How is nuclear fusion energy obtained?

Answer 1

In the Sun and other stars, the fusion reactions occur under enormous pressure and incredible heat. These conditions cannot be replicated on Earth.

However, a reasonable facsimile of the fusion reaction can be simulated by using hydrogen and lithium compounds, and applying a short burst of concentrated energy (usually by lasers). This theoretically can force an implosion that for a brief moment provides the necessary particles, heat, and pressure to intitiate fusion.

So far, no fusion reactions have generated more energy than they required.

Answer 2

Usual forms of mining are used to obtain (say) uranium ore, which is then refined into yellow cake. This then is further refined to extract the isotopes most useful as a nuclear fuel.

The waste uranium is used as DU Depleted Uranium for bullets, and ship keels. It has a high penetration, and is 'self-sharpening' in bullet use. This is not a benign material because of radioactivity, particularly as a dust breathed in. .

If one wishes bomb-grade fuel, this is refined as uranium hexafluoride, by a series of centrifuges, and is an expensive process.

Other materials are suitable as reactor fuel, but as they do not produce weapons-grade by-products, they are ignored at the moment. Thorium would be in the vanguard here.

Answer 3

by biding strong energy!