Tuesday 21 October, 2014

New device to produce energy from sea waves

Published On: Sat, Jun 23rd, 2012 | Physics | By BioNews

Researchers from the University of Beira Interior in Portugal have designed and simulated a new energy conversion device that can convert sea wave motion into electrical energy.

Sea waves are a renewable and inexhaustible resource found in abundance across the planet.

But efficiently converting sea wave motion into electrical energy has been challenging, in part due to the difficulty of compensating for the relatively low speeds and irregular movements of ocean waves.

University of Beira Interior researchers’ new energy converter addresses both these challenges (i.e., low speed and irregular movements).

Their proposed device consists of a floating body attached to a new type soft conversion generator, called an electric linear planar switched reluctance generator (LSRG), which can convert wave energy directly from the wave-induced, up-and-down motion of the device’s moving part.

The researchers claimed the proposed generator has the advantages of high power density and robustness, as well as easy modeling and construction.

The American Institute of Physics’ Journal of Renewable and Sustainable Energy has accepted a paper describing their study.

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