A review of hydro-pneumatic and flywheel energy storage for hydraulic systems

Authors

  • Paul M. Cronk Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA
  • James D. Van de Ven Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA

DOI:

https://doi.org/10.1080/14399776.2017.1386061

Keywords:

Hydraulic energy storage, accumulator, flywheel, hybrid energy storage, hydro-mechanical hybrid, storage

Abstract

This review will consider the state-of-the art in the storage of mechanical energy for hydraulic systems. It will begin by considering the traditional energy storage device, the hydro-pneumatic accumulator. Recent advances in the design of the hydraulic accumulator, as well as proposed novel architectures will be discussed. The review will continue with a discussion of energy storage flywheels. This will include recent advances in flywheel design and the properties of flywheels, particularly when compared to accumulators, as applied to hydraulic systems. These differences necessitate a discussion of the hydraulic system architectures used to incorporate flywheels, which will cover the various methods that have been proposed for utilising energy storage flywheels in hydraulic systems. The review will conclude by highlighting some of the unanswered questions in this area of engineering research and design.

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Author Biographies

Paul M. Cronk, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA

Paul M. Cronk is a graduate student and research assistant in the Mechanical Energy and Power Systems (MEPS) Laboratory in the Mechanical Engineering Department at the University of Minnesota. The author obtained a BS degree in Mechanical Engineering at the United States Naval Academy in Annapolis, MD degree in 2008. From 2008 to 2013, the author served as a officer in the US Navy aboard the nuclear powered submarine USS Houston. His research interests are in hydraulic energy storage and hydraulic power regeneration system design.

James D. Van de Ven, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA

James D. Van de Ven is an associate professor and McKnight Land-Grant professor at the University of Minnesota in the Department of Mechanical Engineering where he operates the Mechanical Energy and Power Systems (MEPS) Laboratory. The author received his PhD in Mechanical Engineering from the University of Minnesota in 2006. From 2007 to 2011, he was an assistant professor in the Mechanical Engineering Department at Worcester Polytechnic Institute. Prior to joining WPI, the author was a post-doctoral research associate at the University of Minnesota in the NSF sponsored Engineering Research Center for Compact and Efficient Fluid Power. The author research interests are in efficient energy conversion, energy storage, fluid power, kinematics and machine design.

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Published

2018-08-01

How to Cite

Cronk, P. M., & Ven, J. D. V. de. (2018). A review of hydro-pneumatic and flywheel energy storage for hydraulic systems. International Journal of Fluid Power, 19(2), 69–79. https://doi.org/10.1080/14399776.2017.1386061

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