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 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 Information technologies implementation for reducing water losses in water supply systems

2020 ◽  
Vol 164 ◽  
pp. 01005
Author(s):  
Dmitry Serov
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Information Technologies ◽  
Automated System ◽  
Water Supply Systems ◽  
Water Losses ◽  
Saint Petersburg ◽  
Russian Water ◽  
Automation Systems ◽  
Supply Systems

The article discusses the elements of an automated system for collecting, storing and transmitting data on water consumption, modern metering devices, data collection and transmission devices. The author analyzes the shortcomings of existing accounting and analysis automation systems at Russian water utilities. A comprehensive approach to automated systems in the field of water consumption accounting is proposed. The article considers the experience of the State unitary enterprise “Vodokanal of Saint Petersburg” in the sphere development and application of a single automated complex for diagnostics, monitoring and management of the water supply network. The goals and main functions of the complex are revealed, the main stages and results of its implementation are presented.

Achieving sustainable irrigation development in agricultural areas of Serbia with limited water resources

2019 ◽  
Vol 48 (2) ◽  
pp. 126-135 ◽  
Author(s):  
Željka Rudić ◽  
Goran Nikolić ◽  
Dragiša Stević ◽  
Mile Božić ◽  
Ksenija Mačkić ◽  
...  
Keyword(s):  
Water Supply ◽  
Interdisciplinary Approach ◽  
Water Source ◽  
Irrigated Agriculture ◽  
Water Supply Systems ◽  
Wide Range ◽  
Agricultural Areas ◽  
Sustainable Irrigation ◽  
Supply Systems

Irrigation has contributed significantly to poverty alleviation and food security; however, the sustainability of irrigated agriculture is being questioned both economically and environmentally. Agriculture is the economic sector where most water is consumed, but the lowest price is practised. This article presents an interdisciplinary approach to selecting and prioritizing infrastructure, by differentiating water sources for irrigation, in the case of two complex irrigation systems. Comparative analysis was undertaken for major hydrological, hydraulic, hydrotechnical and economic parameters in order to estimate a long-term water supply for irrigation. In the case of complex irrigation water supply systems, differentiating the ‘subsystems’ per water source and allowing their separate development require less investment and give a better chance for the project implementation. The average calculated investments in basic irrigation infrastructure were in a wide range, from EUR3327 to 10,103 ha−1, depending on anticipated water source (impoundments, groundwater and rivers). Economic water price also varied widely, EUR0.09–0.30 m−3, depending on the water source for irrigation.

scholarly journals Water Consumption Variability Based on Cumulative Data From Non-simultaneous and Long-term Measurements

2021 ◽  
Author(s):  
Jacek Wawrzosek ◽  
Syzmon Ignaciuk ◽  
Justyna Stańczyk ◽  
Joanna Kajewska-Szkudlarek
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Demand ◽  
Fuzzy Time Series ◽  
Water Supply Systems ◽  
Short Term ◽  
Continuous Processes ◽  
Short And Long Term ◽  
Demand Patterns

AbstractDevices for water consumption measurement provide data from periodical readings in a non-simultaneous and cumulative manner. This may result in inaccuracies within the process of inference about the short-term habitual patterns of water supply network users. Maintaining systems at the interface between periodic and continuous processes requires the continuous improvement of research methodology. To obtain reliable results regarding the variability of water consumption, the first step should be to estimate it for each observation day by periodic averaging and a possible water balancing approach, but the analysis of the value of estimators obtained in this way usually does not allow for studying autocorrelation. However, other methods indicate the existence of multiplicative parameters characterizing short- and long-term variations in water demand. The purpose of this study is to create a new and deterministic method for tackling the problem associated with a lack of short-term detailed data with fuzzy time series using a multiplicative model for water consumption. Satisfactory results have been obtained, demonstrating that the dispersed data, received in a cumulative manner for random periods of measurement, can be analyzed by the methodology of proposed statistical inference. The observed variability in water consumption may be used in the planning and modernization of water supply systems, development of water demand patterns, hydraulic models, and in the creation of forecasting models of water consumption.

scholarly journals Metabolic Modelling: A Strategic Planning Tool for Water Supply Systems Management

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 585 ◽  
Author(s):  
Giada Felisa ◽  
Ilaria Lauriola ◽  
Valentina Ciriello ◽  
Vittorio Di Federico
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Performance Metrics ◽  
Water Supply Systems ◽  
Flexible Tool ◽  
Metabolic Modelling ◽  
Industrial Sectors ◽  
Water Withdrawals ◽  
Supply Systems

Water resources are essential for the economic development and sustenance of human activities belonging to the civil, agricultural and industrial sectors. Increasing water stress conditions, mainly due to climate change and population growth, imply the need to improve the resilience of water supply systems and account for sustainability of water withdrawals. Metabolic modelling approaches represent a flexible tool able to provide a support to decision making in the medium-long term, based on sustainability criteria. Here, these concepts are adopted to analyse part of the water supply network in the Province of Reggio-Emilia (Italy). Different water withdrawals scenarios are considered to account for a potential decrease in water resources availability from a quantitative perspective. As a second step, these scenarios are compared by means of a set of key performance metrics able to identify the most sustainable long-term strategy for a dynamic management of the water supply system. Results of these analysis allow to increase the resilience of the network under future scenarios, while protecting the water resources.

scholarly journals Assessment of Renewal Priority of Water Pipeline Network against Earthquake Risk

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 572
Author(s):  
Shogo Hamamoto ◽  
Lisa Ito ◽  
Akihiro Tokai
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Earthquake Risk ◽  
Water Supply Systems ◽  
Adverse Impacts ◽  
Pipeline Networks ◽  
Water Pipeline ◽  
Priority Assessment ◽  
Supply Systems

Long-term outage of drinking water supply after earthquakes has large adverse impacts on the lives of residents and cities’ water supply systems. Priority assessment is required to determine the effective order of preparing the measures against these hazards. Previous studies have insufficiently focused on the effects of seismic resistance of core pipelines, thereby affecting all the other branched pipelines that supply the water to each residential area. In our research, we aimed to propose the appropriate order of core pipelines derived from the center of the water treatment plants in Osaka, Japan against the Nankai Trough earthquake. Solutions that cause less damage have been needed because natural disaster prediction has had a lot of uncertainty. We proposed indices that can evaluate an appropriate renewal plan that considers the damage of core pipelines of water and the renewal cost for core pipeline networks based on the scenario analysis and the Monte Carlo simulation. The amount of water distribution of core pipelines in each area is the top priority when renewing them in terms of cost-effectiveness and expected rate of water outage under the disaster.

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