Wave power

About: Wave power is a research topic. Over the lifetime, 2671 publications have been published within this topic receiving 41439 citations. The topic is also known as: wind wave energy & sea wave energy.

Investigation on the oscillating buoy wave power device

Abstract: An oscillating buoy wave power device (OD) is a device extracting wave power by an oscillating buoy Being excited by waves, the buoy heaves up and down to convert wave energy into electricity by means of a mechanical or hydraulic device Compared with an Oscillating Water Column (OWC) wave power device, the OD has the same capture width ratio as the OWC does, but much higher secondary conversion efficiency Moreover, the chamber of the OWC, which is the most expensive and difficult part to be built, is not necessary for the OD, so it is easier to construct an OD In this paper, a numerical calculation is conducted for an optimal design of the OD firstly, then a model of the device is built and, a model test is carried out in a wave tank The results show that the total efficiency of the OD is much higher than that of the OWC and that the OD is a promising wave power device

Wave power resonance generator

Abstract: A surge of sea water through a guide channel is used to force a column of sea water up inside a chamber in a similar way to a piston in a cylinder. The column of water drives air through a turbine into a second sealed chamber where the air becomes compressed. This compressed air returns through the turbine as the water column falls. The system is tuned (e.g. by varying the capacity of the sealed chamber or the air pressure therein) to resonate with the frequency of sea surges to obtain maximum power conversion efficiency. The turbine may drive an electric generator or an hydraulic pump and the device may be built into a cliff face or installed on a ship. It may be associated with a desalinating plant.