Abstract:
A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables.
Abstract:
Provided is a wave power generation apparatus. The wave power generation apparatus includes an upper structure rolled by a wave, a lower structure disposed under a water plane to rotatably support the upper structure, a generation part disposed on one of the upper and lower structures to convert kinetic energy generated during rotation of the upper structure into electrical energy, and a gravity center movement part disposed on the upper structure, the gravity center movement part moving a gravity center of the upper structure to adjust a rolling period of the upper structure to a wave period.
Abstract:
A wave power plant is configured to convert energy from a wave motion in a fluid, particularly sea water, into a rotation or rotational energy. The particles of the fluid describe a circulating orbital flow beneath the wave surface, and the kinetic energy of which is converted, at least partially, into rotational energy of one or several crankshafts. At least one resistance element and at least one buoyancy element are arranged on each crankshaft so that various coupling elements are combined.
Abstract:
A completely submersed means of extracting energy from a tidal flow is particularly adapted to pump water to be stored and used around tidal change periods or to stabilize the output of offshore windmills. It can be retrieved and brought to the surface for maintenance and also repositioned on the sea bed, by remote control. Operation of its reaction means is automatically limited to prescribed water depths.
Abstract:
The invention relates to a mooring device that is suitable for use in water. The mooring device includes a pile configured to be embedded in a floor supporting the body of water, at least one arm configured to engage at least one entity, a joint configured to couple the pile and the at least one arm and permit rotation of the at least one arm relative to the pile, and joint locking means configured to lock the joint. The invention may further relate to a method of mounting the mooring device in water, a mooring system including multiple mooring devices and a system including the mooring devices.
Abstract:
Disclosed herein is a device (10) for capturing energy from ocean waves. The device (10) comprises a base (12) adapted for stationary mounting relative to a fluid flow generated by the ocean waves. A drive member (14) is movably connected relative to the base (12) and adapted to be driven in oscillatory rotational motion relative to the base (12). An array of paddles (14c) extend from the drive member (14), such that forces applied to the paddles by the ocean waves drive the drive member in oscillatory rotational motion relative to the base (12), A plurality of removable modular energy transfer mechanisms (20) are associated with the drive member (14) and adapted to be driven by the oscillation of the drive member.
Abstract:
Portable power generating devices are provided for converting potential energy from flowing water, water current, blowing air or air current to mechanical and/or electrical energy. The potential energy is converted to a rotational movement, and the rotational energy is communicated to power conversion units for conversion, wherein the rotational movement is converted to mechanical, electrical or some other useable or useful energy.
Abstract:
Disclosed herein is a device (10) for capturing energy from ocean waves. The device (10) comprises a base (12) adapted for stationary mounting relative to a fluid flow generated by the ocean waves. A drive member (14) is movably connected relative to the base (12) and adapted to be driven in oscillatory rotational motion relative to the base (12). An array of paddles (14c) extend from the drive member (14), such that forces applied to the paddles by the ocean waves drive the drive member in oscillatory rotational motion relative to the base (12), A plurality of removable modular energy transfer mechanisms (20) are associated with the drive member (14) and adapted to be driven by the oscillation of the drive member.
Abstract:
A drive assembly for providing a driving force to generate electricity. The assembly includes: a first track declined in a first direction through a first declination; a second track having a first portion which extends in a second direction in a substantially horizontal configuration, and a second portion which is arranged to pivot with respect to the first track between a first position in which the second portion is substantially coincident with the first portion and a second position in which the second portion is declined in the second direction through a second declination; a drive shaft which is coupled to first and second vehicles, the drive shaft being arranged to rotate in dependence of the travel of the first and second vehicles along the respective tracks. The first vehicle is arranged to travel along the first track between a first drive location and a first idle location to drive the shaft in a first direction and to cause the second vehicle to travel along the first portion of the second track between a second idle location and a second drive location; and, the second vehicle is arranged to travel along the second portion from the second drive location to the second idle location to cause the drive shaft to rotate in a second direction and to cause the first vehicle to travel from the first idle location to the first drive location.