| 摘要 |
Novelty: Turbine construction for the exploitation of the tidal water current of Evripos and rivers. Constitution: A tidal turbine composed of a shaft bearing adhered blades (propeller); the upper half section of the turbine is enclosed by a semi-cylindrical dome. The shaft is vertical to the water current direction and parallel to the water surface. The turbine is enclosed by parallel walls theends of which -when extended- form an obtuse angle. The whole arrangement is positioned under the water surface. The shaft's extremity which is the most proximal to the land and seated on the wall extends towards the land and continues its ground or subground course until reaching the generator for setting the shaft thereof into rotation. Thus, the encased water enters a large passage and gets out from a narrow one where the pairs of turbines increasing the water current velocity are installed. In this way, the torque exerted by water pressure on the blades and, consequently, the torque of the rotary shaft of the generator's rotor is multiplied. In the event of narrow passages or rivers, the extension of the two ends of the shaft towards respective generators is feasible. Advantages: Low cost, high efficiency, easy installation, unhindered navigation, minimal environmental consequences and many adequate places for the installation and operation of the invented tidal power generationsystem. |
