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Eco Factor: Plan to better the efficiency of tidal energy.
Researchers at NASA’s Jet Propulsion Laboratory have developed a cost-effective way to harness ocean tides and convert them into useful electricity in a more efficient manner. While conventional tidal generators work by using tidal wave to power an underwater turbine, this new system uses tidal turbine to generate a high pressure fluid, which is then used to run an onshore turbine.
According to the researchers, the system is based on the use of a special substance known as a phase change material that changes from a solid to a liquid as the temperature changes from cold to warm. Since the temperature inside an ocean keeps on fluctuating, it changes the shape of the phase change material and expands it. When this material expands, it increases the pressure of the fluid inside the pipes, which is then used to generate electricity.
Currently the technology is in its infancy and the researchers need to answer a few issues before commercial variants can be brought to the market. Initially the researchers have to find a way electricity will be transported to the shore, which might be miles away from the generators. Moreover, the system will demand the use of special wires that can withstand the extreme conditions present underwater.
Researchers at NASA’s Jet Propulsion Laboratory have developed a cost-effective way to harness ocean tides and convert them into useful electricity in a more efficient manner. While conventional tidal generators work by using tidal wave to power an underwater turbine, this new system uses tidal turbine to generate a high pressure fluid, which is then used to run an onshore turbine.
According to the researchers, the system is based on the use of a special substance known as a phase change material that changes from a solid to a liquid as the temperature changes from cold to warm. Since the temperature inside an ocean keeps on fluctuating, it changes the shape of the phase change material and expands it. When this material expands, it increases the pressure of the fluid inside the pipes, which is then used to generate electricity.
Currently the technology is in its infancy and the researchers need to answer a few issues before commercial variants can be brought to the market. Initially the researchers have to find a way electricity will be transported to the shore, which might be miles away from the generators. Moreover, the system will demand the use of special wires that can withstand the extreme conditions present underwater.
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