Ocean energy is renewable energy, and ocean energy refers to renewable energy related to sea water. The ocean receives, stores and emits energy through various physical processes. These energies exist in the ocean in the form of tides, waves, temperature differences, salinity gradients, ocean currents, etc. The area of the Earth is about 510 million square kilometers, of which the land area is 149 million square kilometers, or 29%; the surface area of the oceans reaches 361 million square kilometers, or 71%.
In terms of sea level, the average altitude of all land is approximately 840 meters, while the average depth of the ocean is 380 meters. The total volume of sea water reaches 1.37 billion cubic kilometers. The endless sea not only provides humans with navigation, water sources, and rich mineral deposits, but it containsalso enormous energy. It stores solar energy and wind energy derived in seawater in the form of thermal energy, mechanical energy, etc., which are not lost as easily as on land and in the air.
Energy characteristics of the oceans:
1. The amount of ocean energy contained in the total mass of ocean water is enormous, but the energy per unit volume, unit area, and unit length is small. This means that if you want to get large amounts of energy, you need to get it from a large amount of seawater.
2． Ocean energy is renewable. Ocean energy comes from solar radiation and gravitation between celestial bodies. As long as the sun, moon and other celestial bodies coexist with the earth, this energy will be regenerated and will be inexhaustible.
3． Ocean energy can be divided into more stable and unstable energy sources. The moststable are the energy of temperature difference, the energy of salinity difference and the energy of ocean currents. Unstable energy is divided into two types: regular changes and irregular changes. Tidal energy and tidal current energy are unstable but change regularly. According to the changing laws of tidal currents, people make daily and hourly forecasts of tides and tides for various locations to predict the size and strength of tides at different times in the future. Tidal power plants and tidal power plants can organize power generation operations based on forecast tables. What is both unstable and irregular is the energy of the waves.
4． Ocean energy is a clean energy source, which means that once developed it will have little impact on environmental pollution.
Ocean energye is renewable energy, and ocean energy refers to renewable energy related to seawater. The ocean receives, stores, and emits energy through various physical processes. These energies exist in the ocean in the form of tides, waves, temperature differences, salinity gradients, ocean currents, etc. The area of the Earth is about 510 million square kilometers, of which the land area is 149 million square kilometers, or 29%; the surface area of the oceans reaches 361 million square kilometers, or 71%. In terms of sea level, the average altitude of all land is around 840 meters, while the average depth of the ocean is 380 meters. The total volume of sea water reaches 1.37 billion cubic kilometers. The endless sea not only provides humans with navigation, water sources, and rich mineral deposits, but it also contains enormous energy. It stores solar energy and wind energy derived in seawater in the form of thermal energy, mechanical energy, etc., which are not lost as easily as on land and in the air.