Optimal design of multistage centrifugal pump based on the combined energy loss model and computational fluid dynamics

Wang, Chuan; Shi, Weidong; Wang, Xikun; Jiang, Xiaoping; Yang, Yang; Li, Wei; Zhou, Lian

doi:10.1016/j.apenergy.2016.11.046

Cited by 195 publications

(91 citation statements)

References 16 publications

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“…Pumps are a type of general machine with many varieties and extensive applications, and they are used in all places with liquid flow in all national economic sectors . Statistics indicate that pumps' power consumption accounts for nearly 22% of the world's energy used by electric motors . Self‐priming centrifugal pumps, or self‐priming pumps, have no bottom valve in the inlet pipe.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and experimental study of the self‐priming process of a multistage self‐priming centrifugal pump

Wang

Zhang

et al. 2019

Int J Energy Res

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Summary Pumps are a type of general machine with many varieties and extensive application. To simulate really the self‐priming process of multistage self‐priming centrifugal pump, the numerical calculation of gas‐water two‐phase flow on a four‐stage self‐priming pump was performed based on ANSYS CFX software. Moreover, a transparent plastic tube was installed at the pump outlet, and the photographic technology was used to observe the appearance of gas‐water escape during the self‐priming process of multistage self‐priming centrifugal pump. The experimental results were compared with the numerical results. It is found that the whole self‐priming process of self‐priming pump can be divided into three stages: the initial self‐priming stage, the middle self‐priming stage, and the final self‐priming stage. Moreover, the self‐priming time of the initial and final self‐priming stages accounts for a small percentage of the whole self‐priming process, while the middle self‐priming stage is the main stage in the self‐priming process, which determines the length of self‐priming time. The experimental results are very close to the numerical results in the initial and middle self‐priming stages.

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Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] Statistics indicate that pumps' power consumption accounts for nearly 22% of the world's energy used by electric motors. [6][7][8][9][10] Self-priming centrifugal pumps, or self-priming pumps, have no bottom valve in the inlet pipe. The pump structure is changed such that it can store some water.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study of the self‐priming process of a multistage self‐priming centrifugal pump

Wang

Zhang

et al. 2019

Int J Energy Res

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“…In consequence, every industry depended on its designers experience, expertise, and technical intuition to design a good pump impeller [10]. The impeller geometrical profile can only be developed by playing a vital role on the streamline flow pattern of fluid.…”

Section: Methodsmentioning

confidence: 99%

“…It is well known that full data of a pump performance characteristics is essential for informing the technical specification of pumps. However, it can be difficult to obtain the detailed information required, the data of pumps from different literatures will be referenced [7][8][9][10]. In this study, a Fortran computer code is developed to predict performance characteristics of a RDE feedwater pump based on a number of impeller blade, and the calculation results of this numerical simulation will be compared with the existing operation data for a type of feedwater pump of HTR-10, China [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Design of Rde Feedwater Pump Impeller

Sudadiyo

2018

Tri Dasa Mega

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PRELIMINARY DESIGN OF RDE FEEDWATER PUMP IMPELLER. Nowadays, pumps are being widely used in the thermal power generation including nuclear power plants. Reaktor Daya Eksperimental (RDE) is a proposed nuclear reactor concept for the type of nuclear power plant in Indonesia. This RDE has thermal power 10 MW th , and uses a feedwater pump within its steam cycle. The performance of feedwater pump depends on size and geometry of impeller model, such as the number of blades and the blade angle. The purpose of this study is to perform a preliminary design on an impeller of feedwater pump for RDE and to simulate its performance characteristics. The Fortran code is used as an aid in data calculation in order to rapidly compute the blade shape of feedwater pump impeller, particularly for a RDE case. The calculations analyses is solved by utilizing empirical correlations, which are related to size and geometry of a pump impeller model, while performance characteristics analysis is done based on velocity triangle diagram. The effect of leakage, pass through the impeller due to the required clearances between the feedwater pump impeller and the volute channel, is also considered.Comparison between the feedwater pump of HTR-10 and of RDE shows similarity in the trend line of curve shape. These characteristics curves will be very useful for the values prediction of performance of a RDE feedwater pump. Preliminary design of feedwater pump provides the size and geometry of impeller blade model with 5-blades, inlet angle 14.5 degrees, exit angle 25 degrees, inside diameter 81.3 mm, exit diameter 275.2 mm, thickness 4.7 mm, and height 14.1 mm. In addition, the optimal values of performance characteristics were obtained when flow capacity was 4.8 kg/s, fluid head was 29.1 m, shaft mechanical power was 2.64 kW, and efficiency was 52 % at rotational speed 1750 rpm. Keywords

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“…The nondimensional results presented in this article enable preliminary design of centrifugal pumps for VADs and MCS devices. Wang et al [5] proposed a method to optimize the design of a typical multistage centrifugal pump based on energy loss model and Computational Fluid Dynamics (ELM/CFD).…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of the effective centrifugal pump parameters using the EFAST method

Safikhani

2017

Scientia Iranica

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In the present study, the effective parameters of centrifugal pumps are investigated using the EFAST Sensitivity Analysis (SA) method. The SA is performed using GMDH type artificial neural networks (ANN) which are based on validated numerical data of flow field in centrifugal pumps. There are four design variables namely: leading edge angle of blades on hub section (β 1 Hub ), leading edge angle of blades on shroud section (β 1 Shroud ), trailing edge angle of blades (β 2 ), and the stagger angle of blades on mid span (γ mid ) and there are two objective functions namely: efficiency () and the required NPSH of impeller. The results show that among design variables, β 2 has the highest effect on variations of  (46%) and NPSH (45%). Except β 2 , β 1 Hub and γ mid has the highest effect on NPSH (33%) and  (28%) respectively. The effects of all of the design variables on objective functions are shown in the results.

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Optimal design of multistage centrifugal pump based on the combined energy loss model and computational fluid dynamics

Cited by 195 publications

References 16 publications

Numerical and experimental study of the self‐priming process of a multistage self‐priming centrifugal pump

Numerical and experimental study of the self‐priming process of a multistage self‐priming centrifugal pump

Preliminary Design of Rde Feedwater Pump Impeller

Sensitivity analysis of the effective centrifugal pump parameters using the EFAST method

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