Share on Google Plus Share on Twitter Share on Facebook 1 Share on LinkedIn Share on PInterest Share on Fark! Share on Reddit 2 Share on StumbleUpon Tell A Friend 5 (8 Shares)  
Printer Friendly Page Save As Favorite View Favorites View Stats   6 comments

Exclusive to OpEdNews:
OpEdNews Op Eds

American Energy Policy V -- Ocean Thermal Energy Conversion

By (about the author)     Permalink       (Page 2 of 2 pages)
Related Topic(s): ; ; ; ; ; ; ; ; ; ; (more...) ; ; ; , Add Tags  (less...) Add to My Group(s)

Must Read 1   Supported 1   Interesting 1  
View Ratings | Rate It

opednews.com

Become a Fan
  (10 fans)

With a slightly different design, using an ammonia heat pipe instead of a cold water pipe, proposed by Jim Baird and Dominic Michaelis (British Patent No. GB 2395754), no water from the bottom is released into the upper strata of the ocean, trapping all the CO2 deep beneath the thermocline. Little pumping energy is used to circulate the ocean water, simply enough to pump warm surface water to flow over the evaporator end of the heat pipe. If the condensing end of the heat pipe is exposed to a thousand feet or more of near freezing temperatures below the thermocline, no cold water pumping is required. The parasitic losses are cut in half. The costs for the cold water pipe are eliminated, along with the cold water return pipe and condenser pumps, the cleaning system for the condenser, and the overall plant efficiency approaches 85% of Carnot vs. about 70% with a cold water pipe.
The parasitic losses could be reduced as much as 50% and the complexity, mass (and cost) of the system reduced by at least 30%. The vast reduction in operating costs and environmental impacts would be worth investigation alone.


Also, the use of Solid State Ammonia Synthesis ( SSAS, Holbrook , et.al.) will reduce the energy required to produce ammonia from roughly 12000 to 7000 kWh of electricity per MT of NH3 product. The use of Seawater Reverse Osmosis (SWRO) would be cheaper and more efficient than evaporation for production of drinking and process water. The addition of a fourth energy product, pharmaceutical and/or industrial grade oxygen, may greatly enhance system economics. If pure oxygen is used to burn or oxidize toxic and solid wastes from our cities, the effluent gasses are much easier to clean up and isolate. Further, if the oxygen is used in flash smelting or oxidation of sulfurous compounds, the resulting efficiency for the recovery of copper, platinum series elements, rare earth elements, and radioactive ores can be greatly enhanced. We found this to be the case in copper smelting in the '80's. The notion that OTEC could be used to clean up the waste dumps of the world would attract much more interest from multinational corporations and governments.

Next Page  1  |  2

 

Take action -- click here to contact your local newspaper or congress people:
Bring OTEC to the Front of the Queue

Click here to see the most recent messages sent to congressional reps and local newspapers

Designed first all-solar home for Ryland Homes in 1974. At MITRE, led a group of 35 of the best minds in the world (including Dr. Edward Teller, among others) who performed detailed engineering, scientific, socio-economic, and political analyses of (more...)
 

Share on Google Plus Submit to Twitter Add this Page to Facebook! Share on LinkedIn Pin It! Add this Page to Fark! Submit to Reddit Submit to Stumble Upon

Go To Commenting
The views expressed in this article are the sole responsibility of the author and do not necessarily reflect those of this website or its editors.

Follow Me on Twitter

Contact Author Contact Editor View Authors' Articles

Most Popular Articles by this Author:     (View All Most Popular Articles by this Author)

American Energy Policy V -- Ocean Thermal Energy Conversion

The Link Between Global Warming and Mega-Quakes - Reprise

American Energy Policy Part II -- Ammonia

The Link Between Climate Change and Geological Disruption: Can Global Warming Be A Cause of Earthquakes?

Middle Class Ordeal

American Energy Policy IV: The Price of Transition

Comments

The time limit for entering new comments on this article has expired.

This limit can be removed. Our paid membership program is designed to give you many benefits, such as removing this time limit. To learn more, please click here.

Comments: Expand   Shrink   Hide  
3 people are discussing this page, with 6 comments
To view all comments:
Expand Comments
(Or you can set your preferences to show all comments, always)

It would be good for us to lead again, like we did... by Paul from Potomac on Wednesday, Dec 15, 2010 at 8:17:01 AM
The polluter pays principle requires that the part... by Jim Baird on Wednesday, Dec 15, 2010 at 12:38:06 PM
Jim,Brilliant idea to bring on the insurance compa... by Paul from Potomac on Wednesday, Dec 15, 2010 at 1:08:33 PM
Paul there is no doubt lives should be the primary... by Jim Baird on Wednesday, Dec 15, 2010 at 1:49:40 PM
So please don't think i troll your articles ;) I a... by steve windisch on Wednesday, Dec 15, 2010 at 1:30:16 PM
Steve,Passive solar, conservation practices and so... by Paul from Potomac on Wednesday, Dec 15, 2010 at 2:27:50 PM