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NASA Glenn develops automated flywheel pulse-and-glide system; improving fuel economy up to 40-100%

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Innovators at NASA’s Glenn Research Center have developed an automated pulse-and-glide technique using a flywheel energy storage system for on-road vehicles; the technology, which NASA Glenn says can improve fuel economy over existing internal combustion or battery hybrid systems by 40-100%, is available for licensing.

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Study suggests fuel cell hybrid with supercapacitors for energy storage the most fuel efficient

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The fuel economy of the supercapacitor fuel cell hybrid, they noted, is higher despite the vehicle being heavier and more expensive. The main objective of this paper is to give an evaluation study of different FCHEV powertrains from the point of view of the fuel economy, cost and powertrain component sizing.

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NREL/GM Project Finds Ultracaps Perform as Well or Better Than NiMH Pack for Energy Storage in Mild Hybrid Vehicle

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NREL simulation results showed similar fuel consumption vs. energy window trends for various drive cycles, with approximately half of the fuel savings being provided by a window ? Fuel Economy and Performance of Mild Hybrids with Ultracapacitors: Simulations and Vehicle Test Results ( Presentation ). Pesaran, A.;

NiMH 299
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Go-Ahead and Williams Hybrid Power to develop flywheel energy storage for buses

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The Go-Ahead Group and Williams Hybrid Power (WHP), a subsidiary of Williams Grand Prix Engineering, have signed an agreement to develop a flywheel energy storage application for use in buses.

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Ricardo TorqStor flywheel energy storage technology receives SAE 2014 World Congress Tech Award

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Ricardo’s TorqStor high speed flywheel energy storage technology ( earlier post ) has been selected to receive the SAE Tech Award, as one of the top five technologies to be on display at the SAE World Congress 8-10 at the COBO Center, Detroit. Ricardo’s TorqStor. Click to enlarge.

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Study Finds High-Speed Flywheels a Competitive Energy Storage System for Fuel Cell Hybrids

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Reed Doucette and Malcolm McCulloch at the University of Oxford (UK) have compared high-speed flywheels, batteries, and ultracapacitors on the bases of cost and fuel economy as the energy storage system in a fuel cell based hybrid electric vehicle. Their paper is in press in the Journal of Power Sources.

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UC Davis Study Finds That Ultracapacitor-based Micro-Hybrid Systems Can Deliver Substantial Fuel Economy Improvements

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Using a micro-hybrid system featuring carbon/carbon ultracapacitor units as energy storage can result in significant increases in fuel economy over a baseline conventional vehicle, according to a study by Dr. Andrew Burke at UC Davis. Burke, 2009. The micro-hybrid used a 30 Wh, 6 kW peak power ultracapacitor unit.