Results 171 to 180 of about 14,273 (209)

Composite flywheels for energy storage

Composites Science and Technology, 2006
Abstract Composite flywheels for energy storage have been proposed and investigated for the past several decades. Successful applications are, however, limited due to the inability to predict the performance – especially the long-term durability. In this investigation, a comprehensive study was proposed with the intent to implement composites in high
Jerome Tzeng, Ryan Emerson, Paul Moy
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Flywheel energy storage for spacecraft

Aircraft Engineering and Aerospace Technology, 2004
Flywheels can serve not only as attitude control devices, but also as energy storage devices, thereby eliminating the need for conventional batteries. Hence, a combined energy and attitude control system (CEACS) consisting of a double counter rotating flywheel assembly is proposed for small satellites in this paper.
Renuganth Varatharajoo, Mohamad Tarmizi Ahmad   +1 more
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Flywheel Energy Storage - Dynamic Modeling

2017 Ninth Annual IEEE Green Technologies Conference (GreenTech), 2017
A flywheel energy storage systems (FESS) is suitable for high-power, low-energy content to deliver or absorb power in surges. This type of application is very suitable for frequency regulation in an electric grid. In addition, a modern FESS is built as a high-efficiency, high-speed motor/generator drive system that employs modern power electronics ...
Eduard Muljadi, Vahan Gevorgian
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Flywheel energy storage for x‐ray machines

Medical Physics, 1984
X‐ray image quality for stop‐motion exposures is greatly affected by the system power capability. High power levels are required for adequate resolution, which often precludes the use of mobile x‐ray systems for stop‐motion exposures. Currently available mobile systems use (1) 90‐V nickel–cadmium batteries capable of 120 A, (2) a power line of 220 V ac,
M P, Siedband, D K, Showers
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Superconducting energy storage flywheel—An attractive technology for energy storage

Journal of Shanghai Jiaotong University (Science), 2010
Flywheel energy storage (FES) can have energy fed in the rotational mass of a flywheel, store it as kinetic energy, and release out upon demand. The superconducting energy storage flywheel comprising of magnetic and superconducting bearings is fit for energy storage on account of its high efficiency, long cycle life, wide operating temperature range ...
Ji-qiang Tang, Gang Liu, Jian-cheng Fang
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Topology optimization of energy storage flywheel

Structural and Multidisciplinary Optimization, 2016
To increase the energy storage density, one of the critical evaluations of flywheel performance, topology optimization is used to obtain the optimized topology layout of the flywheel rotor geometry. Based on the variable density method, a two-dimensional flywheel rotor topology optimization model is first established and divided into three regions ...
L. Jiang, C. W. Wu
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Linear flywheel for energy storage

American Journal of Physics, 1986
The shape that will allow the maximum kinetic energy to be stored in a linear flywheel is calculated and the advantages of assigning such a problem to an undergraduate advanced mechanics class is discussed.
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Technology of Magnetic Flywheel Energy Storage

Advanced Materials Research, 2012
.As a new way of storing energy, magnetic suspension flywheel energy storage, has provided an effective way in solving present energy problems with the characteristics of large energy storage, high efficiency and fast charge-discharge speed and so on.
Xiu Li Qi, Kang Zhang, Guang Xian Wang, Zhen Fu, Yi Chen Dong   +4 more
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Energy Storage in Flywheels: An Overview

Canadian Journal of Electrical and Computer Engineering, 2015
In a deregulated power market with increasing penetration of distributed generators and renewable sources, energy storage becomes a necessity. Renewable energy sources are characterized by a fluctuating and intermittent nature, which simply means that energy may be available when it is not needed, and vice versa. Energy storage devices can help rectify
Mohamed A. Awadallah, Bala Venkatesh
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Flywheel energy and power storage systems

Renewable and Sustainable Energy Reviews, 2007
For ages flywheels have been used to achieve smooth operation of machines. The early models where purely mechanical consisting of only a stone wheel attached to an axle. Nowadays flywheels are complex constructions where energy is stored mechanically and transferred to and from the flywheel by an integrated motor/generator.
Björn Bolund, Hans Bernhoff, Mats Leijon   +2 more
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