Meta-Blog

SEARCH QandO

Email:
Jon Henke
Bruce "McQ" McQuain
Dale Franks
Bryan Pick
Billy Hollis
Lance Paddock
MichaelW

BLOGROLL QandO

 
 
Recent Posts
The Ayers Resurrection Tour
Special Friends Get Special Breaks
One Hour
The Hope and Change Express - stalled in the slow lane
Michael Steele New RNC Chairman
Things that make you go "hmmmm"...
Oh yeah, that "rule of law" thing ...
Putting Dollar Signs in Front Of The AGW Hoax
Moving toward a 60 vote majority?
Do As I Say ....
 
 
QandO Newsroom

Newsroom Home Page

US News

US National News
Politics
Business
Science
Technology
Health
Entertainment
Sports
Opinion/Editorial

International News

Top World New
Iraq News
Mideast Conflict

Blogging

Blogpulse Daily Highlights
Daypop Top 40 Links

Regional

Regional News

Publications

News Publications

 
The wave of the future?
Posted by: McQ on Sunday, November 30, 2008

No pun intended.

A few weeks ago I mentioned energy generated by tidal action as a possible solution to many of our future energy requirements. Clean and reliable, the only drawback seemed to be that the existing technology required a fairly active tidal process (moving at 5 to 6 knots) to turn the generators on the sea floor. In fact, it limited us to about 12 sites around the US.

However, a "revolutionary" new device shows much more promise than those:
The technology can generate electricity in water flowing at a rate of less than one knot - about one mile an hour - meaning it could operate on most waterways and sea beds around the globe.
Anywhere there's flowing water. Now that sounds interesting.
The new device, which has been inspired by the way fish swim, consists of a system of cylinders positioned horizontal to the water flow and attached to springs.

As water flows past, the cylinder creates vortices, which push and pull the cylinder up and down. The mechanical energy in the vibrations is then converted into electricity.

Cylinders arranged over a cubic metre of the sea or river bed in a flow of three knots can produce 51 watts. This is more efficient than similar-sized turbines or wave generators, and the amount of power produced can increase sharply if the flow is faster or if more cylinders are added.
Increasing the size of the field you get:
A "field" of cylinders built on the sea bed over a 1km by 1.5km area, and the height of a two-storey house, with a flow of just three knots, could generate enough power for around 100,000 homes.
That shows a lot of potential. And there seems to be no down-side here:
Because the parts only oscillate slowly, the technology is likely to be less harmful to aquatic wildlife than dams or water turbines. And as the installations can be positioned far below the surface of the sea, there would be less interference with shipping, recreational boat users, fishing and tourism.
First test site? Detroit River, where the flow is less than 2 knots.

Fingers crossed.
 
TrackBacks
Return to Main Blog Page
 
 

Previous Comments to this Post 

Comments
This is a non-starter.

It damages [insert obscure environmental excuse to litigate this to oblivion here]
 
Written By: shark
URL: http://
note: Tidal energy comes ultimately from the Moon’s orbit (mostly).

I can see it now: Tidal power is slowly dragging the Moon from it’s orbit in to the Earth, while slowing the Earth’s rotation to a period that will decimate the environment that has evolved for a 24 hour day. The result will be a cataclysm of unimaginable proportions. I blame Bush!

 
Written By: Jonathan K Armstrong
URL: http://
The Detroit River?
Won’t the bodies get tangled in the works?

 
Written By: Bithead
URL: http://bitsblog.florack.us
There’s no such thing as free energy. What will be the impact of taking energy from the tides? What ecosystems will we disrupt? What natural erosion will we impact?
 
Written By: anonymous
URL: http://
You’re right anonymous. We all ought to just commit suicide right now to stop disrupting ecosystems.
 
Written By: Billy Hollis
URL: http://qando.net
That’s the beauty of nuclear power. You not only don’t damage so many ecosystems, you actually CREATE biodiversity through the production of mutant 3-eyed fish, superhumans bitten by radioactive spiders, etc.
 
Written By: harun
URL: http://
Isn’t that how we get liberals, harun?

 
Written By: Bithead
URL: http://bitsblog.florack.us
JAcJYl eirytqmsohyb, [url=http://clryojzixrsq.com/]clryojzixrsq[/url], [link=http://ynhlnbygyfdn.com/]ynhlnbygyfdn[/link], http://oaqcvesubiji.com/
 
Written By: 7
URL: http://oifhwbqomqcd.com/
W5rdhR lpnviyuywgzv, [url=http://hwirchswirwb.com/]hwirchswirwb[/url], [link=http://byrwmgzmpdvy.com/]byrwmgzmpdvy[/link], http://gytqhjiflajp.com/
 
Written By: 7
URL: http://ucuqmeqldopa.com/
ULGYyv vzjwpanainxr, [url=http://nwvrxicdfkvr.com/]nwvrxicdfkvr[/url], [link=http://bkahdmwwbbhd.com/]bkahdmwwbbhd[/link], http://hotsaxssqahc.com/
 
Written By: 7
URL: http://lmylekgajkkn.com/
9r9W8Z dagorbbrbllt, [url=http://niwihuqstmrm.com/]niwihuqstmrm[/url], [link=http://esceewunlvzy.com/]esceewunlvzy[/link], http://nntsvvaeqpbi.com/
 
Written By: 7
URL: http://tkuuwwjzxfno.com/
W2taCY ivlorregrpnl, [url=http://rkfziqnnkdbt.com/]rkfziqnnkdbt[/url], [link=http://xwtqklmaggbf.com/]xwtqklmaggbf[/link], http://aqrtibkkaywr.com/
 
Written By: 7
URL: http://rfgfsiyufhsk.com/

 
Add Your Comment
  NOTICE: While we don't wish to censor your thoughts, we do blacklist certain terms of profanity or obscenity. This is not to muzzle you, but to ensure that the blog remains work-safe for our readers. If you wish to use profanity, simply insert asterisks (*) where the vowels usually go. Your meaning will still be clear, but our readers will be able to view the blog without worrying that content monitoring will get them in trouble when reading it.
Comments for this entry are closed.
Name:
Email:
URL:
HTML Tools:
Bold Italic Blockquote Hyperlink
Comment:
   
 
Vicious Capitalism

Divider

Buy Dale's Book!
Slackernomics by Dale Franks

Divider

Divider