scholarly journals Optimization of water reservoir volume in an urban water supply system

2021 ◽  
Author(s):  
Lucija Plantak ◽  
Bojan Đurin ◽  
Tatjana Džeba ◽  
Sara Dadar
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Reservoir ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Urban Water Supply ◽  
Functional Relationships ◽  
Reservoir Volume ◽  
Water Pumping

In this paper, the water pumping regime, as well as the water consumption regime with regard to the required quantities and the example of water consumption, with an emphasis on changes in water volume, are examined. This aims to show the functioning of the regime of water consumption, water pumping, as well as finding functional relationships between the mentioned sizes and the volume of the water reservoir. The analysis focuses on questions such as how and in what way, changes in the onset and duration of pumping, as well as different water consumption regimes affect the size of the reservoir volume. The entire analysis in this paper was done to develop a scientifically innovative, but also applicable mathematical model, which is a contribution to the profession and a good basis for further scientific research to improve the operation of the urban water supply system.

scholarly journals Innovative approach for achieving of sustainable urban water supply system by using of solar photovoltaic energy

2017 ◽  
Vol 37 (1) ◽  
pp. 58 ◽  
Author(s):  
Jure Margeta ◽  
Bojan Đurin
Keyword(s):  
Water Supply ◽  
Urban Areas ◽  
Renewable Energy Sources ◽  
Water Reservoir ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Solar Photovoltaic ◽  
Urban Water Supply ◽  
Pump Station

Paper describes and analyses new and innovative concept for possible integration of solar photovoltaic (PV) energy in urban water supply system (UWSS). Proposed system consists of PV generator and invertor, pump station and water reservoir. System is sized in such a manner that every his part is sized separately and after this integrated into a whole. This integration is desirable for several reasons, where the most important is the achievement of the objectives of sustainable living in urban areas i.e. achieving of sustainable urban water supply system. The biggest technological challenge associated with the use of solar, wind and other intermittent renewable energy sources RES is the realization of economically and environmentally friendly electric energy storage (EES). The paper elaborates the use of water reservoires in UWSS as EES. The proposed solution is still more expensive than the traditional and is economically acceptable today in the cases of isolated urban water system and special situations. Wider application will depend on the future trends of energy prices, construction costs of PV generators and needs for CO2 reduction by urban water infrastructure.

MATHEMATICAL MODELLING OF URBAN WATER SUPPLY SYSTEM CRISIS

Engevista ◽  
2011 ◽  
Vol 13 (1) ◽  
Author(s):  
Marco Antonio Almeida de Souza ◽  
Welitom Ttatom Pereira da Silva
Keyword(s):  
Water Supply ◽  
Conceptual Model ◽  
Urban Environment ◽  
Influencing Factors ◽  
Water Consumption ◽  
Water Availability ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Urban Water Supply

Purpose – The chaotic growth of cities results in numerous problems related to public health and urban environment. One of these problems is the crisis in urban water supply systems. The objective of this paper is to develop a mathematical model for the water supply system crisis in urban environment (WSC) able to tackle with the ambiguity of the real available data.Design/methodology/approach – The applied methodology comprises the following steps: (1) identification of the influencing factors in WSC; (2) proposal of a conceptual model for WSC description; (3) gathering and simulation of the necessary and available data; (4) optimization of the conceptual model parameters; and (5) verification of the proposed model performance.Findings – The results indicated that there is a great amount of influencing factors in WSC (showed in the complete text); the conceptual model that was developed is composed by two others partial models ( ). The first partial model explained the water consumption ( ),and the second partial model explained the water availability ( ), in which functions are related to influencing factors in water consumption (i.e. temperature, relative humidity, rainfall, revenues collected, unemployment indicator), and functions are related to the influencing factors in water availability (i.e. total water-loss, intermittence in water supply system). The proposed conceptual model has showed good agreement to the simulated data.Originality/value – The paper is among the first works to describe a WSC model and to analyze the possibility of applying fuzzy logic to deal with the ambiguity of the real data. The water supply crisis in urban environments was adequately modelled.

scholarly journals State-of-the-art review on the transient flow modeling and utilization for urban water supply system (UWSS) management

2020 ◽  
Vol 69 (8) ◽  
pp. 858-893 ◽  
Author(s):  
Huan-Feng Duan ◽  
Bin Pan ◽  
Manli Wang ◽  
Lu Chen ◽  
Feifei Zheng ◽  
...  
Keyword(s):  
Water Supply ◽  
Transient Flow ◽  
State Of The Art ◽  
Turbulence Models ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Urban Water Supply ◽  
City Development ◽  
Rapid Urbanization

Abstract In the context of smart city development and rapid urbanization worldwide, urban water supply system (UWSS) has been of vital importance to this process. This paper presents a comprehensive review on the transient flow research for UWSS management. This review consists of two aspects as follows. The first aspect is about the development and progress of current transient theory, including transient flow models, unsteady friction and turbulence models, and numerical simulation methods. The other aspect is about the utilization and application of transient-based methods for effective UWSS diagnosis and management, including leakage, discrete and extended partial blockages, unknown branch, and other defects in water pipelines. A total of 228 publications have been reviewed and analyzed in this paper. In addition to the state-of-the-art progress and achievement of the research on transients, the advances and recommendations of future work in this field are also discussed for the development and management of next-generation smart UWSS in the paper.

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