Saving energy using flywheels

Abstract

The flywheel system has shown through experimental testing to greatly reduce the fuel consumption and emissions output. In addition, the reduced peak power demand from the diesel engine increases the engine life. Furthermore, because of the energy storage made available by the flywheels, the diesel engine can be reduced in size for greater fuel and emissions savings. Initial field tests with a reduced-size engine have yielded fuel savings of up to 35% and more. As an added measure of reliability, if a single flywheel system were to become inoperable, the crane can continue operating with the remaining flywheel. If desired, this lone flywheel can be configured to perform at elevated power levels for a limited time until the service can be completed.