Re: [OT] for the close of all fission nuclear reactor in the world
- From: Anonymous <no-response@xxxxxxxxxxxxx>
- Date: Thu, 28 Feb 2008 02:12:33 GMT
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.
.
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