Re: But there is a catch. Hydrogen generally doesn't occur in nature by itself, but rather in combination with other elements. Today it is usually produced from fossil fuel.

William Morse wrote:
Don Lancaster <don@xxxxxxxxxx> wrote in
news:4l3sptF5i6bU2@xxxxxxxxxxxxxx:


G. R. L. Cowan wrote:

AKA Gray Asphalt 2 wrote:

To a non-scientist, it seems unscientific to say that rules of
thermodynamics guarantee that hycrogen can not be extracted from
water in a way that produces a net energy gain that is significant.
Nothing in science is written in stone, we are taught. Maybe that is
wrong. And if it is true, for all time and in all applications and
that new discoveries will not produce a new approach or a new
situation where the economics of hydrolysis make sense, then why are
intelligent scientists wasting their time on proceses invoving the
extraction of hydrogen using electrolysis?




If intelligent scientists are doing that, it is because there is very abundant energy with which to make electricity and then hydrogen that, in their opinion, will be more useful as hydrogen than it was as electricity or as its original form.




... after destroying most of the value of the electricity during the staggering loss of exergy.


Yo - it's a reversible process. There is therefore no theoretically necessary loss of energy, except that you have to lose some if you want to make the change in real time. In practice there is additional loss of energy due to process inefficiencies - which is presumably what the scientists are spending their time on trying to minimize.

Yours,

Bill Morse
I've never seen people successfully attack the problem of the inefficiency of heat creation in an intelligent way.

Not saying I've got answers...
.

Relevant Pages

  • Re: But there is a catch. Hydrogen generally doesnt occur in nature by itself, but rather in comb
    ... water in a way that produces a net energy gain that is significant. ... extraction of hydrogen using electrolysis? ... than it was as electricity or as its original form. ... There is therefore no theoretically necessary loss of energy, ...
    (sci.energy.hydrogen)
  • Tidal Energy
    ... Anyone interested in Tidal Energy? ... extracting energy from Tidal Movement of water. ... sites can incorporate other methods of energy extraction. ...
    (sci.energy)
  • Tidal Energy
    ... Anyone interested in Tidal Energy? ... extracting energy from Tidal Movement of water. ... sites can incorporate other methods of energy extraction. ...
    (sci.energy)
  • Re: Questions on uranium reserves
    ... I've seen estimates of the "energy threshold" for uranium ... ores (i.e. the grade below which you need more energy for U extraction ... find a high net energy fraction for U extracted from 0.001 percent ore. ... even though the ore grade is 0.0000003 percent. ...
    (sci.energy)
  • Re: FREE ENERGY Devices and Technology
    ... >> The energy before and the energy after are equal. ... > Constantly wrong Franz strikes again. ... The molecular configurations in the two plates. ... > I note once again that you referred to the extraction of energy ...
    (sci.energy)
Quantcast