AU2007309524B2 – Submersible Turbine-generator Unit For Ocean And Tidal Currents – Google Patents

Los Dos principales Tipos de Medicamentos para el Dolor.. Figure 28 depicts a perspective view of one embodiment of a housing assembly of the present invention. Figure 25 depicts an exploded perspective view of another submersible turbine-generator module according to yet another embodiment of the present invention. Referring now to Figures 4 and 5, there is shown a submersible turbine-generator unit 400 according to one embodiment of the present invention. Figure 34 depicts an end view of a center cut cross section of one embodiment of a housing assembly of the present invention. In fact, view shed issues have become a major obstacle for develop of most projects, regardless of their societal benefits.

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The industries which have provided these technological advances include the off-shore oil and gas, wind power generation, maritime, shipping and telecommunications. Submersible turbine-generator units according to the present invention utilize recent technological advances from several industries and incorporate them into an integrated power system. These technological advances include not only unique designs and equipment but also state of the art advanced materials, including composite materials. With worldwide awareness of the negative environmental impacts of fossil fuels on our global environment, growth in the use of renewable energy appears to be constrained only by the ability to produce and deliver it at an economic price. Moreover, the flow direction varies only 1.5 degrees from an otherwise steady northerly direction of flow. One of the greatest potential sources of ocean current energy in the world is the Florida Current as shown in Figure 2. The Florida Current is the portion of the Gulf Stream that runs in a northerly direction off the east coast of the United States from the Florida Keys to Cape Hatteras in North Carolina.

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Importantly, it always flows in a northerly direction, twenty-four hours a day, so it provides a continuous, reliable source of energy. In one embodiment, the blades 500 form a helical configuration, a modification of a delta turbine, which ensures that a portion of the blades always angles perpendicular to the fluid flow.

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Although the speed and exact location of the Florida Current can fluctuate from season to season and year to year, it is relatively stable, predictable and wide enough that the center portion is always within the current boundaries. Although power generated from ocean energy can be directly “plugged into” coastal load centers and remote communities, it is not restricted to these markets. Since ocean and tidal currents exist everywhere in the world and are either constantly flowing or extremely predictable, converting the energy in these currents to electricity could provide a predictable, reliable and, in some cases, base load supply of electricity to the electric power systems or remote sites in many parts of the world. As shown in Figure 3A, two potential tidal generation project sites may be located near the City of Anchorage. In addition to providing much needed electricity to the Anchorage area, where approximately one-half of the state’s population lives, tidal current generators can be located in tidal currents near to shore in remote, local “pockets” of demand.

Both projects could be easily interconnected with the local utility grid which serves the Anchorage area. The submersible power generation modules may generate electricity from both tidal currents and open ocean currents, and, additionally, may generate electricity via deployment in any other natural or manmade water flow, such as rivers, causeways, canals, and dams. In European Union countries, for example, a considerable premium over fossil fuel generation is currently being paid for “green” power. At 50 meters below the surface, for example, the water velocity distribution was found to be Gaussian. Flows are very consistent – in the range of 0.642 to 2.43 5 meters per second (1.25 to 4.73 knots) 99.7% of the time (within three standard deviations of the mean).

0.75 per kWH or more. This is enough electricity to power a substantial portion of the households near the southeast coast of the United States. Gripe dolor muscular . This bill also authorized funding of $632 million in fiscal year 2007, $734 million in fiscal year 2008 and $852 million in fiscal year 2009 for renewable energy research, development, demonstration and commercial application projects, including ocean energy projects. WO 2008/051455 PCT/US2007/022288 SUBMERSIBLE TURBINE-GENERATOR UNIT FOR OCEAN AND TIDAL CURRENTS RELATED APPLICATIONS The present application claims priority to U.S. The aerodynamic blades of the ADCF Turbine convert the energy in the ocean and tidal currents into mechanical energy that transfers through the turbine shafts to a permanent magnet generator. The generator converts the mechanical energy (i.e., RPM and torque) into electricity.

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Additionally, the maximum velocities of the Florida Current occur during the peak months of electricity usage during the summer which means the maximum output of the submersible turbine-generator modules of the present invention would occur during periods when the power is most needed. Figure 30 depicts a cross section of one embodiment of a housing assembly of the present invention. Figure 29 depicts a see-through perspective view of one embodiment of a housing assembly of the present invention. Figure 26a depicts a perspective view of a generator assembly of one embodiment of the present invention. Figure 23 depicts a front elevation of another submersible turbine-generator module according to yet another embodiment of the present invention. Ejercicios para el dolor lumbar ciatico . Such submersible turbine-generator units according to the present invention preferably utilize a highly efficient turbine, known as the advanced design cross-flow turbine (“ADCF Turbine”), which is a derivation of the Darrieus turbine. According to the invention, there is provided a submersible turbine-generator unit for generating electricity from ocean or tidal currents, comprising: a.