Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points

Reliability, along with energy efficiency, is an important characteristic of pump units in various applications. In practical pump applications, it is important to strike a balance between reliability and energy efficiency. These indicators strongly depend on the applied control method of the pump u...

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Main Authors: Safarbek Oshurbekov, Vadim Kazakbaev, Vladimir Prakht, Vladimir Dmitrievskii
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/11/1297
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author Safarbek Oshurbekov
Vadim Kazakbaev
Vladimir Prakht
Vladimir Dmitrievskii
author_facet Safarbek Oshurbekov
Vadim Kazakbaev
Vladimir Prakht
Vladimir Dmitrievskii
author_sort Safarbek Oshurbekov
collection DOAJ
description Reliability, along with energy efficiency, is an important characteristic of pump units in various applications. In practical pump applications, it is important to strike a balance between reliability and energy efficiency. These indicators strongly depend on the applied control method of the pump unit. This study analyzes a trade-off method for regulating a system with three parallel pumps equipped with only one frequency converter (multi-pump single-drive system). A typical operating cycle of a pumping system with variable flow rate requirements is considered. The proposed trade-off method is compared with the traditional regulation, when a change in the operating point of the pump is achieved only by changing the rotation speed, and with the method for maximum reliability. It is shown that the proposed trade-off method makes it possible to ensure sufficient reliability of the multi-pump system operation without a significant increase in energy consumption.
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spelling doaj.art-3d04b581b7aa4981ac89c373ab0a6ee02023-11-21T22:57:23ZengMDPI AGMathematics2227-73902021-06-01911129710.3390/math9111297Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating PointsSafarbek Oshurbekov0Vadim Kazakbaev1Vladimir Prakht2Vladimir Dmitrievskii3Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, RussiaDepartment of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, RussiaDepartment of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, RussiaDepartment of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, RussiaReliability, along with energy efficiency, is an important characteristic of pump units in various applications. In practical pump applications, it is important to strike a balance between reliability and energy efficiency. These indicators strongly depend on the applied control method of the pump unit. This study analyzes a trade-off method for regulating a system with three parallel pumps equipped with only one frequency converter (multi-pump single-drive system). A typical operating cycle of a pumping system with variable flow rate requirements is considered. The proposed trade-off method is compared with the traditional regulation, when a change in the operating point of the pump is achieved only by changing the rotation speed, and with the method for maximum reliability. It is shown that the proposed trade-off method makes it possible to ensure sufficient reliability of the multi-pump system operation without a significant increase in energy consumption.https://www.mdpi.com/2227-7390/9/11/1297centrifugal pumpenergy efficiencyinduction motorparallel pumpsthrottlingvariable speed pump
spellingShingle Safarbek Oshurbekov
Vadim Kazakbaev
Vladimir Prakht
Vladimir Dmitrievskii
Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
Mathematics
centrifugal pump
energy efficiency
induction motor
parallel pumps
throttling
variable speed pump
title Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
title_full Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
title_fullStr Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
title_full_unstemmed Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
title_short Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points
title_sort improving reliability and energy efficiency of three parallel pumps by selecting trade off operating points
topic centrifugal pump
energy efficiency
induction motor
parallel pumps
throttling
variable speed pump
url https://www.mdpi.com/2227-7390/9/11/1297
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AT vladimirprakht improvingreliabilityandenergyefficiencyofthreeparallelpumpsbyselectingtradeoffoperatingpoints
AT vladimirdmitrievskii improvingreliabilityandenergyefficiencyofthreeparallelpumpsbyselectingtradeoffoperatingpoints