Re: End of the Road for Hydrogen

On Sat, 27 Jan 2007 14:39:29 +0000, Eeyore
<rabbitsfriendsandrelations@xxxxxxxxxxx> wrote:



Dan Bloomquist wrote:

kT wrote:
Eeyore <rabbitsfriendsandrelati...@xxxxxxxxxxx> wrote:
Dan Bloomquist wrote:
Pluto wrote:

the electricity produced is also much less than the fuel put into the generation
process. Producing hydrogen this way is very inefficient.

Bald face lie. Less than five percent of coals heating value gets to the
wheels of a vehicle via the electrolysis vector.It wasn't a lie, it was spot on.

I think you misread it, expecting it to say something else. He's correctly pointing
out that electrolytically generated hydrogen returns about 1/4 x 1/3 of the total
input power to a conventional thermal power station. Burn that fuel in an ICE like
BMW's V12 and you get about 1/4 x 1/4 x 1/3 of the input energy. About 2% in fact >>!


Internal combustion engines and drive trains are notoriously
inefficient no matter what fuel you burn in them.

And, what do you have in mind?

The simple fact of the matter is that gasoline and diesel engines will continue to be
used for motive power for many hundreds of years.

They're simply unbeatably convenient to use in so many applications. They will
increasingly be complemented by other methods of course.

I think you're drastically overestimating their longevity. Carbon
limits are coming, oil supplies are dwindling, they're dirty, noisy,
and complex, and they're showing signs of end-game obsolescence --
hybrids, increasingly complex systems, etc. Once the storage problem
is solved, electric motors will come into their own, and that doesn't
appear to be too far away.

--
Josh

[Truly] I say to you, [...] angel [...] power will be able to see that [...]
these to whom [...] holy generations [...]. After Jesus said this, he departed.

- The Gospel of Judas
.

Relevant Pages

  • Re: End of the Road for Hydrogen
    ... Producing hydrogen this way is very inefficient. ... wheels of a vehicle via the electrolysis vector.It wasn't a lie, ... input power to a conventional thermal power station. ... The simple fact of the matter is that gasoline and diesel engines will continue to be ...
    (sci.energy.hydrogen)
  • Re: [SLE] Warning to Americans!(now going OT)
    ... It doesn't take much in the way of electrical power to ... oxygen will produce later at the motor (or better, at the energy ... electrolysis is a very inefficient way to produce hydrogen gas. ... And while it's true we've got so very much more solar energy than we ...
    (SuSE)
  • Re: OT: Burning Salt Water
    ... as an energy source, because the energy that's used to tear the bonds ... Wait, with hydroelectric power, you're not putting any energy in, ...
    (alt.guitar.bass)
  • Re: Turning wind power into hydrogen
    ... When there is a need for Hydrogen, why not use wind power ... due to the staggering loss of exergy during electrolysis. ... As ABSOLUTELY GUARANTEED by thermodynamic fundamentals. ...
    (sci.energy.hydrogen)
  • Re: hydrogen powered cars?
    ... My one does up to 8liters/min and is more than sufficient to power a 1600 ... The total output of just one fanbelt driven truck alternator powers electrolysis which leaves about 30kw available at the flywheel. ...
    (sci.energy.hydrogen)