Experimental studies into the dependences of the axial lead coolant pump performance on the impeller cascade parameters

Beznosov, A. V.; Lvov, Aleksandr Vyacheslavovich; Bokov, Pavel Andreevich; Bokova, T. A.; Razin, V.A.

doi:10.1016/j.nucet.2017.05.009

Cited by 8 publications

(4 citation statements)

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“…Figure 1 shows an example of pump impeller [4]. The following are some formulas involved in computing preliminary design of a pump impeller model.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…7 In this section, numerical simulation has been applied for the preliminary design of new impeller with number of blades 4,5,6,7,8,9, and 10 at rotational speed of 1750 rpm and flow capacity of 4.8 kg/s. At the constantly rotational speed of motor shaft, number of blades at this impeller model have a significant effect on performance characteristics feedwater pump for a RDE case.…”

Section: P-issn: 1411-240x E-issn: 2527-9963 Nomor: 632/au3/p2mi-lipimentioning

confidence: 99%

“…The increase of interface between fluid stream and blades will cause the increment of hydraulic losses. Whereas if the number of blades was too few, the diffuser losses will increase the grow of diffuse extent of the flowing passage [4,5]. Other important parameters such as blade angles, blade diameter, eye diameter, flow capacity, and a rated rotational speed of pump shaft must also be considered in the design task of pump impeller [5].…”

Section: Introductionmentioning

confidence: 99%

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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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“…Figure 1 shows an example of pump impeller [4]. The following are some formulas involved in computing preliminary design of a pump impeller model.…”

Section: Mathematical Formulationmentioning

confidence: 99%

Section: P-issn: 1411-240x E-issn: 2527-9963 Nomor: 632/au3/p2mi-lipimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preliminary Design of Rde Feedwater Pump Impeller

Sudadiyo

2018

Tri Dasa Mega

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“…In 2016, Ferrini et al 14 designed a multiblade screw pump for the 300‐MWt pool‐type European lead‐cooled fast reactor (ELFR). In 2017, according to FT‐4 test facility, Beznosov et al 15 carried out experiment studies on the axial lead coolant pump performance with different blade parameters. In 2018, Lu et al 16 designed and did numerically studied on a centrifugal LBE coolant pump for SVBR reactor, and tested the performance of the pump based on water.…”

Section: Introductionmentioning

confidence: 99%

Design and hydraulic performance studies on an axial lead‐bismuth pump for GEN‐IV reactors

Wang

et al. 2020

Int J Energy Res

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Summary Lead or lead‐alloy‐cooled fast reactors (LFRs) have been proved to be the most promising generation IV reactors with high performance in neutron economy, thermal hydraulics and security features. When lead‐bismuth eutectic (LBE) is used as coolant for LFR, the primary LBE pump is a key conveying equipment in LFRs, because it pumps liquid LBE to remove decay heat produced by core. The hydraulic performance and coolant flow velocity of LBE coolant pump is of great importance for the safety aspects concerning LFRs. This study aims to design an axial LBE pump firstly based on the theory of planar cascade and streamline method, then establishes three‐dimensional model of the axial LBE pump and performs the simulation analysis based on Ansys CFX software to study the impact of design parameters on LBE pump hydraulic performance. The results show that the highest flow velocity occurs at the blade of pump and it increases with the rotating speed, while the pump efficiency and pump head appear up‐down tendency as the flow rate increasing. The optimum rotating speed and the corresponding impeller parameters are proposed based on the theoretic and numerical studies. The research work will provide a theoretical basis and referred solution for the design of primary pump small module LFRs.

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Quantitative analysis of energy loss and vibration performance in a circulating axial pump

Huang

Miao

et al. 2022

Energy

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Experimental studies into the dependences of the axial lead coolant pump performance on the impeller cascade parameters

Cited by 8 publications

References 0 publications

Preliminary Design of Rde Feedwater Pump Impeller

Preliminary Design of Rde Feedwater Pump Impeller

Design and hydraulic performance studies on an axial lead‐bismuth pump for GEN‐IV reactors

Quantitative analysis of energy loss and vibration performance in a circulating axial pump

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