scholarly journals Energy audit in water supply systems: a proposal of integrated approach towards energy efficiency

Water Policy ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 1126-1141
Author(s):  
Ana Paula Pereira da Silveira ◽  
Herlander Mata-Lima
Keyword(s):  
Energy Efficiency ◽  
Water Supply ◽  
Energy Management ◽  
Integrated Approach ◽  
Water Supply Systems ◽  
Energy Audit ◽  
Water Utility ◽  
Key Issues ◽  
User Friendly ◽  
Supply Systems

Abstract An integrated procedure has been designed to identify and rank the opportunity for energy efficiency in water supply systems (WSS). The main objective is to help WSS managers to identify key issues to be treated as nonconformity and develop a program for continual improvement of energy efficiency. The procedure was built in collaboration with practitioners and implemented in a company. One of the concerns during the development of the procedure was to provide companies with a fast and user-friendly tool. Complementarily, it also complies with International Organization for Standardization (ISO) and European Committee for Standardization (CEN) standards, and is of great relevance for any company of the sector of water utility. Recommendations for enhancing the energy management in WSS are also addressed in the audit procedure. The findings derived from the evaluation of the state-of-the-art and applications have led to the identification of key issues for energy saving. The success of energy management programs will be based on energy audit and on the top managements' engagement, workers' attitude and qualification, and the financial resources available.

scholarly journals Joint energy and water management scheme for water supply systems in Romania

2019 ◽  
Vol 85 ◽  
pp. 06008 ◽  
Author(s):  
Aida Delcea ◽  
Ioan Bitir-Istrate ◽  
Roxana Pătraşcu ◽  
Cristian Gheorghiu
Keyword(s):  
Water Supply ◽  
Energy Management ◽  
Water Supply Systems ◽  
Energy Audit ◽  
Short Term ◽  
Water Losses ◽  
Management Scheme ◽  
Energy Consuming ◽  
Supply Systems

Keeping in mind the short-term and long-term aims of cost depletion and sustainable development respectively, a joint water and energy management scheme for water supply systems that leads to reduced energy losses is proposed. For water utilities, drinkable water's treatment and pumping and wastewater treatment are the main energy-consuming processes and a proportional part of this energy is wasted with non-revenue water. In Romania, these losses can reach critical levels so highlighting them becomes a crucial aspect in assessing the system's efficiency. This paper presents a scheme that combines energy audit and water balance techniques that can become a tool for both energy auditors and managers, by allowing the quantification of embedded energy of water losses. The methodology is adapted for the conditions in Romania, where data collection and processing is mainly done manually.

scholarly journals Sustainable Water Supply Systems Management for Energy Efficiency: A Case Study

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5101
Author(s):  
Izabela Zimoch ◽  
Ewelina Bartkiewicz ◽  
Joanna Machnik-Slomka ◽  
Iwona Klosok-Bazan ◽  
Adam Rak ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Water Supply ◽  
Energy Management ◽  
Water Demand ◽  
High Energy ◽  
Water Supply Systems ◽  
Systems Management ◽  
Hydraulic Models ◽  
Supply Systems

A prerequisite for achieving high energy efficiency of water supply systems (understood as using less energy to perform the same task) is the appropriate selection of all elements and their rational use. Energy consumption in water supply systems (WSS) is closely connected with water demand. Especially in the case of oversized water supply systems for which consumers’ water demand is at least 50% less than previously planned and flow velocity in some parts of the system is below 0.01 m·s−1, this problem of excessive energy consumption can be observed. In the literature, it is difficult to find descriptions and methods of energy management for such a case. The purpose of this study was both an evaluation of the current demand of an oversized WSS and a preliminary technical analysis of the possibility for energy saving. Solutions are presented that resulted in improvements in energy management, thus increasing energy efficiency. The conducted analyses indicate the wide use of numerical, hydraulic models, among others, for the needs of the sustainable oversize water supply systems management in order to improve energy efficiency. Those simulations only give energy consumption results as a first step in the process of decision-making for the modernization process, in which investment costs should be taken into account as a second step. Thus, this paper emphasizes the crucial role of hydraulic models as a good analytical tool used in decision support systems (DSS), especially for large, oversized water supply systems.

Better water quality and higher energy efficiency by using model predictive flow control at water supply systems

2013 ◽  
Vol 62 (1) ◽  
pp. 1-13 ◽  
Author(s):  
M. Bakker ◽  
J. H. G. Vreeburg ◽  
L. J. Palmen ◽  
V. Sperber ◽  
G. Bakker ◽  
...  
Keyword(s):  
Water Quality ◽  
Energy Efficiency ◽  
Water Supply ◽  
Flow Control ◽  
Water Supply Systems ◽  
Supply Systems

Management tools for hydro energy interventions in water supply systems

2015 ◽  
Vol 10 (2) ◽  
pp. 214-228 ◽  
Author(s):  
Jos Frijns ◽  
Enrique Cabrera Marchet ◽  
Nelson Carriço ◽  
Dídia Covas ◽  
Antonio J. Monteiro ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Integrated Approach ◽  
Hydraulic Performance ◽  
Water Supply Systems ◽  
Full Potential ◽  
Management Tools ◽  
Efficient Operation ◽  
Hydropower Potential ◽  
Supply Systems

There is significant potential for energy recovery through the use of micro-hydropower installations in water supply systems (WSS). To exploit the full potential of hydro energy in balance with the optimal hydraulic performance and water supply service, multi-objective management tools are needed. This paper presents the application of four management tools: (1) an energy audit to evaluate the potential hydro energy in the water pressurised systems of Alcoy; (2) multi-criteria decision-making methods for the selection of the preferred energy-efficient operation of a system with a pump-storage reservoir and hydro-turbines in the Algarve; (3) a numerical dynamic tool for optimal turbine operation in the water distribution of Langhirano; and (4) an urban water optioneering tool to estimate the hydropower potential of the external aqueduct network in Athens. These methods showed that through an integrated approach the WSS can be optimised for both hydraulic performance and hydro energy production.

scholarly journals Safety of Water Supply Systems and Wastewater Treatment of Industrial Enterprises

2016 ◽  
Vol 5 (5) ◽  
pp. 64-74
Author(s):  
Шилков ◽  
Vladimir SHilkov ◽  
Аникин ◽  
Yu. Anikin
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Water Supply ◽  
Integrated Approach ◽  
Water Supply Systems ◽  
Critical Systems ◽  
Basic Principles ◽  
Strategic Risk ◽  
Industrial Enterprises ◽  
Supply Systems

In this article, the necessity of integrated approach to the analysis and solution of problems of safety of water supply and wastewater treatment are declared. The results of the study the main problems of the systems of production of water supply and wastewater treatment are described. Practical measures for solving problems are proposed. Pressing need of application of means of informatization, strategic risk analysis methods and innovative technologies of water treatment are declared. The basic principles of safe and effective critical systems of water supply and wastewater treatment in the sphere of production are proposed.

Modeling of hydraulic and energy efficiency indicators for water supply systems

2015 ◽  
Vol 48 ◽  
pp. 540-557 ◽  
Author(s):  
Mateus Ricardo Nogueira Vilanova ◽  
José Antônio Perrella Balestieri
Keyword(s):  
Energy Efficiency ◽  
Water Supply ◽  
Water Supply Systems ◽  
Supply Systems ◽  
Efficiency Indicators

scholarly journals Application of Innovative Technologies for Active Control and Energy Efficiency in Water Supply Systems

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3278
Author(s):  
Armando Carravetta ◽  
Maurizio Giugni ◽  
Stefano Malavasi
Keyword(s):  
Energy Efficiency ◽  
Water Supply ◽  
Active Control ◽  
Energy Use ◽  
Water Systems ◽  
Water Supply Systems ◽  
Innovative Technologies ◽  
New Perspective ◽  
Supply Systems ◽  
Anthropic Pressure

The larger anthropic pressure on the Water Supply Systems (WSS) and the increasing concern for the sustainability of the large energy use for water supply, transportation, distribution, drainage and treatment are determining a new perspective in the management of water systems [...]

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