Environment & Energy

longship

(40,416 posts)

9. Only if the energy hydrolyzing the water is green.

Reply to nationalize the fed (Original post)

Sun Jun 28, 2015, 08:55 PM

Jun 2015

And let's make sure that everybody understands that there are no sources of hydrogen on Earth, except that like in water, H2O.

And let's make sure that everybody understands that it takes more energy to free the hydrogen from water than burning the hydrogen generates. It's that nasty physics poking it's ugly head again.

S = k Log W

Thermodynamics is a bitch.

Hydrogen is not an energy source and anybody who says it is, is lying.

But it might be a good energy storage mechanism, if it can be done efficiently. This OP may be a way to lead to that goal.

R&K

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Highlight:

Invention May Make Hydrogen a Real Green Contender [View all] nationalize the fed Jun 2015 OP

Before The Celebrations Begin - Let's See If This Ever Leaves The Lab cantbeserious Jun 2015 #1

The "problem" with fuel cells is that water still needs to be converted to hydrogen first.. DCBob Jun 2015 #2

Hydrogen isn't particularly efficent on the other end either though Fumesucker Jun 2015 #3

Don't forget the energy to compress it. hunter Jun 2015 #5

It's cleaner. DCBob Jun 2015 #7

Yeah, that makes sense but if the goal is to reduce burning hydrocarbons.. DCBob Jun 2015 #6

If you are putting electricity in one end and out the other batteries are more efficient Fumesucker Jun 2015 #8

Direct Stanford Source and link to Nature Communications: hunter Jun 2015 #4

Only if the energy hydrolyzing the water is green. longship Jun 2015 #9

More information here OKIsItJustMe Jun 2015 #10