Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/39288
metadata.artigo.dc.title: Feasibility of the use of variable speed drives in center pivot systems installed in plots with variable topography
metadata.artigo.dc.creator: Baptista, Victor Buono da Silva
Córcoles, Juan Ignacio
Colombo, Alberto
Moreno, Miguel Ángel
metadata.artigo.dc.subject: Hydraulic model
Variable topography
Energy consumption
Variable speed
Center pivot system
metadata.artigo.dc.publisher: Multidisciplinary Digital Publishing Institute (MDPI)
metadata.artigo.dc.date.issued: 2019
metadata.artigo.dc.identifier.citation: BAPTISTA, 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.
metadata.artigo.dc.description.abstract: Pumping 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€.
metadata.artigo.dc.identifier.uri: https://www.mdpi.com/2073-4441/11/10/2192
http://repositorio.ufla.br/jspui/handle/1/39288
metadata.artigo.dc.language: en_US
Appears in Collections:DEG - Artigos publicados em periódicos
DRS - Artigos publicados em periódicos

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