By G. Genta
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Extra info for Kinetic Energy Storage. Theory and Practice of Advanced Flywheel Systems
Example text
Genta, [79-8]) Applications for fixed machines 43 system and then to study its behaviour during some selected conditions by a step-by-step integration of the equations of motion. 5 and given in reference [79-8]. The roll and pitch angles
The torpedo was eventually abandoned for political reasons and also because of difficulties encountered with the variable-pitch propellers. In the following eighty years there were many attempts to use flywheel accumulators for the storage of significant quantities of energy. Many of these attempts were technically successful, but the development of reliable electric and hydraulic accumulators and, above all, the low and decreasing cost of energy, limited their use to only a few occasional applications.
4 Road vehicle applications There is a great need for an energy accumulator able to fulfil the requirements of road vehicles. The majority of vehicles are used in city traffic. 23% of the total amount of energy used in Italy in 1975 was consumed by private motor cars in cities. This amounts to almost 40% of the whole quantity of energy used by the transport system and to almost 10% of the whole oil consumption. These figures differ from country to country, and it is to be expected that they are higher in the USA where the transport system uses up to 25% of the whole energy consumption against 18% in Italy, but the figures are typical for developed western countries.