01-08-2012, 04:24 PM
Electricity Generation
Electricity.ppt (Size: 1.64 MB / Downloads: 44)
Simple Electric Generator
So simple electric generators found in power plants contain, magnets
and copper wire that when put into motion relative to one another
create the electric current that is sent out to homes.
The major problem in
electricity generation
Is where does the
Motion come from
that keeps the
copper wire and
magnets moving
relative to one
another.
Hydroelectric Power
Conversion from potential energy of
water to electric energy is at 80 – 90%
efficiency
Hydroelectric projects in the United
States have rated capacities from
950 – 6480 MW
The use of Water Power is much
greater in some other countries.
Norway obtains 99% of its electricity
from water power. Nepal, Brazil, and
New Zealand are close seconds.
Other Energy Considerations
Solar Power – uses the sun energy to either boil water or directly converts
solar energy to electrical energy
Ocean Thermal Energy Conversion – uses temperature differences
between different depths of ocean water to drive a heat engine. Working
fluid is ammonia which is gas at room temperature.