Temperature difference between the face of the first water power station, that is, open cycle power station in Abidjan, the weakness of many scientists aspire to improve it further improve its power generation principles. In 1964, the United States Anderson, founder of ocean thermal energy power generation and his son, an engineer at the meeting, the first published study on the water temperature difference power generation results. They have come up with a low boiling point liquid (such as propane and liquid ammonia) as the working medium, the steam as the working fluid of the program. This vapor pressure can increase by several times smaller power plant size. They also suggested that if the generating unit installed in a large container of, the vessel moored in the sea and submarine Shen Dao Shidangshenduo, you can avoid the Pohuai storm, the production of Dianneng You submarine cable to land Shang Shu Song. Anderson raised his son as a low boiling point working fluid in a closed loop recycling, so that this temperature difference power generation for the closed cycle. Although the closed loop can not solve the open-loop in the existing difficulties, but overcome the open-loop greatest weakness, so this program was put forth, to get the support and attention throughout the world.

Closed cycle, though the open-loop step forward, but there are still some problems, such as a large heat exchanger not only accounts for half of total investment in the power station, and directly affect the device efficiency. Another example is the pressure in the closed loop than open cycle of high and, therefore, improve the structure of the device requirements. These are solved in closed loop the major technical problems. Although the closed loop is not perfect, but still gradually replaced the open cycle, become the main form ideapad U330 battery of sea water temperature difference power generation.

Currently, scientists began trying to open cycle and combined with the advantages of closed cycle, create a combined cycle mode. In order to solve the deep-sea cold water extraction of the difficulties, some scientists have managed to combine solar energy utilization, such as the introduction of solar heating pool water heating; manufacture of artificial sea water film to increase the surface temperature; have some idea of scientists on the use of mountain Deep cold water instead of snow. Thus, not only do not have to go deep cold water extraction, and in temperate seas is also possible to generate electricity from sea water temperature. Some scientists also tried to go to sea ice in the polar power. In the polar regions, ice water temperature -1-3 degrees and air temperatures are -20 degrees or below, their large temperature difference, but the distance was close, only a few meters to tens of meters apart, if the use of their temperature difference to generate electricity, is another convenient enough.

Not difficult to see, the above programs, power generation principles are inseparable from Claude’s scientific experiments. Recently, some scientists from Claude experimental program proposes to use the phenomenon of thermal power generation, thermal energy of seawater. Thermal power generation phenomenon refers to two different conductors (semiconductors), due to the temperature difference of two joints, two joints in between the electromotive force generated phenomenon. This new vision, sea temperature difference will power a revolution.

The world’s first sea water temperature closed cycle power plant came from the Anderson invention since the water temperature difference power generation to create a new situation. Countries around the world engaged in research and testing various designs such as the mushroom, has witnessed a gratifying weather. People look forward to sea as soon as possible from the experimental thermal energy to industrial power generation. In the early 20th century, early 60s, research boom has turned to the United States from France in just 10? 20 years, the United States sea thermal power generation has become the most advanced countries.

May 1979 29 say, the world’s first thermal power station of a sea Aspire 1680 battery of Hawaii in the United States successfully put into industrial power generation, as the island’s residents, the supply of electricity for lighting at stations and terminals. Hawaii Island in the central Pacific, is located 20 degrees north latitude, near the sea surface water temperature is high all year round, winter is 24 degrees, 28 degrees in summer. Only 1.2 km in the offshore areas, 400 meters water depth can be 10 degrees of cold water, 800 meters water depth there is 5 degrees cold water, seawater temperature difference power generation provides a superior natural conditions.

This water temperature power plant installed in the barge offshore platform, the platform moored in the Hawaiian island of 2.4 kilometers east of the sea. Power station capacity of the units of 50 kilowatts, using liquid ammonia as the working medium of the closed circulatory system, and later installed dozens of 50-kW units, with a total installed capacity of 1,000 kw. World’s first thermal power plant built and the water running, not only proved the feasibility of seawater temperature difference power generation technology, and provide a great deal of practical experience, and also marked the water temperature has started generating electricity from the pilot-scale Methods of Development Zhuanxiang use stage.

Last 10-20 years, interested in sea water temperature difference power generation more and more scientists, but also target more and more. Has already started to develop a variety of designs, such as floating, submarine fixed, and a variety of circulatory system, etc., are very mature and feasible. For example, Lockheed design, capacity of 16 million kilowatts, half submerged in water throughout the plant, the total length of 450 meters, a diameter of 75 meters, 18 meters above the sea, using liquid ammonia as the working medium, using titanium for heat switch material, the device consumes 260,000 tons of concrete, cost 2660 U.S. dollars per kilowatt, a total investment of 4-5 billion U.S. dollars.

Currently, the size of Shanghai water temperature is to a large power station development, for example, the construction of a 400 thousand kilowatts of thermal power stations, of which only the cold water pipe is a diameter of 30 meters, 900 meters long monster, like a construction area of 21 million square LifeBook M2010 battery meters, 300 floor skyscraper high. Cold water pipe cold water extraction capacity will be 3,000 cubic meters / second, equivalent to the Yangtze River flows into the sea per second to 1 / 10.

In the next 10-20 years, the sea temperature will significantly increase power generation, seawater temperature in 2020 the United States is expected to generate electricity generating capacity will reach the United States 10% of the total generating capacity. Seawater temperature difference power generation has gone through 100 years of rugged course, the star has been a symbol of success in the sparkling Pacific Ocean.