Sign up | Login with →

Comments by Jim Baird Subscribe

On Tesla Trumps Toyota: Why Hydrogen Cars Can't Compete With Pure Electric Cars

And yet Mercedes Benz, Toyota, BMW, Hyundai ect. are developing hydrogen fuel cell cars. These guys aren't noted for their technological naivety.

August 10, 2014    View Comment    

On Water, Water Everywhere, Nor Any Drop To Drink

Alistair I'm not clear on how you get 90% of the heat has gone into melting ice. The following diagram is based on James Hansen et. al. paper  “Earth’s Energy Imbalance: Confirmation and Implications, published in Science June 2005.

August 10, 2014    View Comment    

On Tesla Trumps Toyota: Why Hydrogen Cars Can't Compete With Pure Electric Cars

Joe, the making of hydrogen by ocean thermal energy conversion is a necessity to bring the energy to market. The work of Greg Rau's group at Lawrence Livermore Laboratories has demonstrated this process can concurrently sequester CO2.  You do not get this benefit from any means of producing electricity to power your EV. 

August 9, 2014    View Comment    

On Why Does Politics Keep Getting in the Way of Pricing Carbon? - Part 1

 

Jesse if U.S. households are willing to pay $80-200 per year to combat climate change, I suspect they would more eager to invest that amount in technologies that accomplish the desired end, yet offer the chance of a return on investment.  
July 21, 2014    View Comment    

On Carbon Sequestering Energy Production

Many thanks for the suggestion and vote of confidence Roy. I will certainly have a look at the opportunity. As to the suggestions about electrolysis I will let either Greg or Roger respond as they have far more expertise on that front than do I.

July 13, 2014    View Comment    

On Carbon Sequestering Energy Production

EP this dumping caused a huge backlash around here a year ago. In the same vain however this YouTube is essentially a synopsis of a presentation I made to the University of British Columbia Fisheries Department a year ago. A lot of people think the real problem with phytoplankton is thermal stratification.

 

July 11, 2014    View Comment    

On Carbon Sequestering Energy Production

According to a 2010 Scientific American article, What Is the Right Price for Carbon? $21/ton is too low but I take your point. There are a lot of wins for one technology and hopefully somewhere along the line the money guys will get it.

 
July 11, 2014    View Comment    

On Carbon Sequestering Energy Production

Count me in.

July 11, 2014    View Comment    

On Carbon Sequestering Energy Production

Roger, as I understand it the pH of sea water ranges between 7.5 and 8.4. The higher figure would be in the range where sodium bicarbonate would form according to the graphic. I am open however to the best way to accomplish the desired end. It seems to me the opportunity is presenting itself to solve the climate/energy problem.

July 10, 2014    View Comment    

On Carbon Sequestering Energy Production

Germany produced 35 million tons of chlorine by the chlorakali process in 1987, so there is a market but I agree it would be preferable to neutralize the analyte solution. The bottom line is that it can be done and OTEC is the opportune energy source for doing it.

July 10, 2014    View Comment    

On Carbon Sequestering Energy Production

Thanks for the clarification on both counts Roger. One of the problems with a deep water condenser system is the bouyancy of the large structures below the surface. Contiuous additions of leaching crushed rock might serve both purposes or the injection would work. I believe the economics of OTEC work with or without this adjunct but putting a price on carbon would make this approach economic as well.

July 10, 2014    View Comment    

On Carbon Sequestering Energy Production

I had a similar thought when I first read the Lawrence Livermore article. This didn't however appear to be the outcome of their lab scale demonstration.  The Arrhenius definition of an acid is a substance that, when added to water, increases the concentration of H+ ions. It seems to me that almost by definition the removal of H+ ions from water produces a base. Also ocean acidity appears to be a matter of where it occurs. The Climateprogress piece Ocean Acidification, Wildfires Are Taking Their Toll On The Pacific Northwest points out that acidification only became a problem when CO2 levels of 900 to 1,000 parts per million - almost triple normal levels - were upwelled into theeuphotic zone. With OTEC and a deep water condenser you could vent most of the chlorine at a depths of about 1000 meters. These waters would be very slow to mix back to the surface. You would still convert the CO2 but negate the acidity problem. Another alternative is you can produce other products with some of the chlorine. Some of its uses are outline here but it is probably not something you want to see at the surface.

July 10, 2014    View Comment