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No way has yet been found to reach break-even in a controlled fusion reaction and get as much energy out as was needed to put in to start the reaction. To make a reactor you need to go past break-even and release extra energy.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoFusion would be far more prefferable to fission in terms of energy generation, however current technology limits our ability to create and sustain a viable fusion reaction that generates power like a fission reaction does, often times, with current technology, more power must be put in to the fusion reaction to sustain it than what comes out of it.
Minor detail, no fusion reactor experiment has ever reached "breakeven" (the point where energy output equals energy input). While "breakeven" is an important point for research purposes, a practical reactor would need to far exceed that to be generating usable power. And we have been working on the problem for well over half a century.
Wiki User
∙ 12y agoOnly beacuse of starting trouble. Any way we need billion kelvin temperature to start with for which we have to rely on fission reaction.
One more important point we cannot have a controlled fusion reaction as we do so in fission ie nuclear reactor using control rods.
Wiki User
∙ 12y agoAt this time nuclear fusion is only practical in bombs and stars. Since the early 1950s various experimental apparatus have been tried to determine how to build a fusion reactor. None of these has yet reached breakeven (the point where the same amount of energy is released as needed to be applied to initiate fusion) and one needs to go far beyond breakeven to make a reactor to generate usable power.
Every 10 years or so some fusion researchers will claim usable reactors are only another 10 years away... but we are still waiting.
Wiki User
∙ 11y agonuclear fussion process is not followed in most of the power plants because it is very difficult process to combine the atoms .rather than spliting the atoms.nuclear fission process is very easy that to split atom.
Wiki User
∙ 11y agoFusion reactors have turned out to be much much more complicated to make than anyone had ever anticipated. But fission reactors are easy to make.
Wiki User
∙ 11y agobecause we can't make fusion reactors work, yet. fission is easy though,
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What are the three main advantages of a fusion reactor compared to a fission reactor?
Nuclear fusion reactors do not exist yet as we don't know how to build them. All nuclear reactors are nuclear fission reactors.
Name a nuclear process in which a huge amount of energy is released and which can also be used to generate electrical energy in power stations?
The processes of fission, fusion and fission-fusion-fishion all release energy. Currently, only fission reactors are used to produce electricity.
What does nuclear energy include?
Mostly power plants operating with fission reactors. Also experiments with nuclear fusion, and nuclear weapons
What advantages would a fusion reactor have over the fission reactors currently being operated?
Plenty of cheap fuel, and no radioactive waste.
How does the energy released by fusion compare in magnitude with that released by fission?
In a fission reactor which has been operating at a steady power level, on shutdown the fission reactions stop at once, but the radioactivity of the fission products in the fuel still produces thermal energy. This is about 6.5 percent of the previous power level immediately, dropping to about 1 percent after 1 hour. In the case of fusion, there are no fission products so this comparison does not exist, in fact if fusion reactors can ever be made, this is one of the advantages over fission reactors.
Do fusion powers nuclear reactors?
No. Our reactors are fission reactors. We haven't yet mastered fusion reactors for power.
What are the three main advantages of a fusion reactor compared to a fission reactor?
Nuclear fusion reactors do not exist yet as we don't know how to build them. All nuclear reactors are nuclear fission reactors.
What are the two type of reactors?
There are fission and fusion reactors. However, at present (2016) there is no commercial fusion reactor which can produce more energy than is required to operate it.
What isdifference nuclear fission and nuclear fission?
The difference between Fusion and Fission is that Fission is easier to do and produces more energy than fusion reactions. However fission can be dangerous and is used in Nuclear reactors. Fusion however is safer and produces less energy but safely. It is quite difficult to cause a Fusion reaction however.
Was the Chernobyl meltdown from fusion or fission?
The reactor(s) at Chernobyl are fission reactors, and fission of fuel and fission products following the fire and the overheating of the core melted it down.
What process do nuclear reactors use?
Nuclear reactors use nuclear fission.
How long will nuclear energy be on earth?
nuclear power is going to be around for much longer, more fission reactors will be built to compensate in the increase in energy usage and more research is being done to make fusion energy which will replace fission reactors(this is quite a while yet before fusion reactors can be used to produce use usable energy for long periods of time).
What are ideal places for fission and fusion?
Fission takes place in nuclear reactors, which are useful to produce electricity. Fusion has not yet been harnessed on earth, so the only place it happens is in stars
Which do you currently use nuclear fusion or fission?
Fission
How are they different from regular nuclear reactors?
Please elaborate on "they" as no comparison can be given otherwise. Do you mean?: "How is nuclear fusion different from regular nuclear reactors (nuclear fission?)"
Where do you use nuclear energy?
In nuclear fission reactors
Why are fusion reactors not yet present day reality like fission reactors?
Only beacuse of starting trouble. Any way we need billion kelvin temperature to start with for which we have to rely on fission reaction. One more important point we cannot have a controlled fusion reaction as we do so in fission ie nuclear reactor using control rods.
