Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102973
Title: Energy consumption comparison of a single variable-speed pump and a system of two pumps: Variable-speed and fixed-speed
Authors: Oshurbekov, S.
Kazakbaev, V.
Prakht, V.
Dmitrievskii, V.
Gevorkov, L.
Issue Date: 2020
Publisher: MDPI AG
Citation: Energy consumption comparison of a single variable-speed pump and a system of two pumps: Variable-speed and fixed-speed / S. Oshurbekov, V. Kazakbaev, V. Prakht, et al. — DOI 10.3390/app10248820 // Applied Sciences (Switzerland). — 2020. — Vol. 10. — Iss. 24. — P. 1-14. — 8820.
Abstract: The energy efficiency of a multi-pump system consisting of two low-power (0.75 kW) pumps operating in parallel mode and a single-pump mechanism (1.5 kW) is compared in this study. For this purpose, mathematical models, experimental data, and data retrieved from the manuals provided by the pump manufacturers are used. The single-pump system is fed by a single variable speed drive. A multi-pump system running in parallel mode consists of two pumps. One of them is driven by an induction motor connected directly to the electrical grid and equipped with a throttle. Another pump is actuated by an induction motor fed by a variable speed drive. The flowrate of the liquid in the multi-pump is controlled with the help of speed variation and throttling. In the case of the single-pump system the conventional speed control method is applied during the analysis. For both pump system topologies, the daily and annual energy consumption is obtained. As a result of conducted calculations, it was shown that the multi-pump provides 29.8% savings in comparison to the single-pump system in the case of a typical flowrate profile. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: CENTRIFUGAL PUMP
ENERGY EFFICIENCY
INDUCTION MOTOR
THROTTLING CONTROL
VARIABLE SPEED CONTROL
URI: http://hdl.handle.net/10995/102973
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85103860760
PURE ID: 20521925
ISSN: 20763417
DOI: 10.3390/app10248820
metadata.dc.description.sponsorship: The work was partially supported by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, Project No. FEUZ-2020-0060).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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