Development of a new methodology to obtain the characteristic pump curves that minimize the total cost at pumping stations

Moreno, M.; Planells, P.; Córcoles, J.I.; Tarjuelo, J.M.; Carrión, Pedro

doi:10.1016/j.biosystemseng.2008.09.024

Cited by 57 publications

(34 citation statements)

References 14 publications

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“…Pumped water systems have been analyzed by different authors [99][100][101][102][103] whose main objective has been to minimize the energy costs. Rodriguez-Diaz et al [99] proposed a new methodology with energy savings between 10% and 30% in real case studies, considering the most critical consumption points, which depend on needs and location.…”

Section: Pumped Water Systemsmentioning

confidence: 99%

“…Rodriguez-Diaz et al [99] proposed a new methodology with energy savings between 10% and 30% in real case studies, considering the most critical consumption points, which depend on needs and location. Moreno et al [100] developed a methodology in which characteristic and efficiency curves are optimized depending on the recorded flows, obtaining a 32.33% average reduction of installed power in the studied networks.…”

Section: Pumped Water Systemsmentioning

confidence: 99%

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Energy Recovery in Existing Water Networks: Towards Greater Sustainability

Sánchez

Sánchez‐Romero

Ramos

et al. 2017

Water

111

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Analyses of possible synergies between energy recovery and water management are essential for achieving sustainable improvements in the performance of irrigation water networks. Improving the energy efficiency of water systems by hydraulic energy recovery is becoming an inevitable trend for energy conservation, emissions reduction, and the increase of profit margins as well as for environmental requirements. This paper presents the state of the art of hydraulic energy generation in drinking and irrigation water networks through an extensive review and by analyzing the types of machinery installed, economic and environmental implications of large and small hydropower systems, and how hydropower can be applied in water distribution networks (drinking and irrigation) where energy recovery is not the main objective. Several proposed solutions of energy recovery by using hydraulic machines increase the added value of irrigation water networks, which is an open field that needs to be explored in the near future.Keywords: irrigation water networks; water-energy nexus; renewable energy; sustainability and efficiency; hydropower solutions; water management Hydropower GenerationSociety's energy consumption worldwide has increased by up to 600% over the last century. This increase has been a direct result of population growth since the industrial revolution, in which energy has been provided mainly by fossil fuels. Nevertheless, today and in the near future, renewable energies are expected to be more widely implemented to help maintain sustainable growth and quality of life and, by 2040, to reduce energy consumption down to the 2010 levels [1].Sustainability must be achieved by using strategies that do not increase the overall carbon footprint, considering all levels of production (macro-and microscale) of the different supplies. These strategies' development has to be univocally linked to new technologies [2]. Special attention must be paid to those new strategies that are related to energy recovery. These new techniques have raised interesting environmental and economic advantages. Therefore, a deep knowledge of the water-energy nexus is crucial for quantifying the potential for energy recovery in any water system [3], and defining performance indicators to evaluate the potential level of energy savings is a key issue for sustainability, environmental, or even management solutions [4].Energy recovery, with the aim of harnessing the power dissipated by valves (in pressurized flow) or hydraulic jumps (in open channels), is becoming of paramount importance in water distribution

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Section: Pumped Water Systemsmentioning

confidence: 99%

Section: Pumped Water Systemsmentioning

confidence: 99%

Energy Recovery in Existing Water Networks: Towards Greater Sustainability

Sánchez

Sánchez‐Romero

Ramos

et al. 2017

Water

111

View full text Add to dashboard Cite

show abstract

“…In this context, recent international research has highlighted the need to optimize both water and energy efficiency. For example, the California Energy Commission (CEC) launched the "Agricultural Peak Load Demand Program" with the main objective of reducing peaks in energy consumption in irrigation districts (ITRC, 2005); Moreno et al (2009) focused on the improvement of energy efficiency at pumping stations and the determination of optimal pump curves; Pulido Calvo et al (2003) developed a pump selection algorithm for reducing energy costs in irrigation districts and Vieira and Ramos (2009) introduced a water turbine in the network in order to use any excess available hydraulic energy. In Spain, the IDAE has developed a protocol where some of the most common energy saving measures for pressurized systems are identified .…”

Section: Potential Energy Saving Measuresmentioning

confidence: 99%

“…However, as this period takes only 2 or 3 months, and the rest of the year the demanded flows are much lower, and therefore the pump operation point is not the optimum to maximize their PEE. By installing new smaller pumps, more appropriate for flows demanded during off-peak periods, and using variable speed pumps, it is possible to increase PEE significantly and therefore reduce energy consumption (Moreno et al, 2009). …”

Section: Improving the Energy Efficiency Of The Pumping Systemmentioning

confidence: 99%

The paradox of irrigation scheme modernization: more efficient water use linked to higher energy demand

Díaz

Pérez-Urrestarazu

Poyato

et al. 2011

Span. j. agric. res.

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In recent years, many modernization processes have been undertaken in irrigation districts with the main objective to improve water use efficiency. In southern Spain, many irrigation districts have either been modernized or are currently being improved. However, as part of the modernization process some unexpected side effects have been observed. This paper analyzes the relative advantages and limitations of modernization based on field data collected in a typical Andalusian irrigation district. Although the amount of water diverted for irrigation to farms has been considerably reduced, consumptive use has increased, mainly due to a change in crop rotations. The costs for operation and system maintenance have dramatically risen (400%) as the energy for pumping pressurized systems is much higher now compared to gravity fed systems used previously. Then a regional analysis in ten Southern Spain irrigation districts of the relationship between energy requirements and irrigation water applied has been carried out. Results show that to apply an average depth of 2590 m 3 ha, the energy required was estimated to be 1000 kWh ha -1 . A new approach is needed that involves efficient management of both water and energy resources in these modernized systems. Finally, some energy saving options are identified and discussed.Additional key words: energy use; performance indicators; pressurized irrigation networks; Spain. ResumenLa paradoja de la modernización de zonas regables: uso más eficiente del agua vinculado al aumento de la demanda energética En los últimos años se han llevado a cabo numerosos procesos de modernización en comunidades de regantes con el principal objetivo de mejorar la eficiencia en el uso del agua. En el sur de España se han modernizado, o están en proceso, muchas comunidades de regantes, pero se han observado efectos diferentes a los previstos. En este trabajo se analizan las ventajas e inconvenientes de la modernización usando datos de campo obtenidos en una comunidad de regantes típica de Andalucía. Aunque la cantidad de agua destinada para el riego de las parcelas se redujo, el uso consuntivo de agua se incrementó, fundamentalmente debido al cambio de cultivos. Los costes de operación y mantenimiento del sistema aumentaron considerablemente (400%) ya que la energía requerida para bombear el agua a la red de presión es muy superior en comparación con la situación anterior. Posteriormente se analiza la relación entre el uso del agua y el consumo energético en diez comunidades de regantes del sur de España. Los resultados muestran que para aplicar una lámina media de 2590 m 3 ha -1 , la energía requerida es de 1000 kWh ha -1 . Por ello, en este tipo de redes, cada vez es más necesario manejar los recursos agua y energía de una manera eficiente. Finalmente se discuten diversas medidas de ahorro energético.Palabras clave adicionales: eficiencia energética; España; indicadores de gestión; redes de riego a presión.

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“…Management tools for irrigable areas, which are decisive and essential for the decision making process and minimize the effects of water scarcity, should include: a) determining crop water requirements and crop fertilizing by means of tools supplied by the IAS (Ortega et al, 2004b; b) real time hydraulic simulation of water distribution networks, which requires specialised software such as EPANET (Rossman, 2000), GESTAR (Aliod et al, 1997) and others that use calculation algorithms to obtain flow and pressure (Moreno et al, 2007a(Moreno et al, , 2008; c) regulation and management systems for pumping stations that maximize energetic efficiency (Planells et al, 2005;Moreno et al, 2007bMoreno et al, , 2009aMoreno et al, , 2010; d) determining crop patterns with optimum gross margin when subject to restrictions such as water availability by using software such as MOPECO (Modelo de OPtimización ECOnómica; Ortega et al, 2004a) or AquaCrop (Steduto et al, 2009); e) obtaining performance indicators to be used in techniques such as benchmarking for improving management of irrigable areas (Malano and Burton, …”

Section: New Technologies Applied In Irrigationmentioning

confidence: 99%

Review.Water resources deficit and water engineering

Tarjuelo

Jiang

Moreno

et al. 1970

Span. j. agric. res.

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The increasing demand of water for different uses, together with the variable availability of this resource, which is due to the increasingly frequent periods of drought, make necessary to undertake a set of structural and contextual actions to cope with the permanent or temporary scarcity situations. Within the search for solutions to the progressively more widespread situation of limited water availability for agriculture, this paper aims to state the role that engineering can play to face up this deficit, taking into account the social, economic, and environmental issues of water, together with the priority of uses. Structural measures can help to:1) increase the water availability (increased or more flexible supply through reservoirs, water transfers, water rights interchange centres, desalination, reuse, aquifer recovery, and conjunctive use of surface water and groundwater), and 2) rationalize water consumption by improving demand management, including the irrigation management improvement, as well as maximizing the efficiency of irrigation systems. In addition to these measures, other social issues can be implemented through public awareness and education, adequate economic policies, legislative adaptation, and technical support to municipalities and water use associations. Thus, to face up water scarcity in a region it is necessary to identify the different water sources, including alternative sources such as desalination and reuse, and develop an appropriate model of management as well as infrastructure for water storage and regulation.Additional key words: desalination; drought; irrigation; wastewater reuse; water management; water scarcity; water transfers. ResumenRevisión. El déficit hídrico y la ingeniería del agua La creciente demanda de agua para los distintos usos, junto con la variabilidad en la disponibilidad de este recurso debido a los cada vez más frecuentes periodos de sequía, hacen necesario llevar a cabo un conjunto de acciones estructurales y coyunturales para poder hacer frente a las situaciones de escasez temporal o permanente que se producen. Dentro de la búsqueda de soluciones a la situación cada vez más generalizada de limitada disponibilidad de agua para la agricultura, el presente trabajo pretende incidir en el papel que puede jugar la ingeniería a la hora de hacer frente a esta situación de déficit, teniendo en cuenta los aspectos sociales, económicos y ambientales del agua y sus prioridades de uso. Las medidas estructurales pueden contribuir a: 1) aumentar los recursos (aumento o flexibilidad de la oferta mediante embalses, trasvases, centros de intercambio de derechos de agua, desalinización, reutilización, recarga de acuíferos, o el uso conjunto de aguas superficiales y subterráneas), o 2) racionalizar los consumos (mejorando la gestión de la demanda, incluyendo la mejora de la gestión del regadío y la mejora de la eficiencia del riego en parcela). Además de estas medidas puede llevarse a cabo otras de carácter social como la concienciación y educación ciudadana, el fo...

show abstract

Development of a new methodology to obtain the characteristic pump curves that minimize the total cost at pumping stations

Cited by 57 publications

References 14 publications

Energy Recovery in Existing Water Networks: Towards Greater Sustainability

Energy Recovery in Existing Water Networks: Towards Greater Sustainability

The paradox of irrigation scheme modernization: more efficient water use linked to higher energy demand

Review.Water resources deficit and water engineering

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