2007-06-22 22:46:03 · 8 answers · asked by tanya z 1 in Science & Mathematics ➔ Chemistry
Fission reaction is much easier to get- by just spilting a fissile nucleus (usually uranium 235) by bombarding it with a slow neutron. A chain reaction then occur and control rods can be used to control the reaction by limiting the activity.
Fusion reaction by far is more complicated and required extreme temperature and pressures to occur. The sun does this but for us to imitate that on Earth, we need to imitate the similar condition on the sun- this requires alot of energy, and when you think about it, you are just generating what you used. Not very practical at the moment but i am sure in the near future we will be able to make more effiecient fusion nuclear reactors and soon replacing fission reactors. Fusion reactors are much more better to the environment- no radioactive waste!
2007-06-22 23:42:36 · answer #1 · answered by 47 2 · 1⤊ 0⤋
Work is in progress to develop a working fusion reactor, but the technology isn't quite there yet.
Fusion requires maintained high temperature and containment of the hot plasma and gas (gravity does this in stars). Fission is much simpler. All you have to do is bring together enough of a radioactive element and it starts to heat up all by itself because of the nuclear reactions.
2007-06-22 22:51:05 · answer #2 · answered by davidbgreensmith 4 · 0⤊ 0⤋
In nuclear reactor the fission reaction can be controlled easily. But at present we have no technology to control the fussion reaction in reactors. Hope one day scientist can do it.
2007-06-23 09:28:44 · answer #3 · answered by sillu s 2 · 0⤊ 0⤋
Currently fusion takes more enrgy to sustain than can be produce in a reactor. The plasma in a fusion reactor is contained in a mageticc field. it takes a great deal of electricity to maintain this feild. The development of better superconductors will greatly increase the efficiency of the reactors. Princton universty and Los Alamos, run by Berkley are the two leaders in research in this country and have both had sustained fusion for short times.
2007-06-22 23:03:09 · answer #4 · answered by Charles C 7 · 1⤊ 0⤋
Fusion is a bit on the warm side. Difficult to contain. Nuclear reactor only need to boil water, You can feel the heat from that one up there 93,000,000 mile away.
2007-06-22 23:01:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
No one knows how to make a fusion reactor
2007-06-22 22:47:46 · answer #6 · answered by Sam 5 · 0⤊ 0⤋
The giant fusion reactor in the sky powers numerous solar based systems like rain etc...
2007-06-22 22:49:26 · answer #7 · answered by ★Greed★ 7 · 0⤊ 1⤋
We can control fission reaction by using controlling rods(boron & cadmium). However, fusion reaction cann't be controlled.
2007-06-22 22:49:33 · answer #8 · answered by Vedic Astrologer 3 · 0⤊ 0⤋