Exploring Alternative Energy – How to use the sea to produce electricity
With the water including more than 70 percent of the Earth, it would logical to try to acquire more energy from the ocean. Ocean Thermal Energy Conversion or OTEC is one way. The French engineer Jacques D'Arsonval is the fruit of the idea. In 1881, an estimated ocean heat energy would be able to provide a great source of clean energy. In other words, different temperatures of the oceans in deep waters and shallow can run a heat engine that operates efficiently to changes in temperature.
Three States that are heavily involved in the exploration of OTEC. The U.S. is one of them and has great Hawaii OTEC facility. Tests done here to learn more about technology. It has been said in the ideal location for OTEC because the surface temperature of hot and cold temperatures access to the deep ocean. Japan, although it is not a large space for the HTA, created a closed cycle plant Nauru OTEC. Use the energy to feed the plant and surrounding communities. India also supports operations OTEC and is looking for ways to get new and better energy.
There are three ways to use OTEC: closed and open-cycle hybrid bike. Among the three cycles there are also three places, the earth, the plateau and the floating base.
A closed-loop system uses a liquid with low boiling point to turn a turbine. The warm waters of the ocean surface is pumped into the appearance of the liquid evaporates and becomes steam generator. Cold seawater is pumped through the other side, causing the substance to a liquid form and start the cycle again.
An open cycle using the temperature of the warm ocean surface to produce energy. warm sea water boils when placed in a container at low pressure. The steam turns the turbine of low pressure, which becomes the move generator. What is condensed back into liquid form when in contact with the cold temperatures of cold seawater.
A hybrid cycle contains features two systems. In hybrid system, hot water evaporates causing flash steam to vaporize the liquid boiling point lower. Vapors drive the turbine and the steam is condensed with cold to produce desalinated water.
Although it looks a great project and a wonderful way to use a safe environment, the problem is that technology is very expensive. The United States has not implemented any new evidence in nearly 10 years due to costs, especially with companies that focus on other energy sources. Few countries have worked on how to find an operating system. The reason why it is so expensive is because the main thing must be very pipe, sometimes a mile long to reach the bottom the sea to get cold water. The creation of this pipe and sustaining costs too high a price.
However one of the huge benefits offered OTEC is more than electricity. With the creation of cold water from the ocean floor, many other applications, such as air conditioning, chill-dirty agriculture, desalination and mineral extraction. But there are concerns worldwide about the effects of the use of alternative energy in the ocean can cause in the environment. Unfortunately, due to the lack of investigation of this issue can not get a response.
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