There is known technology to melt a metal or to heat
a food in high frequency electromagnetic field. The effect is based on
induction currents in electrically conductivity material. In this
case some magnetic counter flux is created and power input should be increased.
For example, if magnetic field is created by means of rotor, the rotor
will be decelerated according to heat energy that is created in the material.
Other way: alternating in time (or rotating) electric
field and dielectric material. In this case the kinetic energy of
rotor (that is an electric capacitor) is not connected with heat energy
of the dielectric material, i.e. value of heat energy that is created in
dielectric can be more than electric input energy that is necessary to
keep high intensity electric field in capacitor.
Liquid dielectric (oil) can be used as material
for heat exchange with water-vapour generator of electro-generator turbine.
Alexander V. Frolov
St.Petersburg, May 8, 2000