November 24, 2007

Hydrogen Production Breakthrough



One of the Brickmuppets' crack team of science babes runs the numbers on hydrogen and points us to this recent story about a breakthrough in bacterial hydrogen generation.

The results came as a result of experiments with the sort of microbial fuel cell described here. This design produces electricity in small amounts but its big payoff was in hydrogen, 288 percent the energy in hydrogen that was put in.
This is not quite as impressive as it sounds. For example, if one replaced all the cars with H2 it would require the generation of just over 1/3rd the energy required by all cars to fuel them. However all hydrogen schemes that don't extract the hydrogen from hydrocarbons have high energy costs, if this is scalable it is orders of magnitude more efficient and an energy producer rather than looser. That is big.It is also capable of processing waste and generating its own energy while doing it.

As a waste disposal technique this has real potential to be tremendously helpful (again, if it is scalable).

Hydrogen is unsuited for aircraft or ships but given enough cheap energy a case can be made for H2 fueled fuel cell cars. Their range would suffer,( from what I've read, about 150-200 miles is about the best one could realistically get without turning the fuel tank into a bomb) and that assumes very efficient fuel cells. If there are H2 stations everywhere, this becomes less of a problem.
However, this process, let alone any of the others, would only make sense for hydrogen production for cars if a vast amount of cheap power were available.


So, like a lot of alternate energy proposals, it is pretty much dependent on nuclear power being developed on a very large scale in this country.

Atomic power is  the future.

Science babe is actually Maria from Sakura Wars. (Which I should watch at some point)

Posted by: The Brickmuppet at 12:52 AM | Comments (9) | Add Comment
Post contains 319 words, total size 3 kb.

<< Page 1 of 1 >>
25kb generated in CPU 0.03, elapsed 0.0328 seconds.
65 queries taking 0.0168 seconds, 156 records returned.
Powered by Minx 1.1.6c-pink.