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dc.creatorBaptista, Victor Buono da Silva-
dc.creatorCórcoles, Juan Ignacio-
dc.creatorColombo, Alberto-
dc.creatorMoreno, Miguel Ángel-
dc.identifier.citationBAPTISTA, V. B. da S. et al. Feasibility of the use of variable speed drives in center pivot systems installed in plots with variable topography. Water, [S.l.], v. 11, n. 10, 2019.pt_BR
dc.description.abstractPumping systems are the largest energy consumers in center pivot irrigation systems. One action to reduce energy consumption is to adjust the pumping pressure to that which is strictly needed by using variable speed drives (VSDs). The objective of this study was to determine the feasibility of including VSDs in pumping systems that feed center pivot systems operating in an area with variable topography. The VSPM (Variable Speed Pivot Model) was developed to perform hydraulic and energy analyses of center pivot systems using the EPANET hydraulics engine. This tool is able to determine the elevation of each tower for each position of the center pivot using any type of digital elevation model. It is also capable of simulating, in an accurate manner, the performance of the center pivot controlled with a VSD. The tool was applied to a real case study, located in Albacete, Spain. The results show a reduction in energy consumption of 12.2%, with specific energy consumptions of 0.214 and 0.244 kWh m−3 of distributed water obtained for the variable speed and fixed speed of the pumping station, respectively. The results also show that for an irrigation season, to meet the water requirements of the maize crop in the region of the study (627 mm), an average annual savings of 14,107.35 kWh was obtained, which resulted in an economic savings of 2821.47€.pt_BR
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)pt_BR
dc.subjectHydraulic modelpt_BR
dc.subjectVariable topographypt_BR
dc.subjectEnergy consumptionpt_BR
dc.subjectVariable speedpt_BR
dc.subjectCenter pivot systempt_BR
dc.titleFeasibility of the use of variable speed drives in center pivot systems installed in plots with variable topographypt_BR
Appears in Collections:DEG - Artigos publicados em periódicos
DRH - Artigos publicados em periódicos

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