Optimal Pipe Sizing and Operation of Multistage Centrifugal Pumps for Water Supply

Pandey, Sunita; Singh, Rajesh; Mahar, Pooran S.

doi:10.1061/(asce)ps.1949-1204.0000447

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…After solving, it is compared with model 2, and the result is as shown in Figs. 16 to 18: In Fig. 16, the number of different solutions of model 2 and the improved model is comparable, and the solution distribution of model 2 is slightly better, but the difference is not large; in Fig.…”

Section: A Pareto Frontiers Under Different Evaluation Functionsmentioning

confidence: 93%

“…Ahmed, A et al studied a system with 5 parallel pumps to compare power consumption under different situations [15]. Pandey, S et al considered the optimization of energy consumption for three parallel pumps without speed regulation [16]. Jia, M et al considered the optimization of energy consumption in a system consisting of 7 different types of parallel pumps [17].…”

Section: Introductionmentioning

confidence: 99%

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Optimization Analysis of Full Life Cycle Energy Efficiency Multi-Objective Parallel Pump Sets

2022

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Aiming at the problem that the current single-objective control model of parallel pumping groups only focuses on the optimization of energy efficiency of operating conditions and operating costs, and cannot adjust the real-time working conditions of the pump group according to the comprehensive energy efficiency state of the pump group in the whole life cycle and adjust the pump group operation strategy accordingly, A multi-objective optimal control model for energy efficiency of a pump set is proposed, which can adjust the weight coefficients of three objective functions autonomously according to the current energy efficiency state of the pump set in the whole life cycle. In this way, the high energy efficiency of the parallel pump group in the low wear stage, that is, the low target deviation and specific energy consumption, and the high reliability in the high wear stage, that is, the lower impeller load improves the efficiency of the pump group in the whole life cycle and extend the service life of the pump group. Determine the multi-objective energy efficiency optimization control model of the pump group, use the main function linear and geometric weighting method, the ideal point value, and the distance deviation method to determine the objective function, and solve the multi-objective ideal point model with the help of LINGO, and obtain the optimal solution of the highest system total efficiency, the lowest pump group specific energy consumption and the highest system reliability. Pareto Frontier Comparison is used to study the transversality of the ideal point model solution set. Experimental results show that through the distribution of the model solution in the indicator space, the model can adjust the control strategy according to the real-time state of the pump group by adjusting the target weight combination.INDEX TERMS Parallel pumping groups; energy efficiency optimization; full life cycle; multi-objective

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Section: A Pareto Frontiers Under Different Evaluation Functionsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Optimization Analysis of Full Life Cycle Energy Efficiency Multi-Objective Parallel Pump Sets

2022

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“…The performance characteristics of a pump relate discharge with head and efficiency and can be represented as a polynomial of second or third degree (Pandey et al, 2020;Tu et al, 2012). In this study, a third degree polynomial is the best fit showing the relationship between discharge-head and discharge-efficiency, as shown by the following two general polynomial equations:…”

Section: Pump Characteristicsmentioning

confidence: 99%

Optimal design of a periodic‐move sprinkler irrigation system considering pump characteristics

Sithole

Singh

Mahar

2023

Irrigation and Drainage

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An optimisation model is developed for designing a single‐ and two‐pipe size periodic‐move sprinkler lateral for various values of uniform upward and downward slopes. Two layouts are considered, and the optimisation model maximizes the length of the main line subject to a minimum desirable pump efficiency and an allowable pressure variation without throttling the pump at the lateral inlet. The step‐by‐step approach is used for computing the frictional head loss of the pipelines for analysis of sprinkler pressure heads. The head‐discharge characteristics of sprinkler heads, the pipe characteristics of the lateral and main lines and the pump characteristics are matched to determine the optimal diameter and length of the main line and diameter of the lateral line. The applicability of the optimisation models are illustrated by solving standard design problems using LINGO 18.0. Larger pipe diameters for single‐ and two‐pipe size laterals resulted in an increase in the length of the main line and, subsequently, the area. The developed optimisation model can be used for designing the periodic‐move sprinkler irrigation system for any given field and farmers conditions according to field shape, topography of the land and availability of sprinkler components, pipe sizes and pumps.

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“…In [15], the optimization of the energy consumption of three parallel pumps without rotational speed regulation is considered. In [16], the optimization of the energy consumption of a system of seven parallel pumps of various types, some of which are equipped with VSD, is considered.…”

Section: Introductionmentioning

confidence: 99%

“…A large number of proposed various control strategies achieved by using different optimization methods demonstrate the complexity and necessity to take into account a large number of parameters when optimizing the energy consumption of a multi-pump system. A series of research works are devoted to comparing the energy consumption of various multi-pump systems [6,[14][15][16][17][18][19]. One of the issues that is not sufficiently described in the literature is the strategy for an optimal number of running pump selections in a multi-pump system for specific applications.…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Comparison of a Single Variable-Speed Pump and a System of Two Pumps: Variable-Speed and Fixed-Speed

et al. 2020

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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.

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Optimal Pipe Sizing and Operation of Multistage Centrifugal Pumps for Water Supply

Cited by 6 publications

References 8 publications

Optimization Analysis of Full Life Cycle Energy Efficiency Multi-Objective Parallel Pump Sets

Optimization Analysis of Full Life Cycle Energy Efficiency Multi-Objective Parallel Pump Sets

Optimal design of a periodic‐move sprinkler irrigation system considering pump characteristics

Energy Consumption Comparison of a Single Variable-Speed Pump and a System of Two Pumps: Variable-Speed and Fixed-Speed

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