Analytical Methods and Verification of Impeller Outlet Velocity Slip of Solid–Liquid Disc Pump with Multi-Type Blades

Pei, Yingju; Liu, Qingyou; Wang, Chuan; Wang, Guorong

doi:10.1007/s13369-020-04951-3

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…Moreover, Pei Yingju et al [48,121] proposed two calculation methods of average circumferential velocity of the blade disc pump. One is the calculation method that uses the axial dimensions of the blade area and bladeless area in the impeller, as shown in Figure 8 and Equation (1).…”

Section: Energy Efficiency Modelmentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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Disc pumps have obvious advantages in dealing with difficult-to-pump media. Energy efficiency and sustainable energy management are important topics with regard to reducing costs and promoting carbon neutrality. Though the concept of the disc pump was proposed in the 1850s, development was slow and limited by its initial model. However, with the development of industries such as petrochemicals and food, the efficient pumping of difficult-to-pump media is much needed, but facing challenges. Therefore, research on energy-efficient disc pumps is particularly important moving forward. In this paper, the available information from the open literature about the research and development of the disc pump will be thoroughly reviewed. It focuses on the historical development, energy efficiency and physical model application of the disc pump. The review ends with a proposal for the direction of future development, and in this aspect, it is proposed that the energy efficiency prediction model based on velocity slip theory, the energy management system based on multi-scenarios and the design method based on energy conversion theory are important. The latest achievements in energy conversion are given. This review also provides a new perspective for the development of energy-efficient disc pumps.

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Section: Energy Efficiency Modelmentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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“…They are mainly devoted to mechanical stress analysis due to disc mode deformation related to the way the two rotating discs are connected (Chen, Y. et al [5]). Some of them, like Gao [6], Zhang [7], Yin et al [8], and Pei et al [9], give overall performance results but with information lacking on geometrical parameters protected by patents.…”

Section: Introductionmentioning

confidence: 99%

Blade Number Effects in Radial Disc Pump Impellers: Overall Performances with Cavitation Sensitivity Analysis

Jiang,

Liu,

Bois

et al. 2023

JMSE

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Straight radial impeller disc pumps are widely used in several industrial applications for hard-to-pump working flow media, such as two-phase inlet conditions, either including non-miscible bubbles or solid particles with a high concentration within the main working flow. Compared with conventional pump designs, these pumps have not been widely studied, because of their particular simple design and low efficiency values that can however reach a maximum value of 0.5 with a good pressure increase in single-phase conditions. Regarding this, no basic analysis has been performed to build one-dimensional design rules considering the relative effects of design parameters proper to these unusual designs like the blade number, blade height and disc spacing. This step is an important one for two-phase flow performance evaluations which are usually derived from single-phase ones as for conventional pumps. Two different disc pump designs with, respectively, 8 and 10 radial blades, are numerically and experimentally investigated. Experimental investigations are performed in an open loop tap water test facility, under various working conditions, combining flow rate and rotational speed variations. The overall pump performances are compared and analyzed, including cavitation onset phenomena that have been found to influence the experimental performances of both pumps. The overall performance modification between both impeller designs is analyzed. Comparisons between CFD and experimental results give reliable results and can be considered to cover a sufficiently wide range of design parameters allowing us to build future adapted design rules for such specific designs.

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“…Y.C Chen et al [15] carried out multi-working condition full-flow field numerical simulation analysis on key parameters of disc pump blade, including blade number, blade width and blade shape, respectively, and established the influence law of different parameters on its hydraulic characteristics. Y.J Pei et al [16][17] systematically analyzed the influence of key parameters of disk pump on its hydraulic characteristics, revised the energy efficiency prediction model from the theoretical mechanism, and established a high energy efficiency prediction method, which provided a theoretical basis for the high energy efficiency design and structural optimization design of disk pump.…”

Section: Introductionmentioning

confidence: 99%

Study on hydraulic characteristics and internal flow mechanism of composite blade disc pump

Lian

Zhou

Wang

et al. 2022

J. Phys.: Conf. Ser.

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Disc pump is widely used in difficult-pump-medium transportation such as petroleum and chemical industry. Discontinuous blade impellers play an important role in the passability and energy efficiency of disk pump. The research of design and internal flow mechanism are particularly important. Based on the structural characteristics and the internal flow mechanism of the original model, the improved design of the blade structure is carried out. Through the experimental verification and the numerical analysis of multiple working conditions, the influence law of the new composite blade on the hydraulic characteristics and internal flow mechanism of the disc pump is obtained. The results show that the error of energy efficiency characteristics of simulation and experiment under different flow conditions is within 5%, and the accuracy of simulation results meets the requirements; The hydraulic characteristics of the improved model are about 5.8% higher than that of the original model. The driving force of the new composite blade is more sufficient and the flow field is improved more obviously; The low pressure is located in the center of the impeller and gradually increases to the outlet of the impeller. There is obvious energy and mass conversion between the bladed region and bladeless region. The research results can provide a reference for the structural design of disc pump composite blade and the analysis of internal flow mechanism.

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Analytical Methods and Verification of Impeller Outlet Velocity Slip of Solid–Liquid Disc Pump with Multi-Type Blades

Cited by 6 publications

References 17 publications

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Blade Number Effects in Radial Disc Pump Impellers: Overall Performances with Cavitation Sensitivity Analysis

Study on hydraulic characteristics and internal flow mechanism of composite blade disc pump

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