IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i23p4423-d289383.html
   My bibliography  Save this article

Energy Management of Low-Pressure Systems Utilizing Pump-Unloading Valve and Accumulator

Author

Listed:
  • Patrick M. Stump

    (School of Mechanical Engineering, Purdue University, 610 Purdue Mall, West Lafayette, IN 47907, USA)

  • Nathan Keller

    (School of Mechanical Engineering, Purdue University, 610 Purdue Mall, West Lafayette, IN 47907, USA)

  • Andrea Vacca

    (School of Mechanical Engineering, Purdue University, 610 Purdue Mall, West Lafayette, IN 47907, USA)

Abstract

In the context of improving energy efficiency and fuel consumption of mobile hydraulic equipment, it is important to analyze all the sources of power loss occurring within the hydraulic systems. While plenty of analyses have been performed on the working implements and the main transmission systems, very little attention has been paid to low-pressure (LP) systems until recently. LP systems are required on closed-circuit hydraulic systems to replenish losses, provide cooling flow, and maintain a pilot pressure necessary to operate hydraulic control valves and variable displacement units. It is shown that these circuits, which are often thought to have minimal impact on power consumption, actually cause significant, continuous power loss. A new method of power savings in these circuits is investigated through management of charge pump flow by application of an accumulator-sense pump-unloading (ASPU) valve. This work further proposes the combination of a split LP architecture with an ASPU valve. Three systems are simulated using Simcenter Amesim ® and MATLAB/Simulink ® . Using realistic duty cycles and unit loss models on a circuit for mobile off-road hydraulic equipment, it is shown that a standard LP system can consume about 5 kW of power. Power savings of up to 65% over a standard LP system are demonstrated by the proposed architecture.

Suggested Citation

  • Patrick M. Stump & Nathan Keller & Andrea Vacca, 2019. "Energy Management of Low-Pressure Systems Utilizing Pump-Unloading Valve and Accumulator," Energies, MDPI, vol. 12(23), pages 1-17, November.
  • Handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4423-:d:289383
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/23/4423/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/12/23/4423/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Grzegorz Filo & Edward Lisowski & Janusz Rajda, 2020. "Pressure Loss Reduction in an Innovative Directional Poppet Control Valve," Energies, MDPI, vol. 13(12), pages 1-13, June.
    2. Lukasz Stawinski & Jakub Zaczynski & Adrian Morawiec & Justyna Skowronska & Andrzej Kosucki, 2021. "Energy Consumption Structure and Its Improvement of Low-Lifting Capacity Scissor Lift," Energies, MDPI, vol. 14(5), pages 1-14, March.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4423-:d:289383. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.