The ocean temperature difference can be used to power generation

Near the equator more than the sun, the sea surface temperature can be up to 25 to 28 ℃, the Persian gulf and red sea surrounded by hot land, the sea water temperature can be up to 35 ℃. In the depths of the ocean water temperatures at 500 ~ 1000 m only 3 ~ 6 ℃. But, you know, this seemingly everyone knows but common sense behind the great scientific discoveries. In recent years, scientists have proposed using by solar heating of the warm surface water in the ocean temperature difference between deep and cold water to generate power for energy. At 30 degrees from the equator, most of the sea temperature difference between surface and deep sea around 20 degrees, if in the area, build every 15 kilometers an ocean temperature difference power generation device, theoretically maximum power estimation is 50 billion KW. According to calculation, from 20 degrees south latitude to 20 degrees north latitude range of ocean ocean, as long as the half of which is used to power generation, water temperature is only an average decline l ℃, can get 60 billion kilowatts of electricity, all the electrical energy produced is equal to the world. Using the ocean temperature difference can power generation can say inexhaustible, use. This belongs to the natural energy, will not cause environmental pollution. Compared with other natural energy, can day and night, is not limited by time seasonal climate conditions, and stable energy supply. Due to the deep sea pumped water contains many nutrients, and to improve Marine fishery production. This make it in today's shortage of resources, become a human powerful choice in the future.