Green Energy
- Hydroelectric Power
Hydroelectric PowerHydro-electric power, using the potential energy of rivers, now supplies 17.5% of the world's electricity (99% in Norway, 57% in Canada, 55% in Switzerland, 40% in Sweden, 7% in USA). Apart from a few countries with an abundance...
- How A Wind Turbine Works
Let's Take A Look At How A Wind Turbine WorksThe easiest way to understand how a wind turbine works is to think of a fan operating in reverse.So instead of electricity spinning the blades to generate wind, the wind spins the blades to generate electricity!A...
- Geothermal Energy
What is Geothermal Energy? Basically, geothermal energy is the technique of gaining heat as energy source from earth’s surface. In order to produce electricity, most power plants require steam. Geothermal power plants use steam which is produced from...
- Solar Energy: The Energy That Comes From Outer Space
Solar energy is a clean energy as it generates neither greenhouse gas emissions nor pollution. Today, solar energy represents less than 1% of all energy produced by humans and Germany is the country that produces the most. There are two technologies for...
- How Tidal Works?
When water levels are high in oceans and tides are producing and rushing to and fro, it has potential to produce electricity out of it. For producing electricity out of such wild potential oceans barrage is installed arou nd the corner of river, then...
Green Energy
Ocean Energy
The ocean can produce two types of energy: thermal energy from the sun's heat, and mechanical energy from the tides and waves.
Oceans cover more than 70% of Earth's surface, making them the world's largest solar collectors. The sun's heat warms the surface water a lot more than the deep ocean water, and this temperature difference creates thermal energy. Just a small portion of the heat trapped in the ocean could power the world.
Ocean thermal energy is used for many applications, including electricity generation. There are three types of electricity conversion systems: closed-cycle, open-cycle, and hybrid. Closed-cycle systems use the ocean's warm surface water to vaporize a working fluid, which has a low-boiling point, such as ammonia. The vapor expands and turns a turbine. The turbine then activates a generator to produce electricity. Open-cycle systems actually boil the seawater by operating at low pressures. This produces steam that passes through a turbine/generator. And hybrid systems combine both closed-cycle and open-cycle systems.
Ocean mechanical energy is quite different from ocean thermal energy. Even though the sun affects all ocean activity, tides are driven primarily by the gravitational pull of the moon, and waves are driven primarily by the winds. As a result, tides and waves are intermittent sources of energy, while ocean thermal energy is fairly constant. Also, unlike thermal energy, the electricity conversion of both tidal and wave energy usually involves mechanical devices.
A barrage (dam) is typically used to convert tidal energy into electricity by forcing the water through turbines, activating a generator. For wave energy conversion, there are three basic systems: channel systems that funnel the waves into reservoirs; float systems that drive hydraulic pumps; and oscillating water column systems that use the waves to compress air within a container. The mechanical power created from these systems either directly activates a generator or transfers to a working fluid, water, or air, which then drives a turbine/generator.
Omega Green Energy
Oceans cover more than 70% of Earth's surface, making them the world's largest solar collectors. The sun's heat warms the surface water a lot more than the deep ocean water, and this temperature difference creates thermal energy. Just a small portion of the heat trapped in the ocean could power the world.
Workers install equipment for an ocean thermal energy conversion experiment in 1994 at Hawaii's Natural Energy Laboratory. Credit: A. Resnick, Makai Ocean Engineering, Inc.
Ocean mechanical energy is quite different from ocean thermal energy. Even though the sun affects all ocean activity, tides are driven primarily by the gravitational pull of the moon, and waves are driven primarily by the winds. As a result, tides and waves are intermittent sources of energy, while ocean thermal energy is fairly constant. Also, unlike thermal energy, the electricity conversion of both tidal and wave energy usually involves mechanical devices.
A barrage (dam) is typically used to convert tidal energy into electricity by forcing the water through turbines, activating a generator. For wave energy conversion, there are three basic systems: channel systems that funnel the waves into reservoirs; float systems that drive hydraulic pumps; and oscillating water column systems that use the waves to compress air within a container. The mechanical power created from these systems either directly activates a generator or transfers to a working fluid, water, or air, which then drives a turbine/generator.
Omega Green Energy
- Hydroelectric Power
Hydroelectric PowerHydro-electric power, using the potential energy of rivers, now supplies 17.5% of the world's electricity (99% in Norway, 57% in Canada, 55% in Switzerland, 40% in Sweden, 7% in USA). Apart from a few countries with an abundance...
- How A Wind Turbine Works
Let's Take A Look At How A Wind Turbine WorksThe easiest way to understand how a wind turbine works is to think of a fan operating in reverse.So instead of electricity spinning the blades to generate wind, the wind spins the blades to generate electricity!A...
- Geothermal Energy
What is Geothermal Energy? Basically, geothermal energy is the technique of gaining heat as energy source from earth’s surface. In order to produce electricity, most power plants require steam. Geothermal power plants use steam which is produced from...
- Solar Energy: The Energy That Comes From Outer Space
Solar energy is a clean energy as it generates neither greenhouse gas emissions nor pollution. Today, solar energy represents less than 1% of all energy produced by humans and Germany is the country that produces the most. There are two technologies for...
- How Tidal Works?
When water levels are high in oceans and tides are producing and rushing to and fro, it has potential to produce electricity out of it. For producing electricity out of such wild potential oceans barrage is installed arou nd the corner of river, then...