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A Numerical Analysis of an Innovative Flow Ripple Reduction Method for External Gear Pumps

Author

Listed:
  • Gianluca Marinaro

    (Department of Industrial Engineering, University of Naples Federico II, Via Claudio, 21, 80125 Naples, Italy)

  • Emma Frosina

    (Department of Engineering, University of Sannio, Piazza Guerrazzi, 82100 Benevento, Italy)

  • Adolfo Senatore

    (Department of Industrial Engineering, University of Naples Federico II, Via Claudio, 21, 80125 Naples, Italy)

Abstract

In this paper, an innovative solution to minimize noise emission, acting on the flow ripple, in a prototype External Gear Pump (EGP) is presented. Firstly, a new tool capable to completely simulate this pump’s typologies, called EgeMATor, is presented; the hydraulic model, adopted for the simulation, is based on a lumped parameter method using a control volume approach. Starting from the pump drawing, thanks to different subroutines developed in different environments interconnected, it is possible to analyze an EGP. Results have been compared with the outputs of a three-dimensional CFD numerical model built up using a commercial code, already used with success by the authors. In the second section, an innovative solution to reduce the flow ripple is implemented. This technology is called Alternative Capacitive Volumes (ACV) and works by controlling and uniformizing the reverse flow, performing a consistent reduction of flow non-uniformity amplitude. In particular, a high reduction of the flow non-uniformity is notable in the frequency domain on the second fundamental frequency. The technology is easy to accommodate in a pump housing, especially for high-pressure components, and it helps with reducing the fluid-borne noise.

Suggested Citation

  • Gianluca Marinaro & Emma Frosina & Adolfo Senatore, 2021. "A Numerical Analysis of an Innovative Flow Ripple Reduction Method for External Gear Pumps," Energies, MDPI, vol. 14(2), pages 1-22, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:471-:d:481933
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    References listed on IDEAS

    as
    1. Massimo Rundo, 2017. "Models for Flow Rate Simulation in Gear Pumps: A Review," Energies, MDPI, vol. 10(9), pages 1-32, August.
    2. Emma Frosina & Adolfo Senatore & Manuel Rigosi, 2017. "Study of a High-Pressure External Gear Pump with a Computational Fluid Dynamic Modeling Approach," Energies, MDPI, vol. 10(8), pages 1-20, July.
    3. Rituraj Rituraj & Andrea Vacca & Mario Antonio Morselli, 2020. "Thermal Modelling of External Gear Machines and Experimental Validation," Energies, MDPI, vol. 13(11), pages 1-24, June.
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    Cited by:

    1. Valeriy Sanchugov & Pavel Rekadze, 2022. "New Method to Determine the Dynamic Fluid Flow Rate at the Gear Pump Outlet," Energies, MDPI, vol. 15(9), pages 1-29, May.
    2. Jakub Milan Hradecký & Antonín Bubák & Martin Dub, 2022. "Evaluation Methodology of Rotary Flow Dividers Used as Pressure Intensifiers with Creation of a New Pressure Multiplying Efficiency," Energies, MDPI, vol. 15(6), pages 1-14, March.
    3. Alessandro Ferrari & Paola Fresia & Massimo Rundo & Oscar Vento & Pietro Pizzo, 2022. "Experimental Measurement and Numerical Validation of the Flow Ripple in Internal Gear Pumps," Energies, MDPI, vol. 15(24), pages 1-15, December.
    4. Jakub Milan Hradecký, 2023. "Description of Pressure-Multiplying Efficiency Model Creation Used for Pressure Intensifiers Based on Rotary Flow Dividers," Energies, MDPI, vol. 16(10), pages 1-21, May.

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