Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1010047
Title: A comprehensive and well tested energy balance for water supply systems
Authors: Mamade, A.
Loureiro, D.
Alegre, H.
Covas, D.
Keywords: Energy balance;Energy efficiency;Water balance;Water losses;Water supply systems
Issue Date: Nov-2017
Publisher: Taylor & Francis
Citation: http://dx.doi.org/10.1080/1573062X.2017.1279189
Abstract: This paper presents a novel energy balance scheme and performance indicators for assessing energy efficiency in water supply systems. This assessment consists of a three-step procedure: system characterisation and data collection, energy balance calculation and energy performance indicators assessment. The main innovation is the integrated approach between energy and water balances allowing the quantification of energy inefficiencies directly associated with water losses. Comprehensive energy performance indicators can be calculated by utilities with different maturity levels allowing a fair comparison of energy efficiency between systems with different layouts and operational schemes. This energy balance scheme has been applied by 17 water utilities in Portugal. Results have shown that systems provide more than twice the minimum energy necessary to supply their consumers and, consequently, there is a significant energy saving potential: 40% through water loss reduction, 30% for changes in network operation and layout and 30% for pump inefficiency reduction.
URI: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1010047
Appears in Collections:DHA/NES - Comunicações a congressos e artigos de revista

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