Theoretical calculations and experimental validation of flywheel energy storage density

doi:10.3969/j.issn.2095-4239.2014.04.004

Abstract

Abstract: Energy storage density is an important technical specification for the structure and materials design of flywheels. In this paper, theoretical analyses are carried out on the energy storage density of flywheels. Limiting factors on increasing energy storage density of flywheels are identified and analyzed. A simple correction method is put forward for the calculation of energy density of flywheels and data from the literature are used for the validation of the method. Currently, experimental flywheels in China have a linear velocity below abut 800 m/s with an energy density below 60 W·h/kg.

Key words: flywheel energy storage, stored energy density

CLC Number:

TM02

DAI Xingjian, WANG Yong, SHEN Zupei. Theoretical calculations and experimental validation of flywheel energy storage density[J]. Energy Storage Science and Technology, 2014, 3(4): 312-315.

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