HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/2  >  >>
Elizabeth M
User Rank
Blogger
Re: Concrete- Composite Floating Platform
Elizabeth M   9/3/2013 5:17:39 AM
NO RATINGS
Thanks for that information, Jim S. I wasn't exactly sure how the floating system works but that makes a lot of sense. I always thought the idea of a "floating" structure was a bit of a misnomer and there had to be some anchorage in there somewhere! So it is true.

akwaman
User Rank
Gold
Re: Offshore Turbines
akwaman   8/30/2013 3:46:35 PM
NO RATINGS
@a.saji: It is obvious to most, that the maintenance costs of offshore devices like this will be higher than the terrestrial based versions.  Of course, they may be offset by the fact that no costs at all will be incurred by land rental or purchase.  I personally would wonder if wind turbines in the open ocean would be better served using Darious rotors, for reduced costs of maintenance and safety.  Terrestrial based turbines with the generators at the top are maintained by people climbing them and doing the maintenance.  This might be easier with the Darius rotor in the open ocean, because the generator and gears are at the bottom.  This would also lower thecenter of gravity, making it more stable on a floating platform.

a.saji
User Rank
Silver
Re: Offshore Turbines
a.saji   8/29/2013 11:58:01 PM
NO RATINGS
@apresher: In anywhere maintenance cost is considered as high most of the time.         

apresher
User Rank
Blogger
Offshore Turbines
apresher   8/29/2013 5:51:07 PM
NO RATINGS
From past articles I've done, my understanding from suppliers is that offshore turbines (especially in North America) isn't gaining ground like it is in Europe and other places where available land is a factor. Maintenance costs are high for offshore, for example.

Watashi
User Rank
Platinum
Re: Concrete- Composite Floating Platform
Watashi   8/29/2013 3:39:11 PM
NO RATINGS
I can see the platform surviving a huricane, but not so sure about the composites.  If they build them like the oil rigs, maybe they will only need to replace the blades after big (cat 2+) storms. 

Ann R. Thryft
User Rank
Blogger
Re: Offshore winds have great potential
Ann R. Thryft   8/29/2013 3:00:17 PM
NO RATINGS
Thanks, Elizabeth, for this story. The concrete-composite combo makes a lot of sense. We've covered the use of corrosion-free composites used in pontoons and docks, and combining it with concrete clearly gives stability and weight where needed, as well as lower cost.

Jim S
User Rank
Gold
Re: Concrete- Composite Floating Platform
Jim S   8/29/2013 11:52:54 AM
NO RATINGS
They are all anchored. The Floating type are tethered to the bottom through cables and anchors arranged around it. The others are tall enough that they are towed out floating and then sank so that the bottom is firmly on the sea bed. There have been some tv programs on how it was done.

Jim S
User Rank
Gold
Re: Concrete- Composite Floating Platform
Jim S   8/29/2013 11:52:54 AM
NO RATINGS
They are all anchored. The Floating type are tethered to the bottom through cables and anchors arranged around it. The others are tall enough that they are towed out floating and then sank so that the bottom is firmly on the sea bed. There have been some tv programs on how it was done.

Elizabeth M
User Rank
Blogger
Re: Concrete- Composite Floating Platform
Elizabeth M   8/29/2013 11:07:30 AM
NO RATINGS
Sounds like those platforms would be a good example to those deploying turbines offshore. I think the floating idea is a good one but anchorage may be a better option, especially to handle severe storms. I suppose it wil be a trial and error situation as some of these early platforms in the U.S. are deployed to see what works.

Elizabeth M
User Rank
Blogger
Re: 1:8th scale?
Elizabeth M   8/29/2013 11:02:50 AM
NO RATINGS
Hi, Capt. Ron, yes you read correctly. In the story link I posted in my previous comment it says the proposed turbines are taller than the Washington Monument. I suppose they will be built solidly enough to withstand the perfect storm, but I guess it would take those type of conditions to find out what happens.

Page 1/2  >  >>


Partner Zone
Latest Analysis
At Medical Design & Manufacturing Midwest, Joe Wascow told Design News how Optimal Design prototyped a machine that captures the wing-beat of a duck.
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service