Bad things about fusion

Answer 1

It is very expensive to build, and so far we (humans) have never made it cost efficient.

As for the actual physics behind fusion - there aren't really any disadvantages from that angle!

Answer 2

Nuclear Fusion is the process of fusing Hydrogen atoms to form a heavier Hydrogen atom thus releasing huge amounts of energy. The only waste product of Nuclear Fusion is Hydrogen which is the most abundant element in the universe and allways will be so it is not bad for the enviorment to say the least. The only bad thing about Fusion is the sheer difficult to achieve it and to do this you need temperature you would find at the core of a star. Scientist say to achieve Fusion is like putting a star ina box.

The bad things about it are is that it is still unstable. Appart from that it would give is vast amounts of power and it is also clean.

Answer 3

I'm assuming the question relates to the generation of energy using Earth-based fusion, since otherwise I can't figure out what it might mean. Big negative number one is that about the only way we can get it to happen with a net release of energy (as opposed to requiring more energy to make it happen than we get out) is in a thermonuclear bomb, and the negatives of that should be fairly obvious. At one time it was proposed that we could set off H-bombs underground and use the heat released to generate electricity ... a sort of artificial geothermal power ... but that's probably not going to happen: would YOU want to trust Berserkistan (not intended as a potshot at any particular real country; substitute Berserkenland or the United Kooks of Berserkia if it makes you feel better) making statements like "Oh, those thermonuclear bombs? No, those are for power generation, we'd never thinkof putting them on missiles and lobbing them at our traditional heathen infidel subhuman enemies one country over." However, research is continuing; the JET experiment in 1997 managed to generate a peak of about 65% of the input power and there are a couple of other projects in the planning or construction stages that might do better than that.

Answer 4

It is proving very difficult to produce controlled fusion in man-made equipment such as tokamaks. By building larger examples such as ITER success may be achieved but it is very expensive to experiment on this scale. Apart from this fundamental problem, the engineering to extract and use the energy from fusion has not been worked out yet.

Answer 5

Nuclear fission is what takes place in a nuclear power station. When nuclear fission happens it is usually in a controlled environment and cause a chain reaction. If this chain reaction were to get out of hand then radiation could seep out and damage the environment and people surrounding. It must be handled correctly which can be costly and when decommissioned must be done correctly which can cost. However nuclear fission produces a lot of energy and produces no greenhouse gassed such as CO2 .

Answer 6

There are technical issues that need to be overcome before fusion reactors can produce more energy than it takes to run them. These are primarily a matter of heat and pressure, the combination of which would vaporize any physical containment we have developed, needing to be overcome in order to introduce fuel to the reactor as it runs.

Another drawback is that a fusion reactor might produce lots of neutrons, which can alter the atoms in the area of the reaction, changing their isotopes and making them radioactive.

Answer 7

H-bombs