Marine Current Turbine (MCT) is a bladed hydrodynamic turbine designed to harvest renewable energy of ocean currents, including tidal currents. The turbine was developed through computational fluid dynamics, a technique used to solve problems that involve fluid flows.
MCT comprises water flow concentrator, bladed rotor, frame, supporting upper and lower pontoons at the opposite sides of the frame, submersible annular generator (SAG).
MCT is installed by flexible mooring to the seabed and is suspended to a required depth by controlled buoyancy of supporting pontoons.
MCT is a reliable, inexpensive and efficient off-shore system, that can be installed on different depths. The system contains no expensive or complex parts, lubricants, high precision hydraulics or air pumps, everything that makes other systems more expensive, vulnerable to destructive forces of nature and potentially hazardous.
Because of its modular, easy-to-assemble design each unit can be cost effectively transported and installed anywhere in the world. Parts are shipped in regular 20' containers and assembled at the installation site.
Installation process is well-designed and easy to perform. Frame with a turbine or several turbines, upper and lower pontoons filled with air is tugged by practically any available vessel, including small boats, to the mooring site, where the frame is connected to mooring lines, the generator is connected to a subsea cable and the lower pontoons are then filled with water in order to position the frame with the turbine vertically, perpendicular to water flow. Upper pontoons are then filled with water to descent the entire system to a desired depth.
One of the main advantages of MCT is its remarkably high survivability level. The system's energy conversion and power generation parts are completely submerged. Supporting upper pontoons can be filled with water in a matter of minutes in case of upcoming storm in order to submerge the entire system to such depth where the water is not affected by the surface waves. Compressed air is used to restore upper pontoons' buoyancy after the storm.
MCT substantially outperforms the competing technologies with respect to efficiency, survivability, cost and maintenance.