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Re: E-M:/ Interesting: vortex-induced vibrations for aquatic clean energy



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Enviro-Mich message from "Lowell Prag" <lprag@mail.msen.com>
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On Mon, December 1, 2008 12:59 pm, Chris Reader wrote:

... see below ...

Hello Chris,

The inventor, Michael M. Bernitsas, has an actual company:

Vortex Hydro Energy LLC
2512 Carpenter Road, Suite #101-C
Ann Arbor, MI 48104
Telephone: (734) 223-4223
Fax: (734) 944-4072

Home page:

http://www.vortexhydroenergy.com/

Technical papers on the details:

http://www.vortexhydroenergy.com/html/news.html

Regards,

Lowell Prag

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On Mon, December 1, 2008 12:59 pm, Chris Reader wrote:
A revolutionary device that can harness energy from slow-moving rivers and
ocean currents could provide enough power for the entire world, scientists
claim.

...

Systems could be sited on river beds or suspended in the ocean. The
scientists behind the technology, which has been developed in research
funded by the US government, say that generating power in this way would
potentially cost only around 3.5p per kilowatt hour, compared to about
4.5p
for wind energy and between 10p and 31p for solar power. They say the
technology would require up to 50 times less ocean acreage than wave power
generation.

The system, conceived by scientists at the University of Michigan, is
called
Vivace, or "vortex-induced vibrations for aquatic clean energy".

Michael Bernitsas, a professor of naval architecture at the university,
said
it was based on the changes in water speed that are caused when a current
flows past an obstruction. Eddies or vortices, formed in the water flow,
can
move objects up and down or left and right.

...

The engineers are now deploying a prototype device in the Detroit River,
which has a flow of less than two knots. Their work, funded by the US
Department of Energy and the US Office of Naval Research, is published in
the current issue of the quarterly Journal of Offshore Mechanics and
Arctic
Engineering.

http://www.telegraph.co.uk/earth/energy/renewableenergy/3535012/Ocean-currents-can-power-the-world-say-scientists.html




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