ENERGY TRANSFER BETWEEN A MOVING BODY AND A MAGNETIC FIELD

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Abstract
The inductive transfer of energy between a moving body and a magnetic field is discussed together with its significance in the fields of direct energy conversion and plasma propulsion. The investigation is centered upon the interaction between a moving body and a sinusoidally oscillating magnetic field of idealized distribution. Scaling laws governing the various physical variables of the interaction are derived, and the values of the resultant parameters necessary to obtain maximum energy transfer are calculated. It is found that under these conditions the initial kinetic energy of the body can be increased by ~14× or decreased to ~1/14 during the interaction. The relation between these parameters (and hence the energy transfer) and the all important energy transfer/recirculating energy ratio is obtained and it is shown that, in fact, a working energy factor ~6 (or 1/6) is a more feasible proposition.

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