Comparative Costs of energies from different sources 09.12.08

Comment by Jerry Anderson on September 12, 2008 at 10:17am

To Ragaram Bojji. I would like to get more info on the gravity system to see how it works.

Comment by Rajaram Bojji on September 13, 2008 at 1:15am

Yes - in simple terms there is potential energy in a mass at a height , and which when allowed to fall down exerts a force equal to mass x acceleration due to gravity. Imagine this mass to be many orders larger than a mass on wheels, which needs to be accelerated at fraction of acceleration due to gravity in horizontal direction- then force needed is only the rolling mass x fraction of acceleration due to gravity. So through a variable gear transmission we connect and drive in controlled manner, the vertical force of mass moving down in a tower can be made to drive a mass in horizontal direction to a desired velocity. Then any mass which we transport has to come to a stop. Instead of wasting the kinetic energy, we take this energy back using the same process in reverse order- making the mass in gravity tower to rise against gravity, thus bringing the speeding mass to a stop. After accounting for friction losses, almost 70% energy is recovered back, So for the balance 30% we use electrical energy to bring back the mass to its original state of potential energy.

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