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Theoretical Analysis of Active Flow Ripple Control in Positive Displacement Pumps

Author

Listed:
  • Paolo Casoli

    (Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy)

  • Carlo Maria Vescovini

    (Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy)

  • Fabio Scolari

    (Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy)

  • Massimo Rundo

    (Department of Energy, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy)

Abstract

Positive displacement machines present a well-known major drawback that is the oscillation in delivered flow rate. This paper presents two active solutions for reducing the flow ripple generated by a pump with an external device actuated by means of a piezo-stack actuator. The work is focused on a theoretical analysis, with the aim of collecting information about the performance of the solutions proposed and their main advantages and drawbacks. The active methods proposed involve a cylindrical actuator connected to the delivery line of the pump. The piston could be actuated directly by a piezo-stack actuator or by a differential pressure modulated by a proportional piezo actuated valve. The actuators were modelled and a control algorithm based on Least Mean Square algorithm was used to achieve the adaptability for both systems at different operating conditions. The developed mathematical model permits to define the great potential of these solutions that can drastically reduce the flow ripple. The first architecture presented resulted as the best solution, while the second one allowed reduction of the production cost.

Suggested Citation

  • Paolo Casoli & Carlo Maria Vescovini & Fabio Scolari & Massimo Rundo, 2022. "Theoretical Analysis of Active Flow Ripple Control in Positive Displacement Pumps," Energies, MDPI, vol. 15(13), pages 1-22, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4703-:d:848921
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    References listed on IDEAS

    as
    1. Massimo Rundo & Giorgio Altare & Paolo Casoli, 2019. "Simulation of the Filling Capability in Vane Pumps," Energies, MDPI, vol. 12(2), pages 1-18, January.
    2. Paolo Casoli & Mirko Pastori & Fabio Scolari & Massimo Rundo, 2019. "Active Pressure Ripple Control in Axial Piston Pumps through High-Frequency Swash Plate Oscillations—A Theoretical Analysis," Energies, MDPI, vol. 12(7), pages 1-18, April.
    3. Xinran Zhao & Andrea Vacca, 2019. "Theoretical Investigation into the Ripple Source of External Gear Pumps," Energies, MDPI, vol. 12(3), pages 1-26, February.
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    Cited by:

    1. 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.
    2. Paolo Casoli & Carlo Maria Vescovini & Massimo Rundo, 2023. "One-Dimensional Fluid Dynamic Modeling of a Gas Bladder Hydraulic Damper for Pump Flow Pulsation," Energies, MDPI, vol. 16(8), pages 1-18, April.
    3. Andriy Chaban & Marek Lis & Andrzej Szafraniec & Vitaliy Levoniuk, 2022. "An Application of the Hamilton–Ostrogradsky Principle to the Modeling of an Asymmetrically Loaded Three-Phase Power Line," Energies, MDPI, vol. 15(21), pages 1-19, November.

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