australia. Several types of perlators and flow regulators were compared in the research section. This equipment was tested in the household. The possibilities of minimizing water consumption by using them was collated. In addition, the work also analyses the evolution of water consumption in Poland in recent years and their possible relationship with the threats quality of drinking water supplied to consumers.

scholarly journals Influence of Space-Time Heterogeneity of Water Consumption Conditions on the Parameters of a Water Supply System

2017 ◽  
Vol 24 (1) ◽  
pp. 159-167
Author(s):  
Ewa Ogiołda ◽  
Ireneusz Nowogoński ◽  
Maciej Babiuch
Keyword(s):  
Water Supply ◽  
Environmental Protection Agency ◽  
Supply System ◽  
Water Supply System ◽  
Supply Network ◽  
Protection Agency ◽  
Water Supply Network ◽  
Industrial Plants ◽  
Network Operation ◽  
Materials Used

Abstract The work presents the results of the analysis of an existing water supply system. It contains a description of the analysed area in which the analysed system was located, as well as its parameters regarding water intakes and transport of water with pumps, the length and diameter of pipes, and a complication of the materials used to construct the network. Water demand accounting for the nature of the consumers using the water supply network was subject to analysis. The influence of changes in the distribution of water within a day for the basic categories of recipients was accounted for. The EPANET 2.0 program for the simulating water supply network operation, made available by the U.S. Environmental Protection Agency through a public-domain licence, was used to construct the model of the system. The obtained results of the simulation allowed for indicating the main problems with the use of the analysed system. Subject to analysis was the pressure pattern in characteristic nodes of the network from which mining companies, industrial plants and residential households were supplied. Usefulness of the developed simulation model in preparing the assessment of future modernization works was confirmed, allowing for the effects of their implementation to be assessed.

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.

scholarly journals An interdisciplinary political ecology of drinking water quality. Exploring socio-ecological inequalities in Lilongwe’s water supply network

Geoforum ◽  
2017 ◽  
Vol 84 ◽  
pp. 138-146 ◽  
Author(s):  
Maria Rusca ◽  
Akosua Sarpong Boakye-Ansah ◽  
Alex Loftus ◽  
Giuliana Ferrero ◽  
Pieter van der Zaag
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Political Ecology ◽  
Drinking Water Quality ◽  
Supply Network ◽  
Water Supply Network
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