摘要:
The object of the invention is a method for installing and servicing an apparatus module recovering the kinetic energy of water; and the apparatus module itself. The apparatus module (1) with wave energy recovering units (3) is descended on the sea bottom and is kept steady at the sea bottom by the help of its own mass and the mass of the water filled into a plurality of soft and hard compartments (2a, 2d) and valve compartments (2c) in the body (2) of the apparatus module. Correspondingly the apparatus module (1) is lifted into the surface of the water and made floating by the help of air that is blown to the plurality of soft and hard compartments (2a, 2d) and the valve compartments (2c) in order to replace the water.
摘要:
Apparatus embodying the invention include a damping plate attached to the submerged end of a spar-like element floating in a body of water. The spar like element tends to move up and down in a vertical direction in response to passing waves. The damping plate has a pair of oppositely facing surfaces extending transversely to the vertical direction of the movement of the spar-like element and vertical structures (“lips”) mounted on the oppositely facing surfaces for increasing the effective mass of water pushed during movement of the damping plate through the water. Damping plates with lips, as per the invention, may be used in wave energy converters to control the relative motion between the spar-like element and a float to increase the energy produced.
摘要:
An electrical generation system based on tidal flow includes a reservoir and a fluid inlet tube extending between a tidal source and the reservoir. The inlet tube has at least one inlet turbine generator disposed therein. The fluid inlet tube extends along a first level. A fluid outlet tube extends between the reservoir and the tidal source. The fluid outlet tube has at least one outlet turbine generator disposed therein. The fluid outlet tube extends along a second level vertically lower than the first level. During high tide at the tidal source, tidal fluid flows from the tidal source, into the fluid inlet tube, past the at least one inlet turbine generator, and into the reservoir and during a low tide at the tidal source, the tidal fluid flows from the reservoir, into the fluid outlet tube, past the at least one outlet turbine generator, and to the tidal source.
摘要:
There are a large number of sites in the world's oceans and rivers that can provide a significant, viable, and cost effective source of renewable energy. Many are strategically located close to populated areas where these sites can be used to harness energy using ecologically benign hydrodynamic technology. A hydrodynamic array comprises multiple hydrodynamic elements for producing electricity by the motion of ocean tides or river currents and forces acting on the hydrodynamic array, which is immersed in ocean tides or river currents and which is in motion relative to the ocean tides or river currents.
摘要:
An arrangement for recovering wave energy. The arrangement comprises: a flotation piece (1) arrangeable to float in water, a first and a second transmission wheel (2a, 2b) arranged in the flotation piece (1) rotatably and spaced apart from one another, a pull-transmitting flexible machine part (3) arranged into power-transmitting contact with the first and the second transmission wheel (2a, 2b), the flexible machine part (3) at its both ends extending outside the flotation piece (1), a counterweight (4) arranged at a first end of the flexible machine part (3), anchoring means (6) arranged at a second end (7) of the flexible machine part, at least one generator (8) arranged in the flotation piece (1), and means for converting motion of both the first and the second transmission wheels (2a, 2b) into motion rotating the at least one generator (8).
摘要:
Dams are a useful source of energy. An embodiment of a dam according to the present invention includes precast segments configured to be coupled together to form a dam optionally used to generate energy. Another embodiment includes encasing an existing dam structure using interconnected precast segments. A further embodiment includes encasing a main energy generation component using interconnected precast segments formed from a composite material including electrically conducting fibers, an electrical circuit configured to measure and report the electrical resistance using a transmitter or transceiver to a dam stress/strain monitoring server. The electrical circuit may be powered directly or indirectly by available power supplied by the main energy generation component.
摘要:
The present invention ''Hydraulic systems for accumulating/releasing renewable energy'', concerns the storage of energy produced by harvesters that are not continuously active. These systems have been designed for countries in dry areas of the planet. The energy is stored by pumping water up from a low reservoir to a high reservoir during off-peak hours. The energy is released during peak hours, by passing the water through turbines of a hydroelectric system to be attached to hydraulic facilities not initially designed for this purpose. These systems are adapted to the natural local conditions in a novel manner, i.e.: 1. Transfers are extended to all kinds of drinkable fresh water reserves, including other volumes of non-drinkable (salt or brackish) but biologically healthy water, without it being possible for the different kinds of water to mix with each other. 2. Optimisation by simplification, standardisation, and updating of technologies. 3. A novel field in Hydrology.
摘要:
The invention relates to a construction for large-scale and centralized extraction, storing and subsequent release at the desired moment of electrical energy in the order of magnitude of at least 1000 Mwh. The construction comprises a substantially water-retaining basin with water-retaining bottom and side wall, which basin closes off an inner water mass from an outer water mass subject to tides, such as the sea. The construction is further provided with pump means for pumping inner water to the outer water mass, and with electrical energy release means which convert a water flow resulting from a difference in level between the inner and outer water masses to electrical energy. The side wall of the construction comprises a peripherally closed dike body which is provided with a substantially water-retaining, peripherally closed screen extending to a position below the basin bottom, and with water removing means located within the periphery of the substantially water-retaining screen.