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On Is A Super El Niño Coming That Will Shatter Extreme Weather And Global Temperature Records?

Max, the method I propose does not upwell cold water. It takes the surface heat to the depths the same way the air conditioning system in your car removes heat to the exterior. See recent post here. This can rein in global warming as has been demonstrated by the recent hiatus, which was brought about when strong trade winds moved heat to between 100 and 300 meters in the Eastern Pacific. OTEC would move the heat at least 3 times as deep and therefore would keep it there long enough for atmospheric CO2 levels to decline. This is a positive outcome we in Canada should be promoting but of course that is not the case.

March 31, 2014    View Comment    

On Global Warming: It Ought to Be Illegal

Jim, I tried to make this point in the post previous to this.

John A. “Skip” Laitner, a visiting fellow of the American Council for an Energy-Efficient Economy, says in his paper Linking Energy Efficiency to Economic Productivity: Recommendations for Improving the Robustness of the U.S. Economy, “it turns out that the U.S. economy converted only 14 percent of the total energy consumed in 2010.

For some reason it is exceedingly hard to put this point across.

OTEC converts a small fraction of the waste heat accumulating in the ocean to work and moves about 20 times more to the safety of the deep ocean.

March 30, 2014    View Comment    

On Global Warming: It Ought to Be Illegal

Keith, a lot of the cost, corrosion and environmental problems are addressed by a heat pipe design which reduces the piping size by one order of magnitude. Condensation takes place in deep cold water with such a system and thus the biofouling problem is mostly overcome. As the MIT paper shows movement of heat to the deep stalls global warming and would also stall sea level rise due to the fact the coefficient of expansion of sea water at 4C and 100 atmospheres is half that of the tropical surface water. 

Most estimates I have seen show plant life of 60 years, which is at least as good as nuclear.

I believe that the environmental and economic benefit of massive implementation more than compensate for the capital costs, which are about the same as nuclear and of course the fuel cost subsequently are free.

The correct way to account for energy is to include the externalities and give credit for the environmental benefits.

 

 

 

March 29, 2014    View Comment    

On Is A Super El Niño Coming That Will Shatter Extreme Weather And Global Temperature Records?

Upper-Ocean heat is moved to depths of as much as 1000 meters by ocean thermal energy conversion using a heat pipe or deep water condenser design. As the MIT article, How the ocean reins in global warming, points out, this would delay long-term global warming, even as it could produce as much energy as is currently derived from fossil fuels.

March 28, 2014    View Comment    

On Living in a Renewables Distortion Field

David, a recent MIT study shows "How the ocean reins in global warming". How it does this is replicated by producing energy with ocean thermal energy conversion with a heat pipe design. It seems to me a means of producing energy that reins in global warming would be something Shell would want to consider?

 
March 22, 2014    View Comment    

On Oil Limits and the Economy: One Story, Not Two

This is an excellent video Rick.

Gail speaks of diminishing returns, whereas climate change is, for the most part, the accumulation of excess heat in the oceans. This positive heat potential can be moved to the cold depths to produce electricity through a heat engine. As you described it in another post (pejoratively) by converting the ocean into a battery.

Although I am not an economist either, the few course I did take taught that with scarcity came increased costs, whereas prices came down with over production.

It seems to me turning the oceans into a battery solves Gails conundrum as well as the warming problem.

Regards.

March 22, 2014    View Comment    

On Flying Without Fossil Fuels: The Need For High Energy Density

Roger, Siemens has an article on electrolyzers here. They hope to be able to drop their cost by one order of magnitude to under €1,000 per kilowatt by 2018. These would be at 100 MW scale. 

Again OTEC is the largest 100% duty cycle renewable option and the bonus to producing hydrogen at a depth of 1000 meters is, it arrives at the surface pressurized to 100 atmospheres.

March 13, 2014    View Comment    

On Flying Without Fossil Fuels: The Need For High Energy Density

Roger, to avoid long supply lines the Navy should be producing fuel from within its own environment. It also has significant land based infrastructure that is at risk to sea level rise and storm surge, which are mitigated by OTEC. 

March 11, 2014    View Comment    

On Flying Without Fossil Fuels: The Need For High Energy Density

Robert, by chance did you take a look at the Tu-160. It is of similar scale to the 747.

Tu-160 at MAKS 2007.jpg

Tokyo to Washington in two hours - Rockwell X-30 - hydrogen power.

Jim

 

March 11, 2014    View Comment    

On Flying Without Fossil Fuels: The Need For High Energy Density

Robert, speaking at the World AirlinesForum on sustainable development in Cannes in 2007, Airbus director of sustainable development Rainer von Wrede said that there are no technology obstacles  -to the development of hydrogen-fuelled aircraft engines - but there are many hurdles, including the ability to produce hydrogen in sufficient quantities and in an environmentally friendly way. "I would say it would take around three decades to solve these problems," he said.

It is OTEC's potential to develop hydrogen in quantify, and in an envrionmentally friendly way, that makes me an advocate.

As to your concerns about the greenhouse effect of vapor, the European Union points out, "the residency time of water vapour in the upper atmosphere is 6 months, whereas carbon dioxide remains in place for around 100 years." 

In their paper, H2Aircraft - CRYOPLANE and the future of flight, they state, "Driven by the foreseeable exhaustion of petroleum reserves and tightening environmental controls, the EU-funded CRYOPLANE project has developed a conceptual basis for a new generation of aircraft, preparing the way for a future without fossil fuels and where hydrogen rules."

 

 

March 11, 2014    View Comment    

On Flying Without Fossil Fuels: The Need For High Energy Density

Hydrogen was used in one of Germany’s first aircraft turbine engines the Heinkel-Strahltriebwerk 1 (HeS 1). The Russians proposed a liquid hydrogen version of the Tu-160V bomber and the US Navy broke its own endurance record by keeping a fuel cell powered drone in the air over 48 hours by using a cryogenic tank for the liquefied hydrogen fuel.  It would seem we can fly quite well without fossil fuels.

March 11, 2014    View Comment