This is the one that excites me.. Its in the links up at the top of the page (whose idea was that? I like it.)
http://www.newscientist.com/news/news.jsp?id=ns99992637
http://www.newscientist.com/news/news.jsp?id=ns99992637
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Sustained fusion?
- Thread starter Jerry Smith
- Start date
The big problem with nuclear fusion is the amount of heat it generates.
Plasma can only be confined (for now) with electromagnetic fields. To the vast dismay of scientists, the field needs to be adjusted to the plasma. Meaning, that every change in the plasma setup needs a readjustment of the field. During readjustment, the plasma strikes out, hitting the materials surrounding it, thus generating material stress through heat and radiation. Furthermore the materials get radioactively contaminated. At the current stage of development, the process of fusionm generates at least the same amount of radioactive waste as a normal nuclear plant. Well the upside is, in opposition to a classic nuclear plant, no radioactive radiation can pollute the environment. No sort of mishandling can generate radioactive particles, that escape into the environment. At worst you get lots of molten, radioactive materials.
Fusion as it is now, eliminates the risk of polluting environment through accidents. Nonethless it generates radioactive waste, which, like the waste from nuclear plants, needs to get safely stored. Safe storage means lots of cash cost, we all know, how eagerly companies want to part from cash
Plasma can only be confined (for now) with electromagnetic fields. To the vast dismay of scientists, the field needs to be adjusted to the plasma. Meaning, that every change in the plasma setup needs a readjustment of the field. During readjustment, the plasma strikes out, hitting the materials surrounding it, thus generating material stress through heat and radiation. Furthermore the materials get radioactively contaminated. At the current stage of development, the process of fusionm generates at least the same amount of radioactive waste as a normal nuclear plant. Well the upside is, in opposition to a classic nuclear plant, no radioactive radiation can pollute the environment. No sort of mishandling can generate radioactive particles, that escape into the environment. At worst you get lots of molten, radioactive materials.
Fusion as it is now, eliminates the risk of polluting environment through accidents. Nonethless it generates radioactive waste, which, like the waste from nuclear plants, needs to get safely stored. Safe storage means lots of cash cost, we all know, how eagerly companies want to part from cash
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I was under the impression that the waste generated by a fusion plant was equipment-oriented (the containment vessel and such), and that it 'cooled down' quite rapidly compared to some of the waste associated with fission.
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Yes, compared to traditional nuclear plant waste it cools down fast. I don't have any numbers, but nonethless for the time the equipment is actively emitting, it must be stored somewhere and of course it must be transported to the storage point, like any other radioactive waste. With of course the same risks.
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IIRC, it's roughly 50 years for the containment vessel. (Was it neutron flux? Darnit, this was all so long ago...).
And, at least it's solid waste, and considerably less of it.
And, at least it's solid waste, and considerably less of it.
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Long time ago, that I learned about nuclear power plants and their respective makeup.
I fear, that those same groups now heavily protesting against nuclear power plants and the moving of nuclear waste will move on then to the protesting about the moving of radioactive waste out of fusion plants. Therefore making fusion plants more expensive than necessary. Resulting in more reluctance to shut down nuclear plants because they are proven to work, cheap (well if you count the costs dishonest as it is done today..) and to the more uninformed public, the same problem (radioactive waste)
I fear, that those same groups now heavily protesting against nuclear power plants and the moving of nuclear waste will move on then to the protesting about the moving of radioactive waste out of fusion plants. Therefore making fusion plants more expensive than necessary. Resulting in more reluctance to shut down nuclear plants because they are proven to work, cheap (well if you count the costs dishonest as it is done today..) and to the more uninformed public, the same problem (radioactive waste)
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I like it, too, but I'm curious if it will have any links relating to evolution and creationism sometime soon...
- Joe
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