Re: [OT] for the close of all fission nuclear reactor in the world
- From: "Rod Pemberton" <do_not_have@xxxxxxxxxxxxx>
- Date: Thu, 28 Feb 2008 01:59:50 -0500
"Anonymous" <no-response@xxxxxxxxxxxxx> wrote in message
news:lMoxj.25184$612.22776@xxxxxxxxxxxxxxxxxxxxx
On Thu, 21 Feb 2008 06:01:21 -0500, Rod Pemberton wrote:
Fusion
reactors have the same problem as hydrogen fuel-cells: hydrogen doesn't
exist in a pristine state on Earth. I.e., you must use large amounts
energy to create pure hydrogen only to convert it back to energy...
Unless you are able to extract far more energy from the hydrogen than
used in creating the hydrogen, you lose.
Dead wrong there.
The problem with fusion reactors is that there is simply no easy way of
extracting the energy from the reactor, but maintaining the reaction in a
state that doesn't run away on you, or simply die out, takes a massive
amount of energy.
The conventional method of taking energy out of a reactor/ -- tubes of
coolant that get heated as they pass through the core, powering turbines
on the way out -- is simply not possible with fusion, since if the
superheated plasma comes into contact with any sort of solid material
(it's suspended in midair by a magnetic field while it's reacting), and
no alternative efficient enough to actually extract power from this
reaction at better than break-even ratios has been found.
The potential power that could be extracted from fusion far, far
outweighs the cost of extracting it from extracting it from sea water.
Even the power that's needed for the magnets used for containment far
outweighs the power needed to extract the hydrogen. The problem is that
at the moment, most of the potentially extractable energy is simply lost
entirely.
From your description,
no alternative efficient enough to actually extract power from this
reaction at better than break-even ratios has been found.
they have a heat transfer problem similar to that of steam engines: no
sufficiently efficient process to transfer a high percentage of energy from
the "heat source" to the "working fluid"... One idea that comes to my mind,
which I was mentally playing with for steam engines, but would be _far_ more
_useful_ in this situation (if scientists can make it work...) is hot ice.
Water can be frozen at extremely high temperatures with sufficiently high
pressures, i.e., hot ice (report of a planet of by astronomers recently).
But, in this scenario, we want cold ice. Water can also be frozen at room
temperature via a sufficiently strong electromagnetic field (report of by a
Japanese researcher) I.e., solid room temperature ice capable of storing
huge amounts of energy as it heats up to hot ice and ice which is fixed as a
solid due to the electric field. Once immensely hot, remove the electric
field - since the ice was frozen by EMF not high pressures, the removal of
the electric field will produce instantaneous high pressure steam. Vent off
the steam, reinsert more room temperature EMF'd ice to passively absorb
heat, repeat...
Rod Pemberton
.
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