A new generation of tidal turbine to capture energy

[jean.caissepas]

Even more electrical production thanks to the sea ...

A new system for producing electricity from ocean currents has just been developed by the start-up EEL ENERGY in the IFREMER basin: the tidal turbine with an undulating membrane.

This technology, based on bio-mimicry, makes it possible to produce electricity with current speeds of less than one meter per second. "The corrugating membrane tidal turbine thus offers 1000 times more potential locations than with turbines, on currents ranging from 1 to 3 meters / second", underlined Franck Sylvain, financial director of EEL ENERGY.

Link : http://www.enerzine.com/7/18794+une-nouvelle-generation-dhydrolienne-pour-capter-lenergie-des-marees+.html

Good reading...

[simplino]

Anything that moves in a stream of water or air can give energy:
http://www.futura-sciences.com/magazine ... eau-17448/
like an oscillating leaf (which can have a good return like for a fish or a dolphin), a flag in the wind, an object shaken by the waves, but the difficulty is to convert this movement into electricity with a good return:

see the thesis on the strong magnet converter with all the secrets and real problems:
www.theses.ulaval.ca/2011/27772/27772.pdf

The propellers of current wind turbines are elongated very fine to withstand storms while having good performance in winds or medium water currents.

Other solutions with large surfaces have problems with storms, and therefore may be fragile, as often broken in wave converters!

A much simpler piezoelectric converter, of the gas lighter type, has a good yield only in ultrasound and therefore hardly usable!

We could use the movement to mechanically pump water or pressurized air into a large tank and thus store its energy to use later, but the performance is also to be optimized?