Sea waves as renewable resource in new energy converter design

Jun 22, 2012

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.

Researchers from the University of Beira Interior in Portugal have designed and simulated a new energy conversion device that addresses both these challenges (i.e., low speed and irregular movements).

Their proposed device consists of a floating body attached to a new type of 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. In a paper accepted to the American Institute of Physics' Journal of Renewable and Sustainable Energy, the authors claim the proposed generator has the advantages of high and robustness, as well as easy modeling and construction.

Explore further: US urged to drop India WTO case on solar

More information: "Design of a new linear generator for wave energy conversion based on analytical and numerical analysis", Journal of Renewable and Sustainable Energy.

add to favorites email to friend print save as pdf

Related Stories

New work on leading wave power

Dec 09, 2008

A technology that is adapted to the special conditions for wave energy places the wave energy technology from Uppsala on the absolute cutting edge in the world. In his dissertation, Rafael Waters presents the findings from ...

Waves of Power

May 17, 2005

New buoys convert the ocean's energy into electricity Whether witnessed as destructive waves, gently rolling swells or mesmerizing rhythms along the shoreline, the sea's energy is immense. In fact, experts esti ...

A traveling-wave engine to power deep space travel

Sep 17, 2004

A University of California scientist working at Los Alamos National Laboratory and researchers from Northrop Grumman Space Technology have developed a novel method for generating electrical power for deep-space travel us ...

World's biggest Wave Hub installed off UK coast

Sep 08, 2010

(PhysOrg.com) -- A wave energy generation test site called the "Wave Hub" is being set up off Cornwall’s northern coast. The site is the first offshore wave energy site in the UK, and will allow four wave ...

Running Hamsters Can Power Nano Devices (Video)

Feb 12, 2009

(PhysOrg.com) -- Among the vast number of untapped energy sources are finger taps, heartbeats, and even hamsters running on exercise wheels. In a recent study, researchers from Georgia Tech have shown that ...

Recommended for you

Switch on sunlight for a brighter future

2 hours ago

Imagine sitting in a windowless room yet having the feeling of the sun shining on your face. This unique experience is now possible thanks to the COELUX EU-funded project which recreates the physical and ...

US urged to drop India WTO case on solar

18 hours ago

Environmentalists Wednesday urged the United States to drop plans to haul India to the WTO to open its solar market, saying the action would hurt the fight against climate change.

Is nuclear power the only way to avoid geoengineering?

Apr 23, 2014

"I think one can argue that if we were to follow a strong nuclear energy pathway—as well as doing everything else that we can—then we can solve the climate problem without doing geoengineering." So says Tom Wigley, one ...

Finalists named in Bloomberg European city contest

Apr 23, 2014

Amsterdam wants to create an online game to get unemployed young people engaged in finding jobs across Europe. Schaerbeek, Belgium, envisions using geothermal mapping to give households personalized rundowns of steps to save ...

Bloomberg invests $5M in solar-powered lamp

Apr 22, 2014

Former New York Mayor Michael Bloomberg's foundation has announced a $5 million investment in an artsy-looking solar-powered lamp designed for use in off-grid populations in Africa.

User comments : 3

Adjust slider to filter visible comments by rank

Display comments: newest first

CapitalismPrevails
1 / 5 (1) Jun 22, 2012
http://www.youtub...tpg3i5V8

Looks more promising.
Vendicar_Decarian
3 / 5 (2) Jun 23, 2012
Water has a greater density than air, so why not put the turbine in the water rather than losing most of the energy at the water to air interface?
CapitalismPrevails
not rated yet Jun 23, 2012
VD, probably because placing the turbine increases the risk of of it being damaged in some way( e.g. rust).

More news stories

New breast cancer imaging method promising

The new PAMmography method for imaging breast cancer developed by the University of Twente's MIRA research institute and the Medisch Spectrum Twente hospital appears to be a promising new method that could ...

Research proves nanobubbles are superstable

The intense research interest in surface nanobubbles arises from their potential applications in microfluidics and the scientific challenge for controlling their fundamental physical properties. One of the ...

Using antineutrinos to monitor nuclear reactors

When monitoring nuclear reactors, the International Atomic Energy Agency has to rely on input given by the operators. In the future, antineutrino detectors may provide an additional option for monitoring. ...