Optimum flywheel sizing for parallel and series hybrid vehicles

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Flywheels have the possibility of providing high turnaround efficiency and high specific power output. These characteristics are very important for the successful manufacture of parallel and series hybrid vehicles, which have the potential for providing high fuel economy and very low emissions with range and performance comparable to today`s light-duty vehicles. Flywheels have a high specific power output, but relatively low specific energy output. Therefore, it is of importance to determine energy and power requirements for flywheels applied to light-duty vehicles. Vehicle applications that require an energy storage system with high power and low energy are likely to benefit from ... continued below

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12 p.; Other: FDE: PDF; PL:

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Aceves, S.M. & Smith, J.R. December 20, 1996.

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Description

Flywheels have the possibility of providing high turnaround efficiency and high specific power output. These characteristics are very important for the successful manufacture of parallel and series hybrid vehicles, which have the potential for providing high fuel economy and very low emissions with range and performance comparable to today`s light-duty vehicles. Flywheels have a high specific power output, but relatively low specific energy output. Therefore, it is of importance to determine energy and power requirements for flywheels applied to light-duty vehicles. Vehicle applications that require an energy storage system with high power and low energy are likely to benefit from a flywheel. In this paper, a vehicle simulation code and a flywheel model are applied to the calculation of optimum flywheel energy storage capacity for a parallel and a series hybrid vehicle. A conventional vehicle is also evaluated as a base-case, to provide an indication of the fuel economy gains that can be obtained with flywheel hybrid vehicles. The results of the analysis indicate that the optimum flywheel energy storage capacity is relatively small. This results in a low weight unit that has a significant power output and high efficiency. Emissions generated by the hybrid vehicles are not calculated, but have the potential of being significantly lower than the emissions from the conventional car.

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12 p.; Other: FDE: PDF; PL:

Notes

OSTI as DE98050933

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  • World car conference 1997, Riverside, CA (United States), 19-22 Jan 1997

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  • Other: DE98050933
  • Report No.: UCRL-JC--126259
  • Report No.: CONF-970191--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 358801
  • Archival Resource Key: ark:/67531/metadc682964

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 20, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 19, 2016, 8:31 p.m.

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Aceves, S.M. & Smith, J.R. Optimum flywheel sizing for parallel and series hybrid vehicles, article, December 20, 1996; California. (digital.library.unt.edu/ark:/67531/metadc682964/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.